SY 0027-1994 Design specification for heavy oil gathering, transportation and steam injection system
Some standard content:
Petroleum and Natural Gas Industry Standard of the People's Republic of China Design Specification of Gathering and Transportationand Steam Inection System for Viscous Crude:SY 0027—94 Editing Department: China National Petroleum and Natural Gas Corporation Planning and Design Institute Liaohe Petroleum Administration Bureau Design Institute Xinjiang Petroleum Administration Bureau Design Institute Shengli Petroleum Administration Bureau Design Institute Approving Department: China National Petroleum and Natural Gas Corporation Effective Date: October 1, 1994 Petroleum Industry Press 1994·Beijing General Provisions Design of Oil and Gas Gathering System General Provisions Collection and Measurement of Viscous Oil Viscous Oil Desanding
Sleeve gas separation
Heavy oil heating
Heavy oil dehydration
Heavy oil pumping
Design of steam injection station
General provisions
Layout of steam injection station
Steam injection boiler room
Water treatment system
Fuel storage and supply
Start, stop and discharge of steam injection boiler
Auxiliary facilities of steam injection station
Design of steam injection pipeline
General provisions
Hydraulic calculation
Calculation of pipeline wall thickness
Pipeline layout and numerical design
Sectional notes
(14)
(15)
【23】
Selection of leakproof materials and insulation structures
Insulation calculation of steam injection pipelines
Pipeline corrosion protection
Appendix A
Appendix B
Appendix C
Basic stress of steel
Nominal pressure and maximum working pressure of carbon steel and alloy steel parts
Hydraulic calculation method of two-phase flow
Additional instructions
(25)
(30)
(36)
Explanation of the provisions of the Heavy Oil Gathering and Transportation and Steam Injection System Design Specifications (37) China National Petroleum Corporation Document
CNPC Technical Supervision No. 164
Notice on the approval and release of four oil and gas
industry standards including the "Heavy Oil Gathering and Transportation and Steam Injection System Design Specifications"
To all relevant units:
The four standards (drafts) including the "Heavy Oil Gathering and Transportation and Steam Injection System Design Specifications" have been reviewed and approved and are now approved as oil and gas industry standards and are hereby released. The numbers and names of the various standards are as follows: 1. SY 002794 SY /T 053194 SY /T 0533--94 SY /T 4073-94 Design of heavy oil gathering, transportation and steam injection system (instead of SYJ 27-87)
Measurement method of suspended particles in water injected into oil field
Resistance induction method
Technical regulations for design of pigging equipment
Standard for selection of metal hose and corrugated
compensator for earthquake resistance of storage tank
The above standards shall be implemented from October 1, 1994. China National Petroleum Corporation
April 5, 1994
1 General provisions
1.0.1 This specification is formulated to unify the design standards and technical requirements of heavy oil gathering and steam injection systems, so that the design is advanced in technology, economical, safe and applicable, of good quality, and the design level is continuously improved.
1.0.2 The oil and gas gathering and transportation part of this specification is applicable to oil fields with one of the following conditions: 1.0.2.1 Oil fields produced by steam injection method. 1.0.2.2 For oil fields exploited by conventional methods, the dynamic viscosity of crude oil at 50°C is greater than 0.4Pa*S, and the density at 20°C is greater than 0.9161 g/cm3.
1.0.3 The steam injection system part of this specification is applicable to: saturated steam temperature is less than or equal to 360°C, and saturated steam pressure is less than or equal to 18.6MPa.
