SY/T 0047-1999 Technical Specification for Cathodic Protection System inside Crude Oil Processing VesselsSY/T0047-1999 Standard download decompression password: www.bzxz.net

Standard of the People's Republic of China for petroleum and natural gas industry Technical specification of internal cathodic protection systems in ciltreating vesselsSY/T 0047-1999Editor: Survey and Design Institute of Jianghan Petroleum AdministrationApproval department: Petroleum Industry Press, State Administration of Petroleum and Chemical IndustryBeijing, 1999Determination of the necessity of cathodic protectionCorrosion rate3 Selection and design of cathodic protection systemBasic design criteriaSystem selectionContainer with inner covering layerInstallation of anodeVertical hanging typeInternal support typeInstallation on vessel wallMethod of introducing reference electrodeProtection criterionSteel-to-water potential Hanging plate test
Monitoring, recording and maintenance,
8 Safety
Explanation of standard words and terms
Explanation of clauses of technical specifications for internal cathodic protection system of crude oil processing containers
Document of State Administration of Petroleum and Chemical Industry
State Petrochemical Government (1999) No. 201
Notice on the approval of 87 oil and gas industry standards including "Design Specifications for Corrosion Control Engineering of Steel Pipelines and Storage Tanks"
China National Petroleum Corporation:
The draft of 87 oil and gas industry standards including "Design Specifications for Corrosion Control Engineering of Steel Pipelines and Storage Tanks" submitted by your company has been approved by our bureau and is now published. Standard name and number:
Mandatory standard
SY 0007—1999
Recommended standard
SY/T 0005--1999
SY/T 0006—1999
SY/T 0026--1999
SY/T 0045—1999
Design specification for corrosion control engineering of steel pipelines and storage tanks (replacing SYI 784)
Design specification for oilfield water injection
(replacing SYI 5—89, SY/T 007093)Design specification for produced water treatment in oilfield
(replacing SYJ 6--89)
Test method for water corrosivity (replaces SYJ26-87)Design specification for electrical dehydration of crude oil (replaces SYJ45-91)SY/T 0046-1999
SY/T 00471999bzxz.net
SY/T 0059—1999
SY/T 0063—1999
SY/T 0066-1999
SYT 0067-1999
SY71 0094-1999
SY/T 0556—1999
SY/T 5025—1999
SY/T 5031--1999
SY/T 5079—1999
SY/1 5112--1999
SY/T 5113—1999
SY/T 51221999
Design specification for water injection deoxidation in oilfields
(replaces SYI46—91)
Technical specification for internal cathodic protection system of crude oil processing vessels (replaces SYJ47—91)
Technical specification for controlling the hardness of welds of steel equipment to prevent sulfide stress cracking (replaces SYI5991)
Test method for leak detection of pipeline anticorrosion layer
(replaces SY 0063-92)
Non-destructive measurement method for thickness of steel pipe anti-corrosion layer (magnetic method) (replaces SY0066-92)
Test method for impact resistance of pipeline anti-corrosion layer (limestone drop method) (replaces SY0067-92)
Test method for cathodic peeling of pipeline anti-corrosion layer (bonding electrolytic cell method)
Quick switch blind plate (replaces SY5256-91) Specification for drilling and well repair derrick and base
(replaces SY5025-9 1)
Specification for reciprocating internal combustion engines for oil fields
(Replace SY5031--91)
Well testing vehicle (Replace SYT5079-93)
Specification for drilling and oil production lifting equipment
(Replace SY5112-86)
Lifting ring (Replace SY5113---93)
Analysis method for carbon, hydrogen and oxygen in rock organic matter (Replace SY5122-86)
SY/T 51481999
SY/T 5153--1999
SY/r 51541999
SY/T 51641999
SYT 5168—1999
SYT 5171--1999
SY.T 5231--1999
SY/T 5232—1999
SY/r 5327—1999
SY/ 5345--1999
SY/T 356-1999
SYT 53571999
Pneumatic component one-way throttle valve for oil drilling equipment (replacing SY 5148--86)
Determination of wettability of reservoir rock
(Replaces SY 5153.187, SY 5153.2--87, SY 5153.3-95)
Sampling method of fluid in oil and gas reservoir
(Replaces SY5154-87)
Three-cone drill bit (Replaces SY5164--91)Classification and coding system for parts of oil drilling equipment (Replaces SY 5168--87)
Petroleum geophysical survey specification
(Replaces SY/T5171-93)
Computer security and confidentiality algorithm for oil industry (Replaces SY5231-91)
Right oil industry application software engineering specification
(Replaces SY 5232.1--5232.8-91 -SY 5232.10—91,SY 5232.11—91SY 5232.1491)
Radioactive nuclide carrier tracer logging
(Replace SY 532788)
Oil-water relative permeability determination
(Replace SY 5345—89)
Conventional coring operation method
(Replace SY535689, SY/T5489—92)Stuck drill soaking unstuck fluid operation method
(Replace SY 5357—89)
SYT 5370—1999
SfT 53831999
SYT 54341999
SY/T 54861999
