Some standard content:
SY/T 0523—93 Oilfield water treatment filter Standard of the People's Republic of China Petroleum and Natural Gas Industry
Published on September 9, 1993
China National Petroleum Corporation
Implemented on March 1, 1994
1 Subject content and applicable range
Oilfield water treatment filter Standard of the People's Republic of China Petroleum and Natural Gas Industry
This standard specifies the classification, technical requirements, test methods and inspection rules of oilfield water treatment filters. $Y/T 0523—93
This standard applies to oilfield water treatment filters (hereinafter referred to as filters) with a design pressure not exceeding 1MPa, a design temperature below 80℃, and an inlet water quality that meets the requirements of Table 1.
Note: The oil pan of the clean water filter is zero,
2 Reference standards
GB 150
GB 3323
GB 11345
IB 2536
SY5329
GB 9795
GB 9797
GB 8923
Steel pressure vessels
Radiography and quality classification of steel fusion welded butt jointsManual ultrasonic flaw detection methods and flaw detection results for steel weldsGrading of pressure vesselsPainting, packaging and transportation
Recommended indicators and analysis methods for water quality of clastic rock reservoirsThermal spraying of aluminum and aluminum alloy coatings
Metallic covering layer of chrome + chromium and copper + nickel + chromium electroplating layerRust grade and rust removal grade of steel surface before paintingCJ 24.1
Quartz sand filter media for water treatment
Anthracite filter media for water treatment
CJ24.3Magnetite filter media for water treatment
CJ24.4Manganese sand filter media for water treatment
3Terms
Sewage: Pre-treated oilfield produced water (suspended solid content ≤50mg/L, oil content ≤100mg/L). Filter: Water treatment equipment that uses filtration to reduce the oil content and suspended solid content of oilfield injection water. Filter media regeneration: The process of cleaning the filter media with a medium (water, air or activator, etc.) to restore the filter media to normal filtering performance. 4Product classification
4.1Main parameters
4.1.1Rated processing capacity: 5, 15, 30, 60, 100, 150, 200m/m. Approved by China National Petroleum Corporation on September 9, 1993 and implemented on March 1, 1994
Design pressure: 0.4, 0.6, 1.0MPa. 4.1.2
Water quality indicators after filtration are shown in Table 2.
Suspended solid content
SY/T 0523--93
Particle diameter
Note: ①The volume of particles with the diameter listed in the table must account for more than 80% of the total particle volume. ②The oil content of clean water is zero
4.2 Product classification and code
Classification by medium
The code for clean water filter is Q, and the code for sewage filter is W. 4.2.2 Classification by operation mode
The code for white filter is A, and the code for manual filter is B. 4.2.3 Classification by filtration stage
Divided into single-stage, two-stage and multi-stage filters, code 1, 2, model representation method
Product design serial number (0, 1, 2, ... n) is omitted when it is the first (
Number of stages, omitted when it is single-stage (1)
Main parameter code: The left side is the rated processing capacity, and the right side is the design pressure
Operation mode, omitted when it is manual (B)
Filter medium, omitted when it is clean water (Q)
Filter code
Example: Rated processing capacity is 150m\/h, design pressure is 0.6MPa, filter medium is sewage, self Dynamic operation, 2-stage filtration, second-design filter, expressed as:
5 Technical requirements
5.1 Basic requirements
GLWA150/0.6—2—1
Filter products shall comply with the requirements of this standard and be manufactured in accordance with the drawings and technical documents approved through the prescribed procedures. 5.2 Materials
5.2.1 The steel and welding materials used for pressure components of containers shall comply with the relevant requirements of the materials section in GB150. 5.2.2 The materials used for other parts shall comply with the requirements of the drawings. 5.2.3 Material substitution must be approved through the prescribed procedures. 2
5.3 Welding
SY/T 0523-93
6.3.1 The weld shall not have cracks, burn-through, arc pits, slag inclusions and incomplete penetration. 5.3.2 The undercut depth of the weld shall not exceed 0.5 mm, the continuous length of the undercut shall not exceed 100 mm, and the total length of the undercut on both sides of the weld shall not exceed 10% of the length of the weld. Slag and spatter must be removed. 5.3.3 The fillet weld shall have a smooth transition to the parent material geometry. 5.3, 4 Sealing and rounding Each of the connected circumferential welds, the longitudinal welds of the cylinder and all the butt welds of the head shall be subjected to 20% (but not less than 250mm) radiographic or ultrasonic flaw detection inspection, which shall meet the requirements of Grade I in GB3323 or Grade II in GB11345 respectively. 