SY/T 5537-2000 Technical Specification for Operation of Crude Oil Pipelines
Some standard content:
ICS 75.200
Registration number: 6858--2000
Petroleum and natural gas industry standard of the People's Republic of ChinaSY/T 5537-2000
Operation technical code of crude oil pipeline
The operation technical code of crude oil pipeline2000-03-10 Issued
State Administration of Petroleum and Chemical Industry
2000-10-01 Implementation
SY/T 5537-2000
Cited standard
Principles for determining control parameters
Operation technology
Equipment operation
General maintenance technology
Basic work
SY/T 5537—2000
This standard is a revision of SY/I553792 "Technical Management Specifications for Crude Oil Pipeline Operation" based on the development of oil pipeline operation technology in recent years. This standard is one of the important standards to ensure the safe, stable and efficient operation of oil pipelines. This revision adds new content based on the 1992 version, and reorganizes and adjusts each chapter. From the date of entry into force, this standard will replace SY/T5537-92. This standard is proposed by China National Petroleum Corporation. This standard is under the jurisdiction of the Oil and Gas Storage and Transportation Professional Standardization Technical Committee. This standard was drafted by China National Petroleum Corporation Production Technology Department. Ren Zenghe
The main drafters of this standard are Zhang Cheng, Li Wang, Liao Qiang, and Zhang Zengqiang. This standard was issued in November 1992, and this is the first revision. 1 Scope
Petroleum and Natural Gas Industry Standard of the People's Republic of China Technical Specification for Operation of Crude Oil Pipelines
The operation tcehnical code of crude oil pipelineclincThis standard specifies the technical requirements and principles for the operation of onshore crude oil pipelines. This standard is not applicable to onshore crude oil pipelines. 2 Referenced standards
SY/T 5537---2000
Replaces SY/T 5537-92
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. SY 52251994
SY/T 5S36—92
SY 5737—1995
SY/T 5920--94
Regulations on fire and explosion prevention and safety management for drilling, development, storage and transportation of petroleum and natural gas Specifications for commissioning of crude oil heating pipelines Safety regulations for crude oil pipeline transportation
Crude oil depot operation management specifications
SY/T6148-1995 Pipeline cleaning operation procedures for oil pipelines 5Y/T6324--1997 Regulations on the management of instruments and automation facilities for oil and gas pipelines SY6325--1997 Technical management of electrical equipment for oil and gas pipelines Regulations SY/T6382-1999 Technical Management Regulations for Heating Equipment in Oil Pipelines SY/T6469-2000 Technical Specifications for Transportation of Crude Oil Pipelines with Pour Point Depressants Regulations for the Protection of Petroleum and Natural Gas Pipelines Order No. 33 of the State Council of the People's Republic of China on March 12, 1989 3 Principles for Determining Control Parameters
3.1 Process Parameters
3.1.1 Operating Pressure
3.1.1.1 The maximum operating pressure of the pipeline operation should not exceed the design working pressure. 3.1.1.2 The minimum inlet pressure of each oil transportation station should be able to meet the requirements of oil transportation conditions. 3.1.1.3 The set value of the outgoing alarm pressure should be lower than the maximum working pressure of the pipeline, and the pressure relief pressure value should be determined based on water hammer calculations. 3.1.1.4 The set value of the inlet alarm pressure should be higher than the minimum working pressure. 3.1.1.5 The set value of the pressure regulation system of the oil withdrawal station should be determined based on the pipeline oil transportation plan and safety requirements. 3.1.1.6 The maximum working pressure of the pipeline should be adjusted in time according to the pipeline conditions. 3.1.2 Operating temperature
3.1.2.1 The maximum outlet temperature of the pipeline operation should not exceed the design maximum temperature. 3.1.2.2 The minimum inlet temperature of crude oil in the hot oil pipeline should be 3T higher than the pour point of the source oil. 3.1.2.3 For the hot oil pipeline with crude oil modification, the minimum inlet temperature of crude oil should be 3C higher than the pour point of crude oil measured on site. 3.1.3 The minimum flow rate of hot oil pipelineWww.bzxZ.net
3.1.3.1 The minimum flow rate of hot oil pipeline should be determined according to different seasons. The minimum flow rate should be able to ensure that the humidity of crude oil entering the next heating station is not lower than the minimum inlet temperature of crude oil, and it should also meet the operation requirements of the oil transportation equipment. Approved by the State Administration of Petroleum and Chemical Industry 20HK-10 2000-10-01 Implementation
