SY 0061-1992 Technical regulations for coating the outer wall of buried steel pipelines with organic coatings SY0061-1992 Standard download decompression password: www.bzxz.net

Standard of the People's Republic of China for the Petroleum and Natural Gas Industry Technical Regulations for the Application of Organic Coating on the External Wall of Underground Steel Pipelines SY 0061-92 1991·Beijing Standard of the People's Republic of China for the Application of Organic Coating on the External Wall of Underground Steel Pipelines SY 0061-92 Editorial Department: Daqing Design Institute of China Petroleum and Natural Gas Corporation Approved by the Ministry of Energy of the People's Republic of China Implementation Date: August 1, 192 Petroleum Industry Press 1991·Beijing Standard of the People's Republic of China for the Application of Organic Coating on the External Wall of Underground Steel Pipelines SY 006192
Explanation of the text
1991·Beijing
Standard of the People's Republic of China for the coating of organic coating on the outer wall of steel pipelines
SY 0061--92
Explanation of the article
Petroleum Industry Press
1991·Beijing
Explanation of the formulation
This standard is compiled by our institute in accordance with the notice of China National Petroleum Corporation (90) No. 53 of CNPC Science.
In the process of compilation, we have widely solicited the opinions of key construction and management departments, and coordinated with the current anti-seismic construction acceptance specifications. In the process of implementing this standard, if there are any parts that need to be modified or supplemented, please send your opinions and relevant materials to our institute for reference in future revisions. Daqing Petroleum Administration Bureau Oilfield Construction Design Institute October 1991
3 Material Management
Nongmian Treatment
On-site Patching
B Aimeimin Steel Pipe Transportation and Installation
Ministry of Energy Document
Energy Yue (1992) No. 593
Notice on the Approval and Release of 28 Oil and Gas Industry Standards including "Quality Requirements for Well Logging Original Data" To all relevant units:
The draft of 28 standards including "Quality of Well Logging Original Data" is now approved as the Shibao natural gas industry standard. The numbers and names of each standard are as follows: No. Standard No.
Standard Name
1SF5132-92 Quality requirements for raw materials of auxiliary shaft (replacing SY5132-87)
2SF5330-92 Technical specification for acquisition of two-dimensional seismic data (replacing SY533088)
35Y5332-92 Technical specification for processing of two-dimensional seismic data (replacing SY5332-88)
45Y0061-92 Technical regulations for external diagnosis of micro-organic layer of steel pipe for geotechnical engineering 5SY0062-92 Test method for penetration of anti-corrosion layer of pipeline (pure rod method) 6SY0063-92 Inspection method for pipeline anti-corrosion layer 7 SY0064-92 Test method for water submergence of pipeline detachment layer 8SY0065-92 Test method for abrasive resistance of pipeline detachment layer (explosion test) 95Y0066-92 Non-destructive measurement method for thickness of pipeline detachment layer (blue method) 10 ST0067-92 Test method for impact resistance of pipeline detachment layer (stone method)
11ST/T.5452-92 Basic guidelines for the preparation of management and work standards of petroleum enterprises
12 ST 56453-92 Format for archiving and processing of required data 135F5454-92 Thermal exploration technology of vertical profile method 145T=156-02 Technical specifications for three-dimensional geospatial data collection 15 ST/T5456-92 Labor standards for installation of petroleum communication equipment 165Y/T5451-92 Petroleum communication warship engineering customization 17 5T/5458-92 Petroleum communication operation and maintenance labor quota 185T/T5459-92 Test oil engineering labor quota 19 SY/T5469-92 Warehouse material supervision labor quota 20ST/T5461-92 Petroleum hammer machine maintenance energy management quota 2IST/T546-92 Oilfield pressure baby plunger system form and basic parameters 22ST/T5464-02 Calculation method of cutting and perforating quality indicators 23SY/T5465-92 Pumping well annular well turning operation procedures 215Y 5466-92 Pre-construction engineering technical conditions 25 5Y5467-92 Casing column pressure gauge volume
2G SY/5089-92 Drilling and well history and report format (replacing SY508-85)
27ST5127-92 Oil wellhead casing head (replacing SY6127--8 and 15Y520187)
23 ST 0518-92 The above standards shall be implemented from December 1, 1992. Ministry of Energy of the People's Republic of China
June 20, 1992
1 General
2 Terminology
3 Material management
4 Pretreatment of the surface
Cleaning and testing
On-site inspection
7 Repair of coating defects
8 Transportation and installation of copper pipes with coating
Appendix Explanation of terms used in this standard
Additional explanation
am (1e)
|1 General
1.0.1 This standard specifies the minimum requirements for the thermal conductivity of the outer wall of steel pipes.
1.0.2 This standard covers the general technical requirements for the management of the outer wall of the steel pipe, surface pretreatment, glue removal and testing, on-site cleaning, repair of defects in the outer layer, handling and installation of the outer layer saw pipe. 1.0.3 This standard considers the two situations of prefabrication and on-site treatment. 1.0.4 The material manufacturer shall provide detailed technical specifications of the outer layer material. 1.0.5 If the environment conditions are very unusual, such as river crossing, rock soil, special soil and pipelines in casing, the design department shall propose additional requirements that exceed the requirements of this standard.
2 Terminology
2.0.1 A general term for the group of outer layer materials with heating as the main body, which require heating construction.
2.0.2 A general term for the group of outer layer materials with new materials as the main body, which do not require heating construction.
2.0.3 Prefabricated tape is a prefabricated and shaped grid-shaped material in the factory, usually made of tape materials.
2.0.4 Hot-drying tape is a prefabricated tape that needs to be heated for construction, and its adhesive is usually a thermoplastic material.
2.0.5 Cold-coated adhesive prefabricated tape is a prefabricated tape that does not require heating for construction. 2.0.6 Wrap tape is a natural material used to reinforce the cover layer or outer protective film. 3 Material management
3.1 General provisions
3.1.1 Prefabricated materials must be strictly protected from pollution and damage before and during use. Before using materials with a shelf life, the quality of the materials should be checked to determine whether they can be used. Materials that have exceeded their shelf life shall not be used.
3.1.2 On all packaging containers, the manufacturer's name, product name, grade, batch number, production date, shelf life, storage conditions, etc. should be marked with a clear water-resistant mark.