1.0.4 The design of heavy oil gathering and steam injection system shall comply with the provisions of relevant national standards (specifications) in addition to complying with this specification. 1.0.5 Related standards or referenced standards
GB 50138
SYJ 45
SYJ 4039
SYJ 24
ZB E97 003
SY 7515
GBJ 87
Design specification for oil and gas gathering and transportation in oil fields
Design fire protection specification for crude oil and natural gas engineering constructionDesign specification for crude oil electric dehydration
Basic terms for petroleum engineering construction
Design specification for general layout of crude oil and natural gas engineering construction station
Design specification for environmental protection of oil and gas field and long-distance pipeline construction projects
Types and basic parameters of heating furnaces in petroleum industrySpecifications for oil and gas separators
Design specification for noise control in industrial enterprises
GBJ 41
GB 6479
GBJ 235
GBI 236
GB 5676
GB 4272
GB 8175
GBJ 126
DLGJ 23
SDGJ16
SYJ 44
GB 5310
Design specification for industrial boiler room (trial implementation)
High-pressure seamless steel pipe for fertilizer equipment
Construction and acceptance specification for industrial pipeline engineering (metal pipeline section)
Construction and acceptance specification for on-site equipment and industrial pipeline connection engineering
Cast carbon steel for general engineering
General test for equipment and pipeline insulation technology
Guide for equipment and pipeline insulation design
Construction and acceptance specification for industrial equipment and pipeline insulation engineering Technical regulations for steam-water pipeline design in thermal power plants Technical regulations for stress calculation of steam-water pipeline in thermal power plants Technical regulations for energy-saving design of oilfield surface engineering Seamless steel pipe for high-pressure boiler
2.0.1 Heavy oil
2 Terminology
Crude oil with a dynamic viscosity greater than 0.4Pas at 50℃ and a density greater than 0.916g/cm3 at 20℃.
2.0.2 Development Design
The design made by the geological development department for the oil field to be developed. The main contents include: development plan, injection and production parameters, oil production technology, etc. 2.0.3 Product plan
The process plan for refining crude oil into finished oil: including oil type, Wangyi process, etc. 2.0.4 "Integration of production, gathering, transportation and refining"
Refers to a technical policy that considers the production, gathering, transportation and refining processes of heavy oil as a whole.
2.0.5 Steam-added process
When the oil production process is thermal oil production by injecting high-pressure steam, a certain amount of reduced-pressure steam is added to the oil gathering pipeline to increase the oil gathering temperature and reduce viscosity and yang. 2.0.6 Injection-production integrated pipeline
Steam injection and oil output from the parallel port to the metering station Dual-purpose pipeline. 2.0.7
Gas-liquid ratio
The ratio of the daily natural gas production (m\) of the oil well to the total liquid volume (t) 2.0.8
Hydraulic sand flushing
A method of using pressurized water to remove sediments in the container during the production process.
Liquid residence time
Refers to the time required for the liquid to travel from the separator inlet to the outlet (or the ratio of the liquid volume to the liquid volume flow rate during normal production of the separator 2 .0.10 Buffer volume
Buffer volume refers to the volume between the minimum allowable liquid level and the maximum allowable liquid level in the container. 2.0.11
Buffer time
The ratio of buffer volume to liquid volume flow is the buffer time. 2.0.12
Steam injection station
It is a station for producing steam injected into the oil layer in heavy oil thermal recovery. 2.0.13
Steam supply radius
The distance from the steam injection station to the farthest steam injection well. 2.0.14 Steam injection
A process of injecting high-temperature and high-pressure steam into the oil layer to produce heavy oil. 2.0.15
When heavy oil is thermally recovered, steam injection: a development process that alternates oil production. 2.0.16
High-pressure steam is injected from the steam injection well: a development process that drives heavy oil to be produced from the production well.
Steam injection parameters
refer to steam injection pressure, temperature, rate and steam injection volume. 3 General provisions
3.0.1. The heavy oil gathering and transportation process should be based on the actual conditions of heavy oil development design, oil and gas properties, product plan, ground natural conditions, etc., and comprehensively consider the "integrated" process of filtration, collection, transportation and refining.
3.0.2 The oil and gas gathering and transportation project and steam injection system must be planned and implemented in blocks according to the development design. The construction scale should meet the development design needs and adapt to the conversion from throughput to steam drive.
3.0.3 Actively and prudently adopt new technologies, new processes, new materials and new equipment. 3.0.4
The oil-containing wastewater in the gas and oil production fluid of the oil field should be recycled and reused. 3.0.5 The discharge and noise control of wastewater, waste gas and waste residue generated in the production process of the oil and gas gathering and steam injection system must comply with the relevant regulations on environmental protection and labor safety.
It is necessary to make good use of heat energy: reduce the energy consumption of heavy oil gathering and transportation and steam injection system 4 Design of oil and gas gathering and transportation system
4.1 General provisions
4.1.1 The oil and gas gathering and transportation system adopts closed process and stable crude oil spreading to reduce oil and gas loss.
