GB 50253-1994 Oil pipeline engineering design specification GB50253-94
Some standard content:
Engineering construction standard full text information system
National Standard of the People's Republic of China
GB50253—94
Design code for oil transporation pipeline engineering
Desogn code for oil transporation pipeline engineeringConstruction standard
1994—03-14
State Bureau of Technical Supervision
Ministry of Construction of the People's Republic of China
Engineering construction standard full text information system
1Implementation
1994-11-01
Jointly issued
Engineering construction standard full text information system
National Standard of the People's Republic of China
Design code for oil transportation pipeline engineering
Design code for oil transportation pipeline engineeringGB50253-94
Editor department: China National Petroleum CorporationApproval department: Ministry of Construction of the People's Republic of ChinaEffective date: November 1, 1994
Engineering construction standard full text information system
Engineering construction standard full text information system
Notice on the release of the national standard "Oil Pipeline Engineering Design Code"
Construction Standard [1994] No. 156
According to the requirements of the State Planning Commission's document No. 2390 [1987] and the Ministry of Construction's document No. 727 [1991], the national standard "Oil Pipeline Engineering Design Code" jointly compiled by China National Petroleum Corporation and relevant departments has been reviewed by relevant departments. The "Oil Pipeline Engineering Design Code" GB50253-94 is now approved as a mandatory national standard and will be implemented on November 1, 1994. This specification is managed by China National Petroleum Corporation, its specific interpretation and other work is the responsibility of China National Petroleum and Natural Gas Pipeline Survey and Design Institute, and its publication and distribution is organized by the Standard and Norms Research Institute of the Ministry of Construction.
Ministry of Construction of the People's Republic of China
March 9, 1994
Engineering Construction Standards Full Text Information System
Engineering Construction Standards Full Text Information System
Oil Transportation Technology
General Provisions
Technology Calculation·
Technology Flow:
Line Selection
Pipeline Laying·
External Corrosion Control and Insulation of Pipelines
Pipeline Shut-off Valves
Anchorage of Pipelines
4.6 Pipeline Marking
Structural Design of Oil Pipelines, Pipeline Accessories and Supports 5.1
Loads and Forces
Allowable Stress
（14)
·(15)
（15 )
（18)
Calculation of the wall thickness of oil pipelines and structural design of pipeline accessories 19 Strength verification of pipelines
5.6 Rigidity and stability of pipelines
General provisions
6.2 Storage and loading and unloading
6.3 Selection of process equipment
Engineering construction standard full-text information system
Electricity and electricity
Electricity and electricity
Engineering construction standard full-text information system
6.4 Supply and distribution
6.5 Water supply and drainage
6.6 Heating, ventilation and heating
6.7 Instrument and control system
Pipeline monitoring system·
General provisions
7.2 Control center and main computer system
7.3 Station control Control system
Welding inspection and pressure test of oil pipeline
Welding and inspection
Appendix A
Appendix B
Appendix C
Appendix D
Appendix E
Appendix F
Appendix G
Appendix H
Appendix J
Measurement items of general physical properties of crude oil
Measurement items of rheological properties of crude oil
Calculation of average temperature of oil transportation
Input calculation of hydraulic friction coefficient.
Calculation of friction along the pipe section of pseudoplastic fluid
Flexibility coefficient and stress intensification factor
Calculation of radial deformation of steel pipe
Critical axial force and calculated bending radius for the beginning of instability of buried oil pipeline||tt ||Butt welding joints between two pipe ends of unequal wall thickness
Appendix K
Explanation of terms used in this specification·
Additional explanation
Engineering Construction Standard Full Text Information System
: (35)
(38)
·(44)
(48)
(49)
(51)
(55)
(58)
(65)
Engineering Construction Standard Full Text Information System
1.0.1 This specification is formulated to implement relevant national policies and guidelines in the design of oil pipeline projects, actively adopt new processes, new technologies, new equipment and new materials, and achieve advanced technology, economic rationality, safety and applicability, and ensure quality. 2 This specification is applicable to the design of new and expanded crude oil pipeline projects on land. 1.0.2
3 The design of oil pipeline projects shall comply with the following principles: 1.0.3
1.0.3.1 Protect the environment, reduce energy consumption, and save land. Handle the relationship with railways and highways.
1.0.3.2 Actively adopt advanced technology and reasonably absorb new scientific and technological achievements at home and abroad. 1.0.3.3 The oil pipeline project shall optimize the design plan, determine the economically reasonable oil transportation process and the best process parameters.
1.0.4 The design of oil pipeline crossing and spanning projects shall comply with the relevant provisions of the current national standard "Design Specifications for Crossing and Spanning Projects of Long-distance Crude Oil Pipelines". 5 In addition to complying with this specification, the design of oil pipeline projects shall also comply with the provisions of the current national standards and specifications. 1.0.5
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
2.0.1 Pipeline Engineering for Oil Transportation Pipeline engineering for oil transportation is a construction project for transporting oil products by pipeline, generally including steel pipes, pipeline accessories and oil stations.