3.2 Paint
3.2.1 Paint should be stored in a sealed container and must be stored within the specified temperature range and should be kept away from extreme temperatures. 3.2.2 Paint is volatile and flammable, so it must be kept away from open flames and other sources of ignition. 3.2.3 Paint must be fully mixed before use. If necessary, stir during use to prevent sedimentation
3.3 Hot-drying paint
3.3.1 Hot-drying paint should be stored in unopened original containers to prevent contamination. The storage temperature should comply with the manufacturer's regulations. 3.3.2 Hot-drying paint must be heated at the temperature specified in the relevant standards to be suitable for painting. The heating and mixing of the solution must be controlled appropriately to prevent decomposition, excessive volatilization of light components, foaming and sedimentation of fillers.
3.3.3 The acid must be cleaned before use. 3.3.4 When processing and transporting hot paint, it is necessary to prevent contamination by other substances. 3.4 Cleaning of the paint
3.4.1 Cleaning of the paint must not be left in the original container. The pillow material containing volatile solvents must be stored in a sealed manner. The storage temperature should comply with the manufacturer's regulations. 3.1.2 The materials containing volatile and combustible substances must be kept away from open flames and other sources.
3.5 Raw tapes and energy tapes
1.5.1 Pre-wrapped hot-dip tapes, cold-dip tapes, adhesive tapes, sludge tapes (or reinforced combustible materials) including plastic film, glass cloth and cowhide. 3.5.2 The prefabricated back and warp should be packaged in a non-dry material, and the belt used should be in good condition.
3.5.3 The belt and the belt wrapping should be handled with care during the bottle delivery process. The material can be moved by the store. Any material that is twisted and deformed should not be used. 3.5.4 Prefabricated belts and the whole push should not be exposed to sunlight for a long time. 3.6.1 This type of material includes the general materials (thermosetting or thermoplastic) of the molding powder.
3.6.2 The materials should be stored in unopened clean containers in a dry and dark place within the scope of use specified by the manufacturer.
3.6.5 Materials containing volatile or flammable injection agents must be stored away from fire and marked as recyclable. When used, they should be used immediately and the container should be resealed after use.
3.6.4 During the treatment process, the silicone powder must be tested to prevent impurities from entering the material, and the excess or excessive moisture absorption must be prevented.
3.7 Plastic film
3.7.1 This type of material includes heat shrinkable field filling materials and factory-limited folding molding jackets. 3.1.2 The materials must be stored in the original unopened containers and dried in a dry place. 4 Surface pretreatment 4.1 Surface condition 4.1.1 The purchased steel pipes must be accompanied by the instructions for the use of protective oil, porcelain or cleaning agent and the method of removal. 4.1.2 The materials used for identification must be compatible with the materials used in the installation. 1. The bottom flow of the solution must be compatible with the final cover material, and the materials used for temporary and protective use in the pipe must be compatible with the final material.
4.2 Surface treatment of the steel pipe
4.2.1 Before surface treatment, the steel pipe must be free of foreign matter, rust, and hair, weld nodules, lubricants, and wood particles. 4.2.2 Before coating, the steel pipe must be machine-cleaned or sandblasted to remove rust, rust, and dirt.
4.2.3 It is strictly forbidden to use mechanical equipment or tools that can produce hair or damage to the steel pipe.
4.2.4 For the steel pipe that has been coated, the coating must be dried to remove all moisture, dirt, and dirt on the surface.
42.5 It is strictly forbidden to use the coating machine that can be used as a coating machine. 4.3 Surface pretreatment before coating in the factory
4.3.1 The surface of the steel pipe shall be subject to the rust removal level provided by the design unit according to the technical standards of the specific coating pressure, and shall comply with the provisions of GB8923. The rust removal level of the general coating layer shall not be lower than the industrial grade S.2
4.3.2 The steel pipe after rust removal must be dried and cleaned. 4.3.3 If primer is used, it must be removed within 5 minutes after surface pretreatment. 4.3.4 For surface pretreatment of on-site patching and rust removal, see Sections 6 and 7. 5 Coating and testing
5.1 Coating
5.1.1 The selection of the coating material shall comply with the provisions of the relevant standards. 5.1.2 The coating method of the coating layer shall comply with the requirements of the relevant standards. 5.2 Inspection
5.2.1 After the repair, the pre-salt layer must be inspected. The inspection items include appearance, structure, thickness, strength and defects. Any defects found during the inspection shall be repaired in accordance with the provisions of Chapter 7.
5.2.2 The inspection methods for the above items shall comply with the relevant standards. 6 On-site patching
6.1 General
6.1.1 The section of the pre-salt layer connected by welding or machine polishing such as welding must be patched on site. The quality of the on-site patching layer shall not be lower than that of the pre-salt layer of the steel pipe. 6.2 Pre-treatment
6.2.1 When removing the original layer at the patching site, care must be taken to avoid damage to the adjacent covering layer. The edge of the thick layer should be cut off. If there is an external tape, it should be removed for a long enough time to ensure that the entire layer is firmly bonded to the original layer. 6.2.2 The surface of the boiler tube at the patching point must be cleaned with a burr remover to remove all dirt and grease. All dust, dirt, rust, rolled hooks, corroded skin, loose short covers, failed bottom readings, good light, welding scars and burrs should be removed with tools such as steel wire. No marks,
6.5 Materials
6.3.1 If a bottom filter is required, it should be applied evenly, and the specifications and curing time should be determined according to the relevant blue layer standards.
6.3.2 The cover material used for the existing scale patching must be compatible with the steel pipe and not lower than the quality of the steel cover.
6.3.3 The cover material must ensure that there is no air gap, no bulging, no air entrapment, etc. when applying. For irregular pipe fittings such as doors, cover materials that are suitable for their shapes should be used.
6.3.4 The new layer must be in contact with the original material, and the width must meet the requirements of the original cover layer. 7 Repair of cover layer defects
7.0.1 When repairing, the remaining cover layer should be intact and bonded to the substrate. The defective area should be cut to increase the strength of the repair. 7.0.2 The materials in the repair area must be removed immediately. 1.0.3 If the base coat is to be applied at the repair site, the base coat must be properly dry before applying the base coat material.
1.0.4 The repair material used must be bonded to the original section and not be of low quality.
8 Handling and installation of steel pipes with covering layer
8.1 General provisions
8.1.7 The handling and installation methods adopted should minimize the damage to the covering layer. 8.2 Lifting equipment
8.2.1 Use equipment that is not harmful to the entire layer. 8.2.2 The belt hoist must have a certain width and must not have protruding brackets or bolts to avoid damaging the covering layer.
8.2.3 The whole wood and pipe rack must have a certain width and be added to prevent the covering layer from being damaged. At the same time, the cushions and pipes should be arranged reasonably so that the steel pipes with covering layer are pressed on the full width of their supporting surface.