4,1.2 The thick gathering and transportation process should be feasibility demonstrated and reasonably selected according to the following conditions: 4.1.2.1 The heavy oil field with steam injection thermal recovery should be combined with the oil production process. If conditions permit, it is advisable to use the steam mixing process to rent an injection and production pipeline 4.1.2.2 The heavy oil treatment is built inside or near the oil field, and it is advisable to use the light filling oil separation heating and viscosity reduction gathering and transportation process
4.1.2.3 There are light crude oil resources near the heavy oil kitchen, and the light crude oil heating and viscosity reduction gathering and transportation process
4.1.2.4 If the above conditions cannot be met, it is advisable to use the gathering and transportation process of adding active water or other methods to reduce viscosity.
4.1.3 Design capacity is determined according to the following conditions
4.1.3.1 Thermal recovery equipment and oil pipelines are based on the single well production provided by the development design, taking into account the source water content of 50% to 70%. When liquid addition is required, the total liquid volume after the added liquid volume is calculated and determined.
4.1.3.2 The design capacity of the metering transfer station and the gathering and transportation pipeline is determined according to the sum of the daily liquid production and the added liquid volume of the oil and gas under its jurisdiction.
4.1.3.3 The design capacity of the oil pump and oil pipeline of the centralized processing station is 1.2→15 times the annual production capacity of the oil and gas under its jurisdiction, and the annual working days are calculated as 365 days. 4.1.3.4 The vertical vault oil storage tank of the centralized processing station: the volume utilization coefficient should be 0.75, the floating roof oil tank should be 0.8, and the oil storage number of the light crude oil and purified oil source oil storage tank should be 1 to 3 days.
4.1.4 Heavy oil gathering and transportation should adopt a two-level station layout (metering station-centralized processing station or joint station. A few transfer stations can be built when necessary. The number of wellheads under the jurisdiction of the metering station should not be less than 6
16.
4.1.5 The back pressure at the wellhead of the pumping well should be 1.0~1.5MPa. 4.2 Collection and metering of heavy oil
4.2.1 In addition to meeting the conventional operations such as measuring oil pressure, casing pressure: oil output temperature, sampling, line sweeping, steam power, etc., the thermal recovery well site should also meet the requirements of thermal recovery process downhole operations and testing, oil pipeline wax cleaning, liquid wiping, etc. 4.2.2 The design of oil-gathering pipelines virtually meets the following requirements 4.2.2.1 According to different gathering and transportation processes, consider the changes in crude oil water content, transmission medium flow, temperature, gas-liquid ratio and liquid phase viscosity at different stages of thermal recovery. , reasonably select various parameters:
4.2.2.2 The diameter of the pipeline shall be determined according to the following provisions. The friction resistance along the oil and gas mixed pipeline can be calculated by the Beck method and the Dukler method, or other methods proven to be feasible in production practice. 4.2.2.3 Check the thermal working conditions of the oil gathering pipeline at 0.75 times the designed oil volume. 4.2.2.4 The oil gathering pipeline can be laid on the ground with low supports, buried underground or overhead depending on the terrain, landform and groundwater level. When laid on the ground: the bottom of the pipe should not be less than 0.3m from the ground; when buried underground: the top of the pipe should not be less than 0.8m from the ground in the cultivated area; when erected, the clearance height should not be less than 2.5m: the part on the highway should not be less than 6.0mg
4.2.2.5 The oil gathering pipeline laid on the ground or buried should be equipped with Install thermal compensator: The oil gathering pipeline must be equipped with fixed supports at the well site and in and out of the station. The crossing of ditches and roads should be determined according to the specific situation.
4.2.2.6 The temperature resistance levels of oil pipelines, pipe fittings and insulation materials are as follows: (1) Below 100°C for conventional oil production;
(2) Not less than 160°C for steam injection thermal production: (3) When using the injection and production platform-pipeline, it shall be determined according to the requirements of the steam injection pipeline. 4.2.3 The metering of heavy oil shall meet the following requirements
4.2.3.1 The daily production of oil, gas and water in oil wells shall be measured. When the gas-oil ratio is greater than 10m/t, a separator with an instrument can be used for periodic continuous metering. The continuous metering time for each well is generally 4 to 8h each time
When the gas-oil ratio is less than 10m,t, other metering methods can be used. 4.2.3 .2 The comprehensive error of oil well production measurement should be within ±10%. 4.2.3.3 The water-containing crude oil and purified crude oil are transported outward and continuously measured by flow meter. The error requirements and instrument use and calibration should comply with the relevant provisions of the current industry standard "Runtian Oil and Gas Gathering and Transportation Design Specifications".