5.3.5 The welds covered by reinforcing rings, supports, pads, internal parts, etc. shall be subjected to 100% radiographic or ultrasonic flaw detection inspection, which shall meet the requirements of Grade I or Grade II in GB3323 respectively. GB11345 Grade I requirements. 5.3.6 During the flaw detection inspection, if any unacceptable defects are found, the inspection length should be increased at the extension of the two ends of the defect. The increased length is 10% of the crack length and not less than 2501m. If there are still unacceptable defects, the crack should be 100% flaw detection inspection. The defective parts are allowed to be repaired, but the same part shall not be repaired more than twice. After repair, the flaw detection inspection shall be repeated. 5.4 Head, round tube and manifold
5.4.1 Head
5.4.1.1 It is recommended to use a standard elliptical head with a long-short axis ratio of 2. If necessary, a conical head or other type of head can also be used. 5.4.1.2 When the head is made of petals and top return plates, the weld direction is only allowed to be radial and circumferential, and the minimum distance between radial welds should be not less than 3 times the nominal plate thickness (5) and not less than 100mm. As shown in the figure. 5.4.2 Round cylinder
5.4.2.1 After the cylinder is formed, the difference between the maximum and minimum inner diameters on a section shall not exceed 1% of the designed inner diameter of the round cylinder, and shall not exceed 25mm. 5.4.2.2 The opening and reinforcement of the round cylinder shall comply with the relevant provisions of GB 160. 5.4.3 The misalignment of the circumferential welds connecting the head and the cylinder, the longitudinal welds of the round cylinder, and all the joint welds of the head, etc., shall not exceed 3mm1. 5.4.4: Manifold
30100)
The flange surface shall be perpendicular to the main axis centerline of the pipe or cylinder, and its deviation shall not exceed 1% of the outer diameter of the flange, and shall not exceed 3mm. 5.5 Anti-brain
5.5.1 The surfaces of the medulla and manifold that are directly in contact with the filter medium, all of which are made of carbon steel and low alloy steel, shall be treated with anti-corrosion. 5.5.2 When the inner surface of the relay body is sprayed with a metal coating, the surface treatment and spraying requirements of the substrate shall comply with the relevant provisions of GB9795.
5.5.3 The minimum thickness of the sprayed metal coating is 0.2~0.3mm: and the appearance quality, bonding performance and coating density shall comply with the relevant provisions of GB9795.
5.5.4 The sprayed metal coating shall have sufficient corrosion resistance. When rated according to the accelerated corrosion test provisions in Table 6 of GB9797, the rating shall be above level 8 (corrosion rate is 0.25%~0.5%). 5.5.5 When the inner surface cannot be sprayed with a metal coating, non-metallic anti-corrosion coatings can be brushed or sprayed. The rust removal quality of the steel surface before brushing shall comply with the provisions of St2 level in GB8923. When brushing (spraying) coating, the coating thickness shall be uniform without missing coating and sagging. Sufficient drying time shall be given after coating, and its quality shall comply with the provisions of the corresponding standards. 5.6 Materials
5.6.1 Selection requirements
5.6.1.1 The types and specifications of filter materials shall be selected according to the specified import and export quality indicators. 5.6.1.2 The filter materials shall have high strength, few impurities, stable performance, good quality, bright color, and meet the relevant national standards. 5.6.1.3 On the premise of meeting the water quality indicators after filtration, economical and durable filter materials shall be preferred. 5.6.1.4 The particle size qualification rate of filter materials (except fiber balls) shall be greater than 95%. 3
SY/T 0523—--93
5.6.1.5 The number of filter materials filled in the filter shall meet the design requirements. 5.6.2 Fiber balls
5.6.2.1 The fiber balls are made of 2D or 3D polyester yarn, and the binding wire is 0.5mI nylon yarn or vinylon yarn. 5.6.2.2 The fiber balls must be tied firmly in a double-disk shape and have a radioactive spherical shape with a diameter of 25~~28mm. 5.6.2.3 110 to 120 fiber balls should be made for every 50g of polyester yarn. 5.6.2.4 No fiber should be present at the sheared part of the fiber ball surface. 5.6.2.5 The breaking strength of polyester yarn should be within the range of 61.8×10-3 to 8B.3×10-3N/D in dry and wet conditions. Note: D (D) is a special unit for the textile industry to indicate the volume of cotton yarn or fiber yarn. The weight of cotton yarn or fiber yarn with a length of 9km spun from 1g of raw material is 1D.