8.3 Storage and transportation
8.3.1 Double covering layers can be stacked in an overlapping manner to ensure that the covering layers of adjacent steel pipes are evenly stressed over the entire width. Otherwise, additional cushions should be added. It is strictly forbidden to place them too high. 8.3.2 During transportation, the fixing device used should not damage the cover layer, steel pipe or radiator 8.4 Installation
8.4.! The steel pipes for the cover layer that are not immediately put into the trench should be properly cushioned to prevent the cover layer from being pushed. 8.4.2 Before the steel pipe is put into the trench: the debris that can damage the cover layer must be cleared from the bottom of the trench. 8.4.3 When the steel pipe is put into the trench, the operation must be careful to prevent the pipe from being hit or abraded by the trench edge. If the absorbent layer is damaged, it must be repaired according to the provisions of Chapter 7. 8.4.4 When backfilling, it must be done carefully to prevent rocks, mud or similar objects from being thrown into the trench to protect the cover layer. To prevent such damage, padding or protective materials may be used. 1. Explanation of terms used in this standard. The terms used in this standard to describe the degree of strictness are as follows to distinguish between the following during implementation: 1. Words that indicate strictness and that it is necessary to do so: positive words use "must", negative words use "strictly prohibited"; 2. Words that indicate strictness and that it should be done in normal circumstances use "positive" for positive words, and "should not" or "must not" for negative words; 3. Words that indicate that there is a choice and that it should be done first when conditions permit use "should" or "may" for positive words, and "should not" for negative words; 4. Words that indicate that it is allowed to choose and that it should be done first when conditions permit use "should" or "may" for positive words, and "should not" for negative words. Additional notes: This standard adopts the National Acute Protective Equipment Association (NACE) standard. RP-02-15 "Recommended practice for coating the outer wall of buried steel pipelines with organic coatings" Standard H
Standard of the Petroleum and Natural Gas Industry of the People's Republic of China Technical regulations for coating the outer wall of buried steel pipelines with organic coatings
SY 0061-82
1991 Beijing
Standard of the Petroleum and Natural Gas Industry of the People's Republic of China Technical regulations for coating the outer wall of buried steel pipelines with organic coatings
5Y 0061--92
Article explanation
Petroleum Industry Publishing House
1991-Beijing
Formulation explanation
This standard is prepared by our institute based on the notice of China Petroleum and Natural Gas General Consultation (90) CNPC Science No. 53.
During the preparation process, we have solicited the opinions of the oilfield construction and management departments, and coordinated with the current anti-separation construction acceptance specifications. In the process of implementing this standard, if there are any changes or additions that need to be made, please send us the relevant information and materials for future reference. Daqing Petroleum Administration Bureau Oilfield Construction Design Institute October 1991
1 General Principles
3 Material Management
4 Surface Treatment
6 On-site Patching
Transportation and Installation of Layered Steel Pipes
(6)2 Materials should be stored in unopened containers in a dry and dark place within the scope of use specified by the manufacturer.
3.6.5 Materials containing volatile or flammable agents must be stored away from fire and marked as recyclable. When used, they should be used immediately and the container should be resealed after use.
3.6.4 During treatment, the silicone-free materials must be tested for impurities, excess or excessive moisture absorption.
3.7 Plastic film
3.7.1 This type of material includes heat shrinkable field patching materials and factory-limited folding molding jackets. 3.1.2 The materials must be stored in the original unopened containers and dried in a dry place. 4 Surface pretreatment 4.1 Surface condition 4.1.1 The purchased steel pipes must be accompanied by the instructions for the use of protective oil, porcelain or cleaning agent and the method of removal. 4.1.2 The materials used for identification must be compatible with the materials used in the installation. 1. The bottom flow of the solution must be compatible with the final cover material, and the materials used for temporary and protective use in the pipe must be compatible with the final material.
4.2 Surface treatment of the steel pipe
4.2.1 Before surface treatment, the steel pipe must be free of foreign matter, rust, and hair, weld nodules, lubricants, and wood particles. 4.2.2 Before coating, the steel pipe must be machine-cleaned or sandblasted to remove rust, rust, and dirt.
4.2.3 It is strictly forbidden to use mechanical equipment or tools that can produce hair or damage to the steel pipe.
4.2.4 For the steel pipe that has been coated, the coating must be dried to remove all moisture, dirt, and dirt on the surface.
42.5 It is strictly forbidden to use the coating machine that can be used as a coating machine. 4.3 Surface pretreatment before coating in the factory
4.3.1 The surface of the steel pipe shall be subject to the rust removal level provided by the design unit according to the technical standards of the specific coating pressure, and shall comply with the provisions of GB8923. The rust removal level of the general coating layer shall not be lower than the industrial grade S.2
4.3.2 The steel pipe after rust removal must be dried and cleaned. 4.3.3 If primer is used, it must be removed within 5 minutes after surface pretreatment. 4.3.4 For surface pretreatment of on-site patching and rust removal, see Sections 6 and 7. 5 Coating and testing
5.1 Coating
5.1.1 The selection of the coating material shall comply with the provisions of the relevant standards. 5.1.2 The coating method of the coating layer shall comply with the requirements of the relevant standards. 5.2 Inspection
5.2.1 After the repair, the pre-salt layer must be inspected. The inspection items include appearance, structure, thickness, strength and defects. Any defects found during the inspection shall be repaired in accordance with the provisions of Chapter 7.
5.2.2 The inspection methods for the above items shall comply with the relevant standards. 6 On-site patching
6.1 General
6.1.1 The section of the pre-salt layer connected by welding or machine polishing such as welding must be patched on site. The quality of the on-site patching layer shall not be lower than that of the pre-salt layer of the steel pipe. 6.2 Pre-treatment
6.2.1 When removing the original layer at the patching site, care must be taken to avoid damage to the adjacent covering layer. The edge of the thick layer should be cut off. If there is an external tape, it should be removed for a long enough time to ensure that the entire layer is firmly bonded to the original layer. 6.2.2 The surface of the boiler tube at the patching point must be cleaned with a burr remover to remove all dirt and grease. All dust, dirt, rust, rolled hooks, corroded skin, loose short covers, failed bottom readings, good light, welding scars and burrs should be removed with tools such as steel wire. No marks,
6.5 Materials
6.3.1 If a bottom filter is required, it should be applied evenly, and the specifications and curing time should be determined according to the relevant blue layer standards.
6.3.2 The cover material used for the existing scale patching must be compatible with the steel pipe and not lower than the quality of the steel cover.
6.3.3 The cover material must ensure that there is no air gap, no bulging, no air entrapment, etc. when applying. For irregular pipe fittings such as doors, cover materials that are suitable for their shapes should be used.