4.3 Oil and sand removalwwW.bzxz.Net
4.3.1 The pressure tank should be sanded manually or mechanically, and the pressure vessel should be hydraulically sanded without stopping production.
4.3.2 When hydraulic sand is used. The nozzle spray speed should be 5~10m/s, and the water spray intensity of each nozzle should not be less than 0.8mh
4.3.3 The displacement of the sand flushing pump is determined by the water spray volume of the nozzles working at the same time. The head should be greater than the sum of the pressure drop along the sand flushing pump to the farthest nozzle, the operating pressure of the pressure vessel, and the nozzle pressure drop.
The sand discharge pipeline of the pressure vessel should include a reasonable selection of flow rate to prevent sand settling. 4.3.4
The sand removal process design shall consider the collection and treatment measures of sand to prevent environmental pollution.
4.4 Oil and gas separation
4.4.1 In addition to complying with this specification, the design of heavy oil and gas separation shall also comply with the provisions of the current industry standard "Oil and Gas Separator Specification". ·4.4.22
The residence time of liquid in the oil and gas two-phase separator is 510min4.4.3
The residence time of liquid in the oil, gas and water three-phase separator is 1030min. The vertical type is suitable for heavy oil and gas metering separator: the number of wells under the jurisdiction of a single metering separator should not be more than 10. When the gas-oil ratio is lower than 10m2/t, a suction oil pump is installed at the outlet of the metering separator.
4.4.5 Horizontal separators are recommended for heavy oil and gas production. The separation stages are 1~2. The number of separators is generally not less than . When multiple separators are installed in parallel, the design of the inlet and outlet pipelines should ensure that oil, gas and water are evenly distributed.8. The storage period of light crude oil and purified source oil storage tanks should be 1 to 3 days.
4.1.4 Heavy oil gathering and transportation should adopt a two-level station layout (metering station-centralized processing station or joint station. A few transfer stations can be built when necessary. The number of wellheads under the jurisdiction of the metering station should not be less than 6
16.
4.1.5 The back pressure at the wellhead of the pumping well should be 1.0~1.5MPa. 4.2 Collection and metering of heavy oil
4.2.1 In addition to meeting the conventional operations such as measuring oil pressure, casing pressure: oil output temperature, sampling, line sweeping, steam power, etc., the thermal recovery well site should also meet the requirements of thermal recovery process downhole operations and testing, oil pipeline wax cleaning, liquid wiping, etc. 4.2.2 The design of oil-gathering pipelines virtually meets the following requirements 4.2.2.1 According to different gathering and transportation processes, consider the changes in crude oil water content, transmission medium flow, temperature, gas-liquid ratio and liquid phase viscosity at different stages of thermal recovery. , reasonably select various parameters:
4.2.2.2 The diameter of the pipeline shall be determined according to the following provisions. The friction resistance along the oil and gas mixed pipeline can be calculated by the Beck method and the Dukler method, or other methods proven to be feasible in production practice. 4.2.2.3 Check the thermal working conditions of the oil gathering pipeline at 0.75 times the designed oil volume. 4.2.2.4 The oil gathering pipeline can be laid on the ground with low supports, buried underground or overhead depending on the terrain, landform and groundwater level. When laid on the ground: the bottom of the pipe should not be less than 0.3m from the ground; when buried underground: the top of the pipe should not be less than 0.8m from the ground in the cultivated area; when erected, the clearance height should not be less than 2.5m: the part on the highway should not be less than 6.0mg
4.2.2.5 The oil gathering pipeline laid on the ground or buried should be equipped with Install thermal compensator: The oil gathering pipeline must be equipped with fixed supports at the well site and in and out of the station. The crossing of ditches and roads should be determined according to the specific situation.
4.2.2.6 The temperature resistance levels of oil pipelines, pipe fittings and insulation materials are as