2.0.2 Oil Transportation Station Oil Transportation Station A general term for various process stations in oil pipeline projects. Such as: oil transportation head station, terminal station, intermediate pumping station, intermediate heat pump station, intermediate heating station and sub-transmission station. 2.0.3 Head Station Head Station
The starting station of the oil pipeline.
2.0.4 Terminal Station Terminal
The terminal station of the oil pipeline.
2.0.5 Intermediate Pumping Station Intermediate Pumping Station An oil station with pressurizing facilities between the oil transportation head station and the terminal station. 2.0.6 Intermediate heating and pumping station An oil station with heating and pressurizing facilities between the first and last stations. 2.0.7 Intermediate heating station An oil station with heating facilities between the first and last stations. 2.0.8 Lateral station
An oil station that distributes oil to users through pipeline branches. 9 Intermediate stationbzxz.net
A general term for intermediate pumping stations, intermediate heat pumping stations and intermediate heating stations. 2.0.10 Station control system A system that automatically controls the process equipment and auxiliary facilities of the entire station. 2.0.11 Pipe fittings
A general term for elbows, elbows, tees, reducers and pipe caps. Engineering 2 Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
2.0.12 Pipeline Accessories
pipeaccessory
A general term for special pipeline parts such as pipe fittings, flanges, valves and their assemblies, insulating flanges, insulating joints, pig receivers and filters. 2.0.13
Maximum Steady State Operating Pressure
maximum steady state operating
pressure
The maximum allowable operating pressure when the oil in the pipeline is in a steady state (non-transient). Its value should be equal to the sum of the elevation difference between stations, friction loss and the required residual pressure at the station. Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
3 Oil Transportation Process
3.1 General Provisions
3.1.1 The design annual working days of the oil pipeline project shall be calculated as 350 days, and the design maximum annual oil transportation volume shall be calculated according to the annual maximum oil transportation volume specified in the design task book or contract. The design minimum annual oil transportation volume shall meet the thermal conditions of economic and safe transportation. 3.1.2 The oil pipeline shall adopt a closed transportation process. When conditions are limited, the bypass oil tank transportation process can be adopted.
3.1.3 The oil pipeline project must be designed according to the physical properties and rheological properties of the crude oil being transported. The measurement items of the general physical properties and rheological properties of crude oil shall comply with the provisions of Appendix A and Appendix B of this specification.
3.1.4 When the oil pipeline adopts the heating transportation method, the insulation measures of the oil transportation equipment and pipelines shall be determined based on the comprehensive analysis and comparison of power and heat energy consumption. 3.2 Process calculation
Calculation.
When crude oil is a Newtonian fluid in the pipeline, the friction loss along the pipeline shall be calculated according to the following formula:
(3.2.1-1)
Hydraulic friction loss along the pipeline (m); where h is the friction coefficient, which shall be calculated according to Appendix D; L is the length of the pipeline (m);
d is the inner diameter of the oil pipeline (m);
V is the average flow rate of crude oil in the pipeline (m/s);
(3.2.1-2)
Engineering Construction Standard Full Text Information System
g is the acceleration of gravity (9.81m/s3);
q is the crude oil flow rate at the average temperature (m/s), and the average temperature calculation shall comply with the provisions of Appendix C.
When crude oil is a pseudoplastic fluid in the pipeline, its friction loss along the pipeline can be calculated according to the provisions of Appendix 3.2.2
E.
3The temperature drop of buried oil pipelines should be calculated according to the following formula: 3.2.3
ti-to —b
t2-to-b
wherein ti-
crude oil temperature at the starting point of the pipeline (℃);
crude oil temperature at the end point of the pipeline (℃);
(3.2.3—1)
(3.2.3—2)
(3.2.3—3)
average ground temperature in the coldest month at the center of the pipeline (℃); pipeline length (m);
hydraulic gradient when the flow rate is qm (m/m); gravity acceleration 9.81m/S*;
C——specific heat capacity of crude oil at the average oil transportation temperature (J/kg·℃); -total heat transfer coefficient (W/m2.℃);
D—outer diameter of a pipeline (m);
-crude oil flow rate (kg/s).
3.3 Process flow
3.3.1 The process flow of the first oil transportation station should have the functions of oil collection, storage, forward transportation, pigging, and station circulation. If necessary, it should also have the functions of crude oil metering and (or) reverse transportation. 2 The process flow of the intermediate pump station should have the functions of forward transportation, pressure bypassing, receiving and sending pigs or pig bypassing. When the heating transportation method is adopted, it should also have the functions of reverse transportation and thermal bypassing. When the intermediate pump station has branch transportation, crude oil metering facilities should be set up. Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
3 The process flow of the intermediate heating station should have the functions of forward transportation, thermal bypassing and reverse transportation.
The process flow of the terminal station should have the functions of oil collection, storage, metering, loading (ship) or 3.3.4
(and) to users and receiving pigs. When heating is used for transportation, it should also have the functions of internal circulation and reverse transmission.
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
4.1 Line Selection
4.1.1 The selection of oil pipeline lines should be determined through comprehensive analysis and technical and economic comparison based on the natural conditions such as meteorology, hydrology, topography, geology, earthquakes, etc. along the line and the current situation and development plan of transportation, electricity, water conservancy, industrial and mining enterprises, urban construction, etc., on the premise of convenient construction and safe operation.