SY/T 5609--1999
SY/T 5612.1--1999
SY/T 5612.2--1999
SY/T 5612.3---1999
Sf/T 5619-1999
SY/F 5633-1999
SYT 5639--1999
SY7T 5634-1999
Methods for determination of surface and interfacial tension
(Replaces SY/T5370-91SY/T5545-92.SYT 561793'
Screw drill (replaces SY/T5383-91)Method for particle size analysis of clastic rocks
(Replaces SY 5434--92'
Technical specification for testing unconventional formations
Replaces SY 5486-92SYT 5839-93
SY/T 6061-94. SY/T 6019--94) Types and basic parameters of oil drilling rigs
(Replaces SY/T 5609-93)
Degasser for drilling fluid purification system
Replaces SY/T 5612.193
Cleaner for drilling fluid purification system
Replaces SYT 5612.2-93
Cyclone for drilling fluid purification system
Replaces SY 5612.3-93
Design method of lower drilling tool assembly for directional wells
(replace SYT 561993
Format of petroleum surveying and drawing (replace SY5633-93)
Condenser and transfer gas joint for pneumatic components of oil drilling equipment (replace SY/T 5639-93)
Use and maintenance of petroleum surveying and cable
(replace SY/T 5634-93)
SY/T S785-1999
Information classification and coding guide for oil industry
(replace SY/T 5785-93)
SY/T 5788.3-1999
Geological logging procedures for oil and gas exploration wells
(replace $Y 5364-89, SY5365-89.SY/T 6157--1995. SY/T 5788.3--93-SY 5090-85
SY/T 5801—1999
SY/T 5820—1999
SY/T 58281999
SY/T 5891.1--1999
SY7T 5955--1999
SY/T 59801999
SY7 6382--1999
SY/T 6383—1999
SY/T 6384—1999
SYT 6385—1999
Regulations on Inspection and Acceptance of Field Data of Petroleum Gravity and Magnetic Exploration (Replaces SY/T5081—93)
Technical Specifications for Petroleum Magnetotelluric Sounding Method
(Replaces SY/T5820—93, SY/T5800—93)Detailed Rules for Quality Inspection and Acceptance of Petroleum Geophysical Survey Results (Replaces SY/T5828—93)
Specifications for the Production of Concrete Targets for Perforator Inspection in Oil and Gas Wells (Replaces SY/T5891.1—93)
Directional Well Drilling Technology and Quality Requirements (Replaces SY/T 5955-94.SY/T 5948-94)Design Specifications for Exploration Well Oil Test
(Replaces SY/T598094-SY 5514-92
SY/T 603694-SY 5485--92.
SY/T 5975-94. SY/T 6011—94.SY 5484-92)
Technical management regulations for heating equipment in oil pipelinesPigging operation procedures for long-distance natural gas pipelines
Determination of high-temperature relative permeability of heavy oil reservoirs
Determination method of rock porosity and permeability under pressureSY/T 6386-1999
SY/T 6387--1999
sr/r 6388--1999
SY71 63891999
SY/T 6390—1999
SY/T 6391—1999
SY/T 6392--1999
SY/T 6393—1999
SY/T 6394—1999
SY/I 6395—1999
SY/T 6396—1999
SY/T 6397—-1999
SY/T 6403—1999
sYr 64041999
SY/T 6405-1999
SYT 6406--1999 Technical Specifications for High Resolution Onshore Exploration Data Collection OPSEIS-EAGLE (24-bit) Data Collection System Inspection Items and Technical Indicators TELSEIS-STAR Optimized Data Collection System Inspection Items and Technical Indicators ARAM-24 Surface Data Collection System Inspection Items and Technical Indicators G·DAPS-4 Surface Data Collection System Inspection Items and Technical Indicators SEG-D Magnetic Tape Recording Format Oilfield Water Injection Information Generation Code
Technical regulations for energy conservation in the design of long-distance crude oil pipeline projects (replacing SY35--90)
Dry mixing operation method of oil well cement and admixture (external rubbing agent)
Test procedure for heavy brine
Technical requirements for collision prevention of cluster wells
Evaluation method for fungicides used in drilling fluids
Analysis and identification method of chitin
Analysis method of inductively coupled plasma atomic emission spectrometry for metal elements in sedimentary rocks
Geological design specification for geophysical auxiliary operation areaMaintenance and calibration of magnetic single and multi-point service phase inclinometerSY7T 6407--1999
SY7T 6408--1999
SY/T 6410-1999
SY/T 6411---1999
SY/T 64121999
SY/T 6413--1999
SY/T 64141999
SY/T 6415--1999
SY/T 6416--1999
SY/T 64171999
SY/T 6418-1999
SYT 6419-1999
SY/T 64201999
SY/T 6421-1999
SY/T 6422-—1999
SY/T 7502—1999
Specification for rotary drilling drill string components
Maintenance and use of drilling and workover derrick base production and output surface logging instrument calibration
General technical conditions for oil and gas detonating cord
Oil pipe conveying perforation process specification
CNC logging data acquisition specification
Method for determination of microscopic components of gold rock optical slice
Quality evaluation and archiving items for oil and gas exploration logging data installation, maintenance and operation recommended methods for internal combustion engines performance of casing, oil pipe and drill pipe
Connection performance of round threaded casing under the combined action of internal pressure and bending