6.3.4 The new layer must be in contact with the original material, and the width must meet the requirements of the original cover layer. 7 Repair of cover layer defects
7.0.1 When repairing, the remaining cover layer should be intact and bonded to the substrate. The defective area should be cut to increase the strength of the repair. 7.0.2 The materials in the repair area must be removed immediately. 1.0.3 If the base coat is to be applied at the repair site, the base coat must be properly dry before applying the base coat material.
1.0.4 The repair material used must be bonded to the original section and not be of low quality.
8 Handling and installation of steel pipes with covering layer
8.1 General provisions
8.1.7 The handling and installation methods adopted should minimize the damage to the covering layer. 8.2 Lifting equipment
8.2.1 Use equipment that is not harmful to the entire layer. 8.2.2 The belt hoist must have a certain width and must not have protruding brackets or bolts to avoid damaging the covering layer.
8.2.3 The whole wood and pipe rack must have a certain width and be added to prevent the covering layer from being damaged. At the same time, the cushions and pipes should be arranged reasonably so that the steel pipes with covering layer are pressed on the full width of their supporting surface.
8.3 Storage and transportation
8.3.1 Double covering layers can be stacked in an overlapping manner to ensure that the covering layers of adjacent steel pipes are evenly stressed over the entire width. Otherwise, additional cushions should be added. It is strictly forbidden to place them too high. 8.3.2 During transportation, the fixing device used should not damage the cover layer, steel pipe or radiator 8.4 Installation bzxz.net
8.4.! The steel pipes for the cover layer that are not immediately put into the trench should be properly cushioned to prevent the cover layer from being pushed. 8.4.2 Before the steel pipe is put into the trench: the debris that can damage the cover layer must be cleared from the bottom of the trench. 8.4.3 When the steel pipe is put into the trench, the operation must be careful to prevent the pipe from being hit or abraded by the trench edge. If the absorbent layer is damaged, it must be repaired according to the provisions of Chapter 7. 8.4.4 When backfilling, it must be done carefully to prevent rocks, mud or similar objects from being thrown into the trench to protect the cover layer. To prevent such damage, padding or protective materials may be used. 1. Explanation of terms used in this standard. The terms used in this standard to describe the degree of strictness are as follows to distinguish between the following during implementation: 1. Words that indicate strictness and that it is necessary to do so: positive words use "must", negative words use "strictly prohibited"; 2. Words that indicate strictness and that it should be done in normal circumstances use "positive" for positive words, and "should not" or "must not" for negative words; 3. Words that indicate that there is a choice and that it should be done first when conditions permit use "should" or "may" for positive words, and "should not" for negative words; 4. Words that indicate that it is allowed to choose and that it should be done first when conditions permit use "should" or "may" for positive words, and "should not" for negative words. Additional notes: This standard adopts the National Acute Protective Equipment Association (NACE) standard. RP-02-15 "Recommended practice for coating the outer wall of buried steel pipelines with organic coatings" Standard H
Standard of the Petroleum and Natural Gas Industry of the People's Republic of China Technical regulations for coating the outer wall of buried steel pipelines with organic coatings
SY 0061-82
1991 Beijing
Standard of the Petroleum and Natural Gas Industry of the People's Republic of China Technical regulations for coating the outer wall of buried steel pipelines with organic coatings
5Y 0061--92
Article explanation
Petroleum Industry Publishing House
1991-Beijing
Formulation explanation
This standard is prepared by our institute based on the notice of China Petroleum and Natural Gas General Consultation (90) CNPC Science No. 53.
During the preparation process, we have solicited the opinions of the oilfield construction and management departments, and coordinated with the current anti-separation construction acceptance specifications. In the process of implementing this standard, if there are any changes or additions that need to be made, please send us the relevant information and materials for future reference. Daqing Petroleum Administration Bureau Oilfield Construction Design Institute October 1991
1 General Principles
3 Material Management
4 Surface Treatment
6 On-site Patching
Transportation and Installation of Layered Steel Pipes
(6)2 Materials should be stored in unopened containers in a dry and dark place within the scope of use specified by the manufacturer.
3.6.5 Materials containing volatile or flammable agents must be stored away from fire and marked as recyclable. When used, they should be used immediately and the container should be resealed after use.
3.6.4 During treatment, the silicone-free materials must be tested for impurities, excess or excessive moisture absorption.
3.7 Plastic film
3.7.1 This type of material includes heat shrinkable field patching materials and factory-limited folding molding jackets. 3.1.2 The materials must be stored in the original unopened containers and dried in a dry place. 4 Surface pretreatment 4.1 Surface condition 4.1.1 The purchased steel pipes must be accompanied by the instructions for the use of protective oil, porcelain or cleaning agent and the method of removal. 4.1.2 The materials used for identification must be compatible with the materials used in the installation. 1. The bottom flow of the solution must be compatible with the final cover material, and the materials used for temporary and protective use in the pipe must be compatible with the final material.
4.2 Surface treatment of the steel pipe
4.2.1 Before surface treatment, the steel pipe must be free of foreign matter, rust, and hair, weld nodules, lubricants, and wood particles. 4.2.2 Before coating, the steel pipe must be machine-cleaned or sandblasted to remove rust, rust, and dirt.
4.2.3 It is strictly forbidden to use mechanical equipment or tools that can produce hair or damage to the steel pipe.
4.2.4 For the steel pipe that has been coated, the coating must be dried to remove all moisture, dirt, and dirt on the surface.
42.5 It is strictly forbidden to use the coating machine that can be used as a coating machine. 4.3 Surface pretreatment before coating in the factory
4.3.1 The surface of the steel pipe shall be subject to the rust removal level provided by the design unit according to the technical standards of the specific coating pressure, and shall comply with the provisions of GB8923. The rust removal level of the general coating layer shall not be lower than the industrial grade S.2
4.3.2 The steel pipe after rust removal must be dried and cleaned. 4.3.3 If primer is used, it must be removed within 5 minutes after surface pretreatment. 4.3.4 For surface pretreatment of on-site patching and rust removal, see Sections 6 and 7. 5 Coating and testing
5.1 Coating
5.1.1 The selection of the coating material shall comply with the provisions of the relevant standards. 5.1.2 The coating method of the coating layer shall comply with the requirements of the relevant standards. 5.2 Inspection
5.2.1 After the repair, the pre-salt layer must be inspected. The inspection items include appearance, structure, thickness, strength and defects. Any defects found during the inspection shall be repaired in accordance with the provisions of Chapter 7.