5.6.3 Walnut shell filter material
5.6.3.1 The material is thick-skinned walnut shell.
5.6.3.2 The density is 1.3~~1.4g/cm2. The particle size specifications are selected according to Table 3.
Specification number
The particle size qualification rate should be greater than 95%.
5.6.3.5 The crust rate should be no more than 0.3%, and the impurity rate should be no more than 0.3%. 5.6.3.6 The geometric shape of the filter material should have no sharp corners and edges. 5.6.3.7 The filter material should be fresh in color and free of rot and deterioration spots. 5.6.4 Other filter materials
Quartz sand, anthracite, manganese sand, and magnetite filter materials should comply with the provisions of CJ24,1~~24,4. For other main indicators, see Appendix A (reference part).
5.7 Other parts
5.1 The water collection and distribution system should have sufficient strength, and the water collection and distribution should be uniform. 5.7.2 The support frame should have sufficient strength and should not produce abnormal deformation when subjected to design requirements. 5.7.3 When selecting a pump, it should be selected according to the design pressure, rated processing capacity, and medium passing through, and strive to be reasonable, economical, and durable. 5.7.4 Each valve should open and close flexibly and work properly, and a flow meter should be installed on the inlet or outlet pipeline. 5.7.5
Liquid, gas and circuit pipelines should be reasonably laid out and firmly fixed to facilitate loading, unloading and maintenance. 5.7.6 The instruments and control components on the control box should have stable performance and reliable quality. 5.8 The whole machine
All parts are connected correctly and firmly, the moving parts are lubricated normally, the rotation is flexible and there is no abnormal sound. The components of the automatic filter are accurate and reliable. 5.8.2
The filter should be pressure tested in accordance with the provisions of Article 1.9 of GB150. 5.8.33
The pressure, temperature, rated processing capacity and the accuracy of the filtered water quality of the filter should meet the design requirements. 5.8.4
For filters using a stirring mechanism, the stirring mechanism should operate in a positive belt, the filter material should be turned over moderately and stirred evenly. 5.8.6
For filters using backwash pumps, the pumps shall operate normally and have sufficient backwashing capacity. In normal filtering and backwashing operation, there shall be no leakage of filter media. 5.8.7
The quality of the paint on the external surface shall comply with the relevant provisions of JB2536. 4
6 Test method
6.1 Pressure test
6.1.1 Test medium: water (except seawater) 6.1.2 Test pressure: 1.25 times the design pressure. 6.1.3 Test medium temperature: within 80°C. 6.1.4 The test procedure is as follows:
SY/T 0523-93
a. Carry out the test in accordance with the provisions of Article 10.9.4.4 of GB150 b. After the test, the water shall be drained and the tank shall be emptied with compressed air. 6.2 Filtration-backwash process test
6.2.1 Filtration process test
6.2.1.1 Test conditionsbZxz.net
The test is carried out in the factory according to the pressure, temperature, rated processing capacity, filter medium (sewage or clean water), filter material quantity, etc. specified in the design. 6.2.1.2 Test procedure
a. Open and close the relevant valves, and guide the equipment into the filtration process to run, and check whether the process is correct and unobstructed, and whether the filter material is lost. b. The running time is 30min
The automatic filter should test the accuracy and sensitivity of the action of each component on the control box. 6.2.2 Backwash process test
6.2.2.1 Test conditions
, the filtration process test is qualified:
b. The test pressure, temperature, filter material and filter medium are the same as those of the filtration process test. 6.2.2.2 Test procedure
a. Adjust the backwash flow rate according to the design requirements
b. Open and close the relevant valves, and run the equipment in the backwash process. Check whether the backwash process is correct, whether the operation is normal, and whether there is any leakage of filter media.
c The backwash process runs for 10 minutes.