Use and maintenance of glass fiber pipe
Technical specification for energy saving in oil field surface engineering design (replaces SYJ 44—90)
Determination of heat loss of equipment and pipelines
(replaces SYJ 4018--87)
Determination of energy-saving effect of energy-saving products in petroleum enterprises Analysis of oilfield gas composition by low-temperature condensation sampling gas chromatography (replacing SY7502-85)
The above standards shall be implemented from December 1, 1999. State Administration of Petroleum and Chemical Industry
May 17, 1999
This standard is based on [98] Zhongyou Jijianzi No. 33 "Notice on Issuing the 1998 National Standard Industry Standard Revision Plan for the Petroleum and Natural Gas Industry", and the Jianghan Petroleum Administration Bureau Survey and Design Institute is responsible for revising SYI47--91 "Design, Installation, Operation and Maintenance of Cathodic Protection Systems for Crude Oil Processing Vessels". This standard is equivalent to NACERP0575-95 "Recommended Practice for Cathodic Protection Systems for Crude Oil Processing Vessels".
This revision solicited opinions from various oilfield design units, higher petroleum colleges and universities, and was finally reviewed and finalized by the Planning and Design Institute of China National Petroleum Corporation.
This standard has the following changes compared to the original standard SYJ47-91: - The name of the standard is changed from "Design, Installation, Operation and Maintenance of Cathodic Protection System Inside Crude Oil Processing Containers" to "Technical Specifications for Cathodic Protection System Inside Crude Oil Processing Containers".
The polarity reversal temperature of the zinc anode driving potential is changed from 65℃ to 54℃. Deleted Sections 2 and 3 of Chapter 6 of SYJ47-91. - Added Article 8.0.6 to Chapter 8. - Deleted Appendix 1 of SYJ47-91. From the date of entry into force, this standard will replace SYJ47-91c. This standard is proposed by China National Petroleum Corporation. This standard is under the jurisdiction of the Planning and Design Institute of China National Petroleum Corporation. This standard is interpreted by the Survey and Design Institute of Jianghan Petroleum Administration Bureau. Drafting unit of this standard: Survey and Design Institute of Jianghan Petroleum Administration Bureau. The main drafters of this standard are Feng Xiaobei, Jia Hengyao, Gaofeng 1.
1.0.1 In order to ensure that the internal cathodic protection system of the container is technologically advanced, economically reasonable, safe and applicable, this standard is specially formulated. 1.0.2 This standard applies to the cathodic protection system of the contact surface between crude oil processing containers, heat exchangers or process containers and water.
1.0.3.In addition to complying with this standard, the design, installation, operation and maintenance of the cathodic protection system inside the container shall also comply with the provisions of the relevant mandatory standards currently in force in the country. 2 Determination of the necessity of cathodic protection
2.1 Overview
2.1.1 Any part of the inner surface of the crude oil processing container in contact with oilfield wastewater may be corroded. The necessity of cathodic protection depends on the severity of existing or potential corrosion and the degree of impact on equipment operation. Cathodic protection measures should be adopted if cathodic protection can achieve one or more of the following effects. These effects are: it can eliminate or minimize unsafe factors, it can economically control equipment failures and losses, and it can eliminate or minimize the loss of stored materials caused by leakage or container rupture.
2.1.2 The inner cover can be used together with cathodic protection to protect the crude oil processing container in order to reduce the protected metal surface area.
2.1.3 Cathodic protection is ineffective for steel surfaces in oil and gas phase environments. Covering layers and (or) corrosion inhibitors can be used to control the corrosion of steel surfaces in oil and gas phases. 2.2 Corrosion Rate
The corrosiveness of a fluid is affected by the following factors: 2.2.1
1Corrosion generally increases with increasing conductivity (solid dissolution) of the water (electrolyte).
2Corrosion in brines produced from oil fields generally increases with increasing acid-forming components (such as carbon dioxide and hydrogen sulfide). 3Even trace amounts of dissolved oxygen can increase corrosion. The corrosion rate generally increases with increasing temperature, except in the case of increased permanent scaling.
2.2.3Corrosion rate generally increases with increasing flow velocity or the presence of eddies. 2-
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