5.2.2 The inspection methods for the above items shall comply with the relevant standards. 6 On-site patching
6.1 General
6.1.1 The section of the pre-salt layer connected by welding or machine polishing such as welding must be patched on site. The quality of the on-site patching layer shall not be lower than that of the pre-salt layer of the steel pipe. 6.2 Pre-treatment
6.2.1 When removing the original layer at the patching site, care must be taken to avoid damage to the adjacent covering layer. The edge of the thick layer should be cut off. If there is an external tape, it should be removed for a long enough time to ensure that the entire layer is firmly bonded to the original layer. 6.2.2 The surface of the boiler tube at the patching point must be cleaned with a burr remover to remove all dirt and grease. All dust, dirt, rust, rolled hooks, corroded skin, loose short covers, failed bottom readings, good light, welding scars and burrs should be removed with tools such as steel wire. No marks,
6.5 Materials
6.3.1 If a bottom filter is required, it should be applied evenly, and the specifications and curing time should be determined according to the relevant blue layer standards.
6.3.2 The cover material used for the existing scale patching must be compatible with the steel pipe and not lower than the quality of the steel cover.
6.3.3 The cover material must ensure that there is no air gap, no bulging, no air entrapment, etc. when applying. For irregular pipe fittings such as doors, cover materials that are suitable for their shapes should be used.
6.3.4 The new layer must be in contact with the original material, and the width must meet the requirements of the original cover layer. 7 Repair of cover layer defects
7.0.1 When repairing, the remaining cover layer should be intact and bonded to the substrate. The defective area should be cut to increase the strength of the repair. 7.0.2 The materials in the repair area must be removed immediately. 1.0.3 If the base coat is to be applied at the repair site, the base coat must be properly dry before applying the base coat material.
1.0.4 The repair material used must be bonded to the original section and not be of low quality.
8 Handling and installation of steel pipes with covering layer
8.1 General provisions
8.1.7 The handling and installation methods adopted should minimize the damage to the covering layer. 8.2 Lifting equipment
8.2.1 Use equipment that is not harmful to the entire layer. 8.2.2 The belt hoist must have a certain width and must not have protruding brackets or bolts to avoid damaging the covering layer.
8.2.3 The whole wood and pipe rack must have a certain width and be added to prevent the covering layer from being damaged. At the same time, the cushions and pipes should be arranged reasonably so that the steel pipes with covering layer are pressed on the full width of their supporting surface.
8.3 Storage and transportation
8.3.1 Double covering layers can be stacked in an overlapping manner to ensure that the covering layers of adjacent steel pipes are evenly stressed over the entire width. Otherwise, additional cushions should be added. It is strictly forbidden to place them too high. 8.3.2 During transportation, the fixing device used should not damage the cover layer, steel pipe or radiator 8.4 Installation
8.4.! The steel pipes for the cover layer that are not immediately put into the trench should be properly cushioned to prevent the cover layer from being pushed. 8.4.2 Before the steel pipe is put into the trench: the debris that can damage the cover layer must be cleared from the bottom of the trench. 8.4.3 When the steel pipe is put into the trench, the operation must be careful to prevent the pipe from being hit or abraded by the trench edge. If the absorbent layer is damaged, it must be repaired according to the provisions of Chapter 7. 8.4.4 When backfilling, it must be done carefully to prevent rocks, mud or similar objects from being thrown into the trench to protect the cover layer. To prevent such damage, padding or protective materials may be used. 1. Explanation of terms used in this standard. The terms used in this standard to describe the degree of strictness are as follows to distinguish between the following during implementation: 1. Words that indicate strictness and that it is necessary to do so: positive words use "must", negative words use "strictly prohibited"; 2. Words that indicate strictness and that it should be done in normal circumstances use "positive" for positive words, and "should not" or "must not" for negative words; 3. Words that indicate that there is a choice and that it should be done first when conditions permit use "should" or "may" for positive words, and "should not" for negative words; 4. Words that indicate that it is allowed to choose and that it should be done first when conditions permit use "should" or "may" for positive words, and "should not" for negative words. Additional notes: This standard adopts the National Acute Protective Equipment Association (NACE) standard. RP-02-15 "Recommended practice for coating the outer wall of buried steel pipelines with organic coatings" Standard H
Standard of the Petroleum and Natural Gas Industry of the People's Republic of China Technical regulations for coating the outer wall of buried steel pipelines with organic coatings
SY 0061-82
1991 Beijing
Standard of the Petroleum and Natural Gas Industry of the People's Republic of China Technical regulations for coating the outer wall of buried steel pipelines with organic coatings
5Y 0061--92
Article explanation
Petroleum Industry Publishing House
1991-Beijing
Formulation explanation
This standard is prepared by our institute based on the notice of China Petroleum and Natural Gas General Consultation (90) CNPC Science No. 53.
During the preparation process, we have solicited the opinions of the oilfield construction and management departments, and coordinated with the current anti-separation construction acceptance specifications. In the process of implementing this standard, if there are any changes or additions that need to be made, please send us the relevant information and materials for future reference. Daqing Petroleum Administration Bureau Oilfield Construction Design Institute October 1991
1 General Principles
3 Material Management
4 Surface Treatment
6 On-site Patching
Transportation and Installation of Layered Steel Pipes
(6)1 Such materials include heat shrinkable field patching materials and factory-limited folded molded jackets. The latter are used in the following ways:
3.1.2 The materials must be stored in unopened original containers and dried in a dry place. 4 Surface preparation
4.1 Surface conditions
4.1.1 The purchased steel pipes must be accompanied by instructions for the use of protective oil, porcelain or cleaning agents and the method of removal.
4.1.2 The materials used for identification must be compatible with the materials used in the installation.
1. The bottom flow of the factory must be compatible with the final cover material, and the materials used for the protection of the pipe must be compatible with the final material.
4.2 Surface treatment of the steel pipe
4.2.1 Before surface treatment, the steel pipe must be free of foreign matter, rust, and hair, weld nodules, lubricants, and wood particles. 4.2.2 Before coating, the steel pipe must be machine-cleaned or sandblasted to remove rust, rust, and dirt.
4.2.3 It is strictly forbidden to use mechanical equipment or tools that can produce hair or damage to the steel pipe.
4.2.4 For the steel pipe that has been coated, the coating must be dried to remove all moisture, dirt, and dirt on the surface.