SY/T 5537-2000
3.1.3.2 For hot oil pipelines that have been modified with crude oil, the minimum flow rate should be determined based on 3.1.3.1, taking into account the growth rate of the condensate layer in the pipeline (whether the operating pressure is stable). 3.1.4 Hot oil pipeline stop time
The maximum stop time of hot oil pipelines should be determined according to the most unfavorable stations in different seasons and thermal and hydraulic conditions. 3.1.5 The minimum total flow rate and the minimum flow rate per unit of hot oil pipelines during reverse flow 3.1.5.1 The minimum total flow rate should be greater than 1.5 times the longest distance between the hot station and the pipeline foundation. 3.1.5.2 The minimum flow rate per unit time should be higher than the minimum flow rate per unit time of the pipeline when the flow is stopped. 3.2 Equipment parameters
3.2.1 The oil storage level of the oil storage tank should be determined according to SY/T5920. 3.2.2 The oil storage temperature of the oil tank should be 3°C higher than the freezing point of crude oil and lower than the designed oil storage temperature. 3.2.3 According to the design requirements of the heating equipment, determine the maximum temperature of each section of the furnace of the heating equipment, the maximum and minimum temperatures of the flue, the maximum temperature of the medium out of the furnace, the maximum temperature difference between parallel furnace tubes, the minimum flow rate of the medium and the maximum pressure difference through the heating equipment. 3.2.4 According to the factory requirements of the pump unit, determine the maximum pump pressure, pump motor rated current, unit bearing temperature, maximum vibration value of each part of the pump body and shaft, etc.
4 Operation technology
4.1 Operation requirements
4.1.1 The commissioning of hot oil pipelines shall comply with SYT5536. 1.1.2 The pipeline operation plan shall be prepared on an annual, monthly and monthly basis, and the pipeline operation shall be analyzed regularly, and adjustment measures shall be proposed for existing problems.
A transportation contract shall be signed with the oil delivery unit and the oil receiving unit. 4.1.31
4.1.4 The physical properties of the crude oil transported by the pipeline shall be tested at least twice a year. The test content shall include the freezing point, density and viscosity-temperature curve of the crude oil transport temperature range.
4.1.5 For crude oil pipelines that use the pour point depressant treatment and transportation process, SYT6469 shall be implemented. 4.1.6 For pipelines with large drop along the line. It shall be ensured that the dynamic water pressure of the large drop section during pipeline operation and the static water pressure of the lowest point when the pipeline is stopped do not exceed the designed operating pressure.
4.1.7 When the pipeline operation parameters need to exceed the allowable value, they shall be reported to the competent department of the enterprise for approval in advance. 4.1.8 Accident prediction and treatment plans should be formulated according to the conditions of each pipeline, especially the malfunction of the automatic control system, pipeline failure, oil leakage, burst, damage and fire of the transmission equipment, etc. 4.2 Operation principles
4.2.1 Determine the operation plan and operation parameters according to the output to ensure the lowest cost and safe operation of the pipeline. 4.2.2 For pipelines transporting waxy crude oil, the wax deposition condition of the pipeline should be analyzed regularly, and a reasonable pipeline cleaning cycle should be formulated according to the output, operating pressure, operating temperature, oil properties, etc. 4.2.3 For hot oil pipelines operating at the lowest output, it is advisable to adopt crude oil modification treatment and transportation processes such as pour point depressant treatment based on economic comparison and safety evaluation.
4.2.4 The efficiency of the operating equipment should be tested regularly, the system efficiency should be evaluated, and the operation should be adjusted or inefficient equipment should be replaced in time. 4.3 Process flow operation rules
4.3.1 The process switch should be carried out when the instrument indication is accurate, the safety protection and alarm system is in good condition, and the communication line is unobstructed. 4.3.2 The process operation should be turned on first and then off.
4.3.3 When operating a process with high and low pressure connections, the low pressure should be turned on first and then the high pressure; conversely, the high pressure should be cut off first and then the low pressure.