6.3 Performance test
6.3.1 Filtration test
6.3.1.1 Test conditions
a The test should be carried out at the Shantian water injection station or water distribution room. The test pressure, temperature and rated processing capacity specified in the design should be followed. C. The filter medium should be oily wastewater from the oil field or natural surface water. d. The filter media should be of the type, specification and quantity specified in the design. 6.3.1.2 Test sequence
a After the equipment is run in the normal filtration process for 1 hour, take the inlet and outlet water samples for testing. After that, take the inlet and outlet water samples for testing every 6 hours. b. The water should be tested according to the relevant provisions in SY5329. c. When the automatic filter reaches one of the backwash conditions, it should automatically enter the backwash operation. 6.3.2 Backwash (filter media regeneration) test
6.3.2.1 Test conditions
When any of the following conditions are met during the filtration operation, a backwash test shall be carried out: 1. Normal filtration operation for the specified time
b. The pressure difference between the inlet and outlet exceeds the design requirements: c. The water quality index after filtration decreases and does not meet the design requirements. 5
6,3.2.2 Test procedures
SY/T 0523--93
a. According to the design pressure, temperature, backwash flow rate and filter medium (usually the original filter medium is used, and the two-stage filter uses the water after the first stage of filtration). Close all relevant valves b. Enter the normal backwash operation of the equipment
C. When the water at the sewage outlet is clear and basically consistent with the inlet water, the forward and reverse wash operation can be terminated d. When the automatic filter is backwashed to meet the requirements, it should be able to automatically enter the filtration operation. 7 Inspection rules
7. 1 Type inspection
7.1.1 Type inspection shall be conducted when any of the following conditions are met: a. New products that have been trial-produced,
b. Major changes in product design, process, or materials that affect product performance,
c. During normal production, every three years or when the production volume accumulates to 100 units: d. There are major quality problems or the national quality supervision agency has proposed a type inspection requirement. 7.1.2 Type tests shall be conducted on a random basis in the same batch of products. 7.1.3 Type inspections must be conducted in accordance with the relevant contents of Articles 5.8.4 to 5.8.7 and the items specified in Articles 6.1 to 6.3. 7.2 Factory inspection
7.2.1 Filters shall be inspected for each unit before delivery. 7.2.2 Factory inspections shall be conducted in accordance with the relevant contents of the technical requirements of this standard and the items specified in Articles 6.1 and 6.2. 7.3. Determination of original purchase
7.3.1 During the factory inspection, if there are unqualified items, the reasons should be found out, the faults should be eliminated, and the items should be re-inspected. Only after they are qualified can they be shipped out of the factory. .3.2 During the type inspection, if the sampling table or inspection items are unqualified, the sampling should be doubled. 8 Marking, packaging, transportation and storage
8.1 The filter should be nailed with a nameplate at the specified position of the drawing. The nameplate content is: a. Product name and model:
b. Main parameters of the product (rated processing capacity, pressure, temperature, import and export water quality indicators), c. Overall dimensions and quality
d. Manufacturer name and trademark
e. Factory number,
f. Issue date.
8.2 For filters using walnut shell filter material, the filter material should be treated with antiseptic and sterilization before packaging. 8.3 The filter material used in the filter should be packed in a textile bag and tied, and the bag should be marked with: filter material type, specification, quality. It should be shipped alone or with the filter.
8.4 The filter should be packed according to the cloth customs regulations of JB2536, and the wearing parts and random accessories should be shipped together. The random documents are as follows:
a. Product certificate:
b. Instruction manual
c. List of random tools, spare parts and accessories. 8.5 When the filter is installed on the vehicle (ship), it should be operated strictly according to the lifting position and lifting tools specified in the instruction manual. 8.6 When the filter is stored for a long time, it should be stored in a warehouse with ventilation, moisture-proof and fire-proof facilities according to the relevant requirements in the instruction manual. A1 quartz sand filter material
A1.1 The main technical indicators of quartz sand filter material are as follows: density 2.55~2.65g/cm
Bulk density
Abrasiveness
Crushing rate
Ignition value
Mud content
SiO2 content
1.6~1.65g/cm2
A1.2 The particle size specifications of quartz sand filter media are shown in Table A1. Specifications A2 Anthracite filter media SY/T 0523--93 Appendix A Technical indicators of various filter media (reference material). A2.1 The main technical indicators of anthracite filter media are as follows: Density Bulk density Crushing rate Wear rate Mud content Uneven hook coefficient 1.4-~1.6g/cm2 0.75~0.95g/cm m2
A2.2 Anthracite filter material particle size specifications are shown in Table A2 Table A2
Manganese sand filter material
The main technical parameters of manganese sand filter material are as follows: A3.1
Bulk density
Manganese content
Broken rate
Abrasion rate
Uneven coefficient
SY/T0523-93
A3.2 Manganese sand filter material particle size specifications are generally 0.8~1.2mm. A4 Magnetite filter material
A4.1 The main technical parameters of magnetite filter material are as follows: Density
Denseness
Mud content
Broken rate
Abrasion rate
Uneven coefficient
A4.2 Magnetite filter material particle size specifications: *Generally 0.25~0.5mm. Additional Notes:
This standard was proposed by the Oil and Gas Field and Pipeline Construction Design Professional Standardization Committee. This standard was drafted by Jianghan Petroleum Machinery Plant and Shengli Petroleum Administration Bureau Design Institute. The main drafters of this standard are Ren Fayun, Wang Jianfeng, Wang Baolan, Li Zhixiu and He Guihua.
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