42.5 It is strictly forbidden to use the coating machine that can be used as a coating machine. 4.3 Surface pretreatment before coating in the factory
4.3.1 The surface of the steel pipe shall be subject to the rust removal level provided by the design unit according to the technical standards of the specific coating pressure, and shall comply with the provisions of GB8923. The rust removal level of the general coating layer shall not be lower than the industrial grade S.2
4.3.2 The steel pipe after rust removal must be dried and cleaned. 4.3.3 If primer is used, it must be removed within 5 minutes after surface pretreatment. 4.3.4 For surface pretreatment of on-site patching and rust removal, see Sections 6 and 7. 5 Coating and testing
5.1 Coating
5.1.1 The selection of the coating material shall comply with the provisions of the relevant standards. 5.1.2 The coating method of the coating layer shall comply with the requirements of the relevant standards. 5.2 Inspection
5.2.1 After the repair, the pre-salt layer must be inspected. The inspection items include appearance, structure, thickness, strength and defects. Any defects found during the inspection shall be repaired in accordance with the provisions of Chapter 7.
5.2.2 The inspection methods for the above items shall comply with the relevant standards. 6 On-site patching
6.1 General
6.1.1 The section of the pre-salt layer connected by welding or machine polishing such as welding must be patched on site. The quality of the on-site patching layer shall not be lower than that of the pre-salt layer of the steel pipe. 6.2 Pre-treatment
6.2.1 When removing the original layer at the patching site, care must be taken to avoid damage to the adjacent covering layer. The edge of the thick layer should be cut off. If there is an external tape, it should be removed for a long enough time to ensure that the entire layer is firmly bonded to the original layer. 6.2.2 The surface of the boiler tube at the patching point must be cleaned with a burr remover to remove all dirt and grease. All dust, dirt, rust, rolled hooks, corroded skin, loose short covers, failed bottom readings, good light, welding scars and burrs should be removed with tools such as steel wire. No marks,
6.5 Materials
6.3.1 If a bottom filter is required, it should be applied evenly, and the specifications and curing time should be determined according to the relevant blue layer standards.
6.3.2 The cover material used for the existing scale patching must be compatible with the steel pipe and not lower than the quality of the steel cover.
6.3.3 The cover material must ensure that there is no air gap, no bulging, no air entrapment, etc. when applying. For irregular pipe fittings such as doors, cover materials that are suitable for their shapes should be used.
6.3.4 The new layer must be in contact with the original material, and the width must meet the requirements of the original cover layer. 7 Repair of cover layer defects
7.0.1 When repairing, the remaining cover layer should be intact and bonded to the substrate. The defective area should be cut to increase the strength of the repair. 7.0.2 The materials in the repair area must be removed immediately. 1.0.3 If the base coat is to be applied at the repair site, the base coat must be properly dry before applying the base coat material.
1.0.4 The repair material used must be bonded to the original section and not be of low quality.
8 Handling and installation of steel pipes with covering layer
8.1 General provisions
8.1.7 The handling and installation methods adopted should minimize the damage to the covering layer. 8.2 Lifting equipment
8.2.1 Use equipment that is not harmful to the entire layer. 8.2.2 The belt hoist must have a certain width and must not have protruding brackets or bolts to avoid damaging the covering layer.
8.2.3 The whole wood and pipe rack must have a certain width and be added to prevent the covering layer from being damaged. At the same time, the cushions and pipes should be arranged reasonably so that the steel pipes with covering layer are pressed on the full width of their supporting surface.
8.3 Storage and transportation
8.3.1 Double covering layers can be stacked in an overlapping manner to ensure that the covering layers of adjacent steel pipes are evenly stressed over the entire width. Otherwise, additional cushions should be added. It is strictly forbidden to place them too high. 8.3.2 During transportation, the fixing device used should not damage the cover layer, steel pipe or radiator 8.4 Installation
8.4.! The steel pipes for the cover layer that are not immediately put into the trench should be properly cushioned to prevent the cover layer from being pushed. 8.4.2 Before the steel pipe is put into the trench: the debris that can damage the cover layer must be cleared from the bottom of the trench. 8.4.3 When the steel pipe is put into the trench, the operation must be careful to prevent the pipe from being hit or abraded by the trench edge. If the absorbent layer is damaged, it must be repaired according to the provisions of Chapter 7. 8.4.4 When backfilling, it must be done carefully to prevent rocks, mud or similar objects from being thrown into the trench to protect the cover layer. To prevent such damage, padding or protective materials may be used. 1. Explanation of terms used in this standard. The terms used in this standard to describe the degree of strictness are as follows to distinguish between the following during implementation: 1. Words that indicate strictness and that it is necessary to do so: positive words use "must", negative words use "strictly prohibited"; 2. Words that indicate strictness and that it should be done in normal circumstances use "positive" for positive words, and "should not" or "must not" for negative words; 3. Words that indicate that there is a choice and that it should be done first when conditions permit use "should" or "may" for positive words, and "should not" for negative words; 4. Words that indicate that it is allowed to choose and that it should be done first when conditions permit use "should" or "may" for positive words, and "should not" for negative words. Additional notes: This standard adopts the National Acute Protective Equipment Association (NACE) standard. RP-02-15 "Recommended practice for coating the outer wall of buried steel pipelines with organic coatings" Standard H
Standard of the Petroleum and Natural Gas Industry of the People's Republic of China Technical regulations for coating the outer wall of buried steel pipelines with organic coatings
SY 0061-82
1991 Beijing
Standard of the Petroleum and Natural Gas Industry of the People's Republic of China Technical regulations for coating the outer wall of buried steel pipelines with organic coatings
5Y 0061--92
Article explanation
Petroleum Industry Publishing House
1991-Beijing
Formulation explanation
This standard is prepared by our institute based on the notice of China Petroleum and Natural Gas General Consultation (90) CNPC Science No. 53.
During the preparation process, we have solicited the opinions of the oilfield construction and management departments, and coordinated with the current anti-separation construction acceptance specifications. In the process of implementing this standard, if there are any changes or additions that need to be made, please send us the relevant information and materials for future reference. Daqing Petroleum Administration Bureau Oilfield Construction Design Institute October 1991
1 General Principles
3 Material Management
4 Surface Treatment
6 On-site Patching
Transportation and Installation of Layered Steel Pipes
(6)1 Such materials include heat shrinkable field patching materials and factory-limited folded molded jackets. The latter are used in the following ways:
3.1.2 The materials must be stored in unopened original containers and dried in a dry place. 4 Surface preparation
4.1 Surface conditions
4.1.1 The purchased steel pipes must be accompanied by instructions for the use of protective oil, porcelain or cleaning agents and the method of removal.
4.1.2 The materials used for identification must be compatible with the materials used in the installation.
1. The bottom flow of the factory must be compatible with the final cover material, and the materials used for the protection of the pipe must be compatible with the final material.
4.2 Surface treatment of the steel pipe
4.2.1 Before surface treatment, the steel pipe must be free of foreign matter, rust, and hair, weld nodules, lubricants, and wood particles. 4.2.2 Before coating, the steel pipe must be machine-cleaned or sandblasted to remove rust, rust, and dirt.