4.3.4 When adjusting the output of the entire line or switching the process to cause a change in output, the liquid level changes in each station tank should be monitored in time. 4.3.5 When switching from the pump start process to the pressure cross-station process, the pipeline output and heating equipment load should be reduced in advance. —2
SY/T 5537--2000
4.3.6 When switching from pressure cross-station or full cross-station to the pump start process, the displacement of the oil pump should be reduced in advance. 4.3.7 When the oil station is out of service, the heating equipment should be stopped in advance according to the specified time. 4.3.8 When manually operating the process, the operation ticket system should be implemented. 4.4 Pipe cleaning operation
4.4.1 A safe and feasible cleaning plan should be formulated. 4.4.2 Pipe cleaning operations shall be carried out in accordance with SY/T6148,
5 Equipment operation
5.1 General requirements
5.1.1 Newly built equipment or equipment put back into use after overhaul must be inspected and accepted in accordance with regulations before it can be put into operation. 5,1.2 The operating equipment should be monitored and inspected as required, and the main operating data should be checked and recorded in time. 5.1.3 The equipment should be operated in the high-efficiency area and should not be operated at overpressure, overtemperature, overspeed or overload. 5.2 Hanyoumeng
The oil pump should be started and stopped according to the operating procedures.
When switching the oil pump, the start-first-then-stop operation mode should be adopted, and the displacement of the running pump should be reduced before starting. 5.2.21
5.2.3 The oil pump unit should have a complete protection system such as monitoring regulations and alarms. 5.3 Crude oil heating equipment
5.3.1 The start and stop of the heating equipment shall be carried out in accordance with the operating procedures. 5.3.2 During operation, the furnace body, accessories and auxiliary systems (fuel and combustion air systems, automatic control and instrument systems, heat medium systems) shall be inspected on time.
All parameters of equipment operation shall be within the specified range. 5.3.3
The furnace body and furnace tubes shall be inspected regularly, and the heat medium performance of indirect heating equipment shall also be inspected regularly. 5.3.4
The pollution caused to the environment by the heating equipment during operation and ash cleaning shall be reduced. 5.3.51
5.3.6 The heating equipment shall have necessary protection systems such as monitoring and alarm. 5.4 Oil storage tank
5.4.1 The liquid level of the operating oil tank shall be within the specified safe liquid level range. If the safe liquid level range is exceeded in special circumstances, it shall be reported to the industry supervisor for approval, but it shall not exceed the oil tank limit liquid level. 5.4.2 The operation of oil tanks shall be carried out in accordance with SY/T5920, and the relevant safety regulations shall comply with SY5225. 5.5 Valves
5.5.1 The operation of valves shall comply with the relevant operating procedures. 5.5.2 The main valves such as special-purpose regulating valves, pressure reducing valves, safety valves, high (low) pressure relief valves, etc. shall be operated and maintained in accordance with the corresponding operation and maintenance procedures, and shall be calibrated regularly as required. 5.6 Main supporting facilities for oil transportation
5,6.1 The operation and management of electrical equipment at oil transportation stations shall comply with SY/T 6325. 5.6.2 The operation and management of automated instruments on pipelines shall comply with SY/T6324. 5.6.3 The management of firefighting facilities at oil transportation stations shall comply with SY5225. 5.6.4 The operation and management of heating equipment shall comply with SY/T6382. 6 Pipeline maintenance technology
6.1 Pipeline maintenance and corrosion prevention
6.1.1 The outer arm of the oil transportation station shall be protected by both anti-corrosion insulation and cathodic protection. New pipelines must be put into operation only after the cathodic protection technology is normal.
6.1.2 The marker piles, test piles and one-way piles along the pipeline outside the oil transportation station shall be complete and standardized management shall be implemented. 3
SY/5537-2000
6.1.3 For pipelines that do not meet the cathodic protection standards, sacrificial anodes or other protection measures shall be adopted. 6.1.4 Regularly check the anti-corrosion insulation layer of the pipeline, and repair those that do not meet the requirements in time. 6.2 Station Pipes
6.2.1 Effective anti-corrosion and insulation measures must be taken for the pipeline network within the station. 6.2.2 Hot oil and thermal pipelines should be effectively insulated. 6.2.3 The outer surface of the underground pipeline network within the station should be painted and marked as required. 6.2.4 The valves and pipe fittings on the pipeline network must be regularly maintained to prevent rust or damage. 6.3 Pipeline Maintenance and Emergency Repair
6.3.1 Carry out pipeline protection work in accordance with the "Regulations on the Protection of Shile and Natural Gas Pipelines" issued frequently by the State Council. 6.3.2 Regularly inspect the pipelines along the line, and strengthen inspections during the flood season for pipe sections with more soil and water loss and key crossing pipe sections. 6.3.3 Formulate corresponding maintenance and emergency repair plans for each pipeline situation. 6.3.4 Safety regulations for pipeline emergency, implementation of SY57377 basic work
7,1 Basic data
7.1.1 The completion data of pipelines (including the pipeline network within the station) and equipment should be complete and accurate. 7.1.2 The operation and maintenance files of pipelines (including the pipeline network within the station) and equipment should be established. 7.1.2.1 Maintenance and inspection files should be established for valves with a nominal diameter of more than 200m and non-manual valves with a nominal diameter of less than 200mm.