4.1.2 After the general direction of the line is determined, the direction of the local line should be locally adjusted according to the location of the intermediate station and large and medium-sized crossing and spanning projects. 4.1.3 The oil pipeline shall not pass through cities, urban water source areas, factories, airports, railway stations, sea (river) ports, military facilities, national key cultural relics protection units and national nature reserves. When the oil pipeline must pass through due to conditions, protective measures should be taken and approved by relevant national departments. 4.1.4 The oil pipeline should avoid bad geological areas such as landslides, collapses, subsidence, mudslides, and active fault zones in areas with earthquake intensity equal to or greater than seven degrees. When conditions restrict the passage, protective measures should be taken and appropriate locations should be selected to reduce the passing distance.
Regulations:
The minimum distance between buried oil pipelines and ground buildings (structures) should comply with the following 4.1.5.1
Less than 15m.
The distance from urban residential areas or independent houses with dense population should not be 4.1.5.2
The distance from airports, sea (river) ports, large and medium-sized reservoirs and hydraulic buildings (structures), factories should not be less than 20m. 4.1.5.3
When laid parallel to first- and second-class highways, the distance should not be less than 10m.
When the oil pipeline is laid parallel to the railway, the oil pipeline should be laid at a distance of 4.1.5.4
Engineering Construction Standard Full Text Information System4
(and) to the user and the function of receiving the pig. When heating is used for transportation, it should also have the function of internal circulation and reverse transmission.
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
4.1 Line Selection
4.1.1 The selection of oil pipeline routes should be determined through comprehensive analysis and technical and economic comparison based on the natural conditions such as meteorology, hydrology, topography, geology, earthquakes, etc. along the route and the current situation and development plan of transportation, electricity, water conservancy, industrial and mining enterprises, urban construction, etc., on the premise of convenient construction and safe operation.
4.1.2 After the overall direction of the line is determined, the direction of the local line should be locally adjusted according to the location of the intermediate station and large and medium-sized crossing and spanning projects. 4.1.3 Oil pipelines shall not pass through cities, urban water source areas, factories, airports, railway stations, sea (river) ports, military facilities, national key cultural relics protection units and national nature reserves. When the oil pipeline must pass due to conditions, protective measures should be taken and approved by relevant national departments. 4.1.4 The oil pipeline should avoid bad geological areas such as landslides, collapses, subsidence, mudslides, and active fault zones in areas with earthquake intensity equal to or greater than seven degrees. When it must pass due to conditions, protective measures should be taken and appropriate locations should be selected to reduce the passing distance.
Regulations:
The minimum distance between the buried oil pipeline and the ground buildings (structures) should comply with the following 4.1.5.1
Less than 15m.
The distance from urban settlements or independent houses with dense population should not be 4.1.5.2
The distance from airports, sea (river) ports, large and medium-sized reservoirs and hydraulic buildings (structures), factories should not be less than 20m. 4.1.5.3
When laid parallel to the first and second-class highways, the distance should not be less than 10m.
When the oil pipeline is laid parallel to the railway, the oil pipeline should be laid at a distance of 4.1.5.4
Engineering Construction Standard Full Text Information System4
(and) to the user and the function of receiving the pig. When heating is used for transportation, it should also have the function of internal circulation and reverse transmission.
Engineering Construction Standard Full Text Information System
Engineering Construction Standard Full Text Information System
4.1 Line Selection
4.1.1 The selection of oil pipeline routes should be determined through comprehensive analysis and technical and economic comparison based on the natural conditions such as meteorology, hydrology, topography, geology, earthquakes, etc. along the route and the current situation and development plan of transportation, electricity, water conservancy, industrial and mining enterprises, urban construction, etc., on the premise of convenient construction and safe operation.
4.1.2 After the overall direction of the line is determined, the direction of the local line should be locally adjusted according to the location of the intermediate station and large and medium-sized crossing and spanning projects. 4.1.3 Oil pipelines shall not pass through cities, urban water source areas, factories, airports, railway stations, sea (river) ports, military facilities, national key cultural relics protection units and national nature reserves. When the oil pipeline must pass due to conditions, protective measures should be taken and approved by relevant national departments. 4.1.4 The oil pipeline should avoid bad geological areas such as landslides, collapses, subsidence, mudslides, and active fault zones in areas with earthquake intensity equal to or greater than seven degrees. When it must pass due to conditions, protective measures should be taken and appropriate locations should be selected to reduce the passing distance.
Regulations:
The minimum distance between the buried oil pipeline and the ground buildings (structures) should comply with the following 4.1.5.1
Less than 15m.
The distance from urban settlements or independent houses with dense population should not be 4.1.5.2
The distance from airports, sea (river) ports, large and medium-sized reservoirs and hydraulic buildings (structures), factories should not be less than 20m. 4.1.5.3
When laid parallel to the first and second-class highways, the distance should not be less than 10m.
When the oil pipeline is laid parallel to the railway, the oil pipeline should be laid at a distance of 4.1.5.4
Engineering Construction Standard Full Text Information System
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.