4.2.3 It is strictly forbidden to use mechanical equipment or tools that can produce hair or damage to the steel pipe.
4.2.4 For the steel pipe that has been coated, the coating must be dried to remove all moisture, dirt, and dirt on the surface.
42.5 It is strictly forbidden to use the coating machine that can be used as a coating machine. 4.3 Surface pretreatment before coating in the factory
4.3.1 The surface of the steel pipe shall be subject to the rust removal level provided by the design unit according to the technical standards of the specific coating pressure, and shall comply with the provisions of GB8923. The rust removal level of the general coating layer shall not be lower than the industrial grade S.2
4.3.2 The steel pipe after rust removal must be dried and cleaned. 4.3.3 If primer is used, it must be removed within 5 minutes after surface pretreatment. 4.3.4 For surface pretreatment of on-site patching and rust removal, see Sections 6 and 7. 5 Coating and testing
5.1 Coating
5.1.1 The selection of the coating material shall comply with the provisions of the relevant standards. 5.1.2 The coating method of the coating layer shall comply with the requirements of the relevant standards. 5.2 Inspection
5.2.1 After the repair, the pre-salt layer must be inspected. The inspection items include appearance, structure, thickness, strength and defects. Any defects found during the inspection shall be repaired in accordance with the provisions of Chapter 7.
5.2.2 The inspection methods for the above items shall comply with the relevant standards. 6 On-site patching
6.1 General
6.1.1 The section of the pre-salt layer connected by welding or machine polishing such as welding must be patched on site. The quality of the on-site patching layer shall not be lower than that of the pre-salt layer of the steel pipe. 6.2 Pre-treatment
6.2.1 When removing the original layer at the patching site, care must be taken to avoid damage to the adjacent covering layer. The edge of the thick layer should be cut off. If there is an external tape, it should be removed for a long enough time to ensure that the entire layer is firmly bonded to the original layer. 6.2.2 The surface of the boiler tube at the patching point must be cleaned with a burr remover to remove all dirt and grease. All dust, dirt, rust, rolled hooks, corroded skin, loose short covers, failed bottom readings, good light, welding scars and burrs should be removed with tools such as steel wire. No marks,
6.5 Materials
6.3.1 If a bottom filter is required, it should be applied evenly, and the specifications and curing time should be determined according to the relevant blue layer standards.
6.3.2 The cover material used for the existing scale patching must be compatible with the steel pipe and not lower than the quality of the steel cover.
6.3.3 The cover material must ensure that there is no air gap, no bulging, no air entrapment, etc. when applying. For irregular pipe fittings such as doors, cover materials that are suitable for their shapes should be used.
6.3.4 The new layer must be in contact with the original material, and the width must meet the requirements of the original cover layer. 7 Repair of cover layer defects
7.0.1 When repairing, the remaining cover layer should be intact and bonded to the substrate. The defective area should be cut to increase the strength of the repair. 7.0.2 The materials in the repair area must be removed immediately. 1.0.3 If the base coat is to be applied at the repair site, the base coat must be properly dry before applying the base coat material.
1.0.4 The repair material used must be bonded to the original section and not be of low quality.
8 Handling and installation of steel pipes with covering layer
8.1 General provisions
8.1.7 The handling and installation methods adopted should minimize the damage to the covering layer. 8.2 Lifting equipment
8.2.1 Use equipment that is not harmful to the entire layer. 8.2.2 The belt hoist must have a certain width and must not have protruding brackets or bolts to avoid damaging the covering layer.
8.2.3 The whole wood and pipe rack must have a certain width and be added to prevent the covering layer from being damaged. At the same time, the cushions and pipes should be arranged reasonably so that the steel pipes with covering layer are pressed on the full width of their supporting surface.
8.3 Storage and transportation
8.3.1 Double covering layers can be stacked in an overlapping manner to ensure that the covering layers of adjacent steel pipes are evenly stressed over the entire width. Otherwise, additional cushions should be added. It is strictly forbidden to place them too high. 8.3.2 During transportation, the fixing device used should not damage the cover layer, steel pipe or radiator 8.4 Installation
8.4.! The steel pipes for the cover layer that are not immediately put into the trench should be properly cushioned to prevent the cover layer from being pushed. 8.4.2 Before the steel pipe is put into the trench: the debris that can damage the cover layer must be cleared from the bottom of the trench. 8.4.3 When the steel pipe is put into the trench, the operation must be careful to prevent the pipe from being hit or abraded by the trench edge. If the absorbent layer is damaged, it must be repaired according to the provisions of Chapter 7. 8.4.4 When backfilling, it must be done carefully to prevent rocks, mud or similar objects from being thrown into the trench to protect the cover layer. To prevent such damage, padding or protective materials may be used. 1. Explanation of terms used in this standard. The terms used in this standard to describe the degree of strictness are as follows to distinguish between the following during implementation: 1. Words that indicate strictness and that it is necessary to do so: positive words use "must", negative words use "strictly prohibited"; 2. Words that indicate strictness and that it should be done in normal circumstances use "positive" for positive words, and "should not" or "must not" for negative words; 3. Words that indicate that there is a choice and that it should be done first when conditions permit use "should" or "may" for positive words, and "should not" for negative words; 4. Words that indicate that it is allowed to choose and that it should be done first when conditions permit use "should" or "may" for positive words, and "should not" for negative words. Additional notes: This standard adopts the National Acute Protective Equipment Association (NACE) standard. RP-02-15 "Recommended practice for coating the outer wall of buried steel pipelines with organic coatings" Standard H
Standard of the Petroleum and Natural Gas Industry of the People's Republic of China Technical regulations for coating the outer wall of buried steel pipelines with organic coatings
SY 0061-82
1991 Beijing
Standard of the Petroleum and Natural Gas Industry of the People's Republic of China Technical regulations for coating the outer wall of buried steel pipelines with organic coatings
5Y 0061--92
Article explanation
Petroleum Industry Publishing House
1991-Beijing
Formulation explanation
This standard is prepared by our institute based on the notice of China Petroleum and Natural Gas General Consultation (90) CNPC Science No. 53.
During the preparation process, we have solicited the opinions of the oilfield construction and management departments, and coordinated with the current anti-separation construction acceptance specifications. In the process of implementing this standard, if there are any changes or additions that need to be made, please send us the relevant information and materials for future reference. Daqing Petroleum Administration Bureau Oilfield Construction Design Institute October 1991
1 General Principles
3 Material Management
4 Surface Treatment
6 On-site Patching
Transportation and Installation of Layered Steel Pipes
(6)3 It is strictly forbidden to use mechanical equipment or tools that can produce hair or damage to the pipe.