7.1.2.2 The operation files of important equipment such as oil pump units, heating equipment, and oil tanks should also include energy consumption detection, analysis, and operation status evaluation.
7.1.3 The operation reports and records of each post and dispatch at all levels of the oil station should be neat and complete. 7.1.4 The records of important production activities should be recorded in detail. 7.1.5 Production operation analysis should be carried out regularly, and the interval should not be greater than one month. 7.2 Technical Standards
7.2.1 The process and equipment operation, maintenance and overhaul procedures for each production position should be established and improved. 7.2.2 The technical standards for service positions should be equipped. 7.3 Work Standards and Responsibilities
7.3.1 Establish strict production scheduling and command procedures and work processes. 7.3.2 Improve the job responsibilities of each position and the production management and safety production rules and regulations. 7.3.3 Formulate job standards according to the requirements of safety, energy conservation and environmental protection,2 Regularly inspect the pipelines, and strengthen inspections during the flood season for pipe sections with more soil and water loss and key crossing pipe sections. 6.3.3 Formulate corresponding maintenance and emergency repair plans for each pipeline situation. 6.3.4 Safety regulations for pipeline emergency repairs, implement SY57377 Basic work
7,1 Basic data
7.1.1 The completion data of pipelines (including the pipeline network within the station) and equipment should be complete and accurate. 7.1.2 The operation and maintenance files of pipelines (including the pipeline network within the station) and equipment should be established. 7.1.2.1 Maintenance and inspection files should be established for valves with a nominal diameter of more than 200m and non-manual valves with a nominal diameter of less than 200mm.
7.1.2.2 The operation files of important equipment such as oil pump units, heating equipment, and oil tanks should also include energy consumption detection, analysis, and operation status evaluation.
7.1.3 The operation reports and records of each post and dispatch at all levels of the oil transfer station should be neat and complete. 7.1.4 The records of important production activities should be recorded in detail. 7.1.5 The production operation analysis should be carried out regularly, and the interval should not be greater than one month. 7.2 Technical standards
7.2.1 The process and equipment operation, maintenance and overhaul procedures for each production post should be established and improved. 7.2.2 The service posts should be equipped with relevant technical standards. 7.3 Work standards and responsibilities
7.3.1 Establish strict production dispatch command procedures and work processes. 7.3.2 Improve the work responsibilities of each post and the production management and safety production rules and regulations. 7.3.3 Formulate job standards for posts in accordance with relevant safety, energy conservation and environmental protection requirements, 42 Regularly inspect the pipelines, and strengthen inspections during the flood season for pipe sections with more soil and water loss and key crossing pipe sections. 6.3.3 Formulate corresponding maintenance and emergency repair plans for each pipeline situation. 6.3.4 Safety regulations for pipeline emergency repairs, implement SY57377 Basic work
7,1 Basic data
7.1.1 The completion data of pipelines (including the pipeline network within the station) and equipment should be complete and accurate. 7.1.2 The operation and maintenance files of pipelines (including the pipeline network within the station) and equipment should be established. 7.1.2.1 Maintenance and inspection files should be established for valves with a nominal diameter of more than 200m and non-manual valves with a nominal diameter of less than 200mm.
7.1.2.2 The operation files of important equipment such as oil pump units, heating equipment, and oil tanks should also include energy consumption detection, analysis, and operation status evaluation.
7.1.3 The operation reports and records of each post and dispatch at all levels of the oil transfer station should be neat and complete. 7.1.4 The records of important production activities should be recorded in detail. 7.1.5 The production operation analysis should be carried out regularly, and the interval should not be greater than one month. 7.2 Technical standards
7.2.1 The process and equipment operation, maintenance and overhaul procedures for each production post should be established and improved. 7.2.2 The service posts should be equipped with relevant technical standards. 7.3 Work standards and responsibilities
7.3.1 Establish strict production dispatch command procedures and work processes. 7.3.2 Improve the work responsibilities of each post and the production management and safety production rules and regulations. 7.3.3 Formulate job standards for posts in accordance with relevant safety, energy conservation and environmental protection requirements, 4
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