4.2.4 For the pipes that have been primed, the coating must be dried and all moisture, dust and dirt on the surface must be removed.
42.5 It is strictly forbidden to use the coating machinery that can be used as a coating machine. 4.3 Surface pretreatment before painting in the factory
4.3.1 The rust removal level of the steel pipe surface shall be provided by the design unit according to the technical standards of the specific coating pressure, and shall comply with the provisions of GB8923. The rust removal level of the general coating layer shall not be lower than the industrial grade S.2
4.3.2 The steel pipe after rust removal must be dried and cleaned. 4.3.3 If primer is used, it must be removed within 5 minutes after surface pretreatment. 4.3.4 For the surface pretreatment of on-site patching and repair, see Chapters 6 and 7. 5. Coating and testing
5.1 Coating number
5.1.1 The selection of covering layer materials shall comply with the provisions of relevant standards. 5.1.2 The coating method of the covering layer shall comply with the requirements of relevant standards. 5.2 Testing
5.2.1 After repair, the pre-salting layer must be inspected. The inspection items include appearance, structure, thickness, cohesion and defects. Any defects found during inspection shall be repaired in accordance with the provisions of Chapter 7.
5.2.2 The inspection methods of the above items shall comply with relevant standards. 6 On-site repair
6.1 General
6.1.1 The section of the interlayer connected by welding or machine polishing such as welding must be repaired on-site. The quality of the on-site repaired cover layer shall not be lower than that of the steel pipe. 6.2 Pretreatment of the installation
6.2.1 When removing the original layer at the patch, care must be taken to avoid damage to the adjacent covering layer. The edge of the thick layer should be cut. If there is an external tape, a sufficient length of tape should be removed to ensure that the entire layer is firmly bonded to the original layer. 6.2.2 The surface of the boiler tube at the patch must be cleaned with a burr remover to remove all dirt and grease. All dust, dirt, rust, rolled skin, loose short cover eyebrows, failed bottom readings, good light, welding scars and burrs should be removed with tools such as steel wire. No marks or stains should be made on the visible surface
6.5 Materials
6.3.1 If a primer is required, it should be applied evenly and the time and curing time should be determined according to the relevant blue layer standards.
6.3.2 The cover material used for the existing filler must be compatible with the steel pipe and not lower than the quality of the steel cover.
6.3.3 The cover material must ensure that there is no void, no air trap, no irregular pipe shape, etc. when applying. The cover material should be suitable for its shape.
6.3.4 The new layer must be in line with the original material. The width must meet the requirements of the original cover. 7 Repair of cover defects
7.0.1 When repairing, it is necessary to carefully remove enough cover from the defective part of the pipe. The remaining cover should be intact and solid with the base material. The edge of the defect should be cut to increase the repair strength. 7.0.2 The debris in the repair area must be removed immediately. 1.0.3 If primer is to be applied at the repaired area, the primer must be properly dried before applying the cover material.
1.0.4 The repair material used must be able to be firmly bonded to the original section and not be of low quality.
8 Handling and installation of the cover steel pipe
8.1 General provisions
8.1.7 The handling and installation methods adopted should minimize the damage to the cover layer. 8.2 Lifting equipment
8.2.1 Strictly use equipment that is not harmful to the entire layer. 8.2.2 The belt hoist must have a certain width and must not have protruding bolts or bolts to avoid damaging the cover layer.
8.2.3 The whole wood and pipe rack must have a certain width and be added to prevent damage to the cover layer. At the same time, the pads and pipes should be arranged reasonably, and the cover steel pipes should be pressed on the full width of their support surface.
8.3 Storage and transportation
8.3.1 Double cover layers can be stacked to ensure that the cover layers of adjacent steel pipes are evenly stressed over the entire length. Otherwise, additional padding should be added. It is strictly forbidden to place them too high. 8.3.2 During transportation, the fixing device used should not damage the cover layer, steel pipe or radiator. 8.4 Installation
8.4.! The steel pipes of the cover layer that are not immediately put into the trench should be properly padded to prevent the cover layer from being pushed and damaged. 8.4.2 Before the steel pipe is put into the trench, the debris that may damage the cover layer must be cleared from the trench bottom. 8.4.3 When the steel pipe is put into the trench, the operation must be careful to prevent the pipe from being hit or abraded by the trench edge. If the absorbent layer is damaged, it must be repaired according to the provisions of Chapter 7. 8.4.4 When backfilling, the operation must be careful to prevent rocks, mud or similar objects from being used to protect the cover layer. To prevent such damage, padding or protective materials may be used. 1. Explanation of terms used in this standard. The terms used in this standard to describe the degree of strictness are as follows to distinguish between the following during implementation: 1. Words that indicate strictness and that it is necessary to do so: positive words use "must", negative words use "strictly prohibited"; 2. Words that indicate strictness and that it should be done in normal circumstances use "positive" for positive words, and "should not" or "must not" for negative words; 3. Words that indicate that there is a choice and that it should be done first when conditions permit use "should" or "may" for positive words, and "should not" for negative words; 4. Words that indicate that it is allowed to choose and that it should be done first when conditions permit use "should" or "may" for positive words, and "should not" for negative words. Additional notes: This standard adopts the National Acute Protective Equipment Association (NACE) standard. RP-02-15 "Recommended practice for coating the outer wall of buried steel pipelines with organic coatings" Standard H
Standard of the Petroleum and Natural Gas Industry of the People's Republic of China Technical regulations for coating the outer wall of buried steel pipelines with organic coatings
SY 0061-82
1991 Beijing
Standard of the Petroleum and Natural Gas Industry of the People's Republic of China Technical regulations for coating the outer wall of buried steel pipelines with organic coatings
5Y 0061--92
Article explanation
Petroleum Industry Publishing House
1991-Beijing
Formulation explanation
This standard is prepared by our institute based on the notice of China Petroleum and Natural Gas General Consultation (90) CNPC Science No. 53.
During the preparation process, we have solicited the opinions of the oilfield construction and management departments, and coordinated with the current anti-separation construction acceptance specifications. In the process of implementing this standard, if there are any changes or additions that need to be made, please send us the relevant information and materials for future reference. Daqing Petroleum Administration Bureau Oilfield Construction Design Institute October 1991
1 General Principles
3 Material Management
4 Surface Treatment
6 On-site Patching
Transportation and Installation of Layered Steel Pipes
(6)3 It is strictly forbidden to use mechanical equipment or tools that can produce hair or damage to the pipe.
4.2.4 For the pipes that have been primed, the coating must be dried and all moisture, dust and dirt on the surface must be removed. ||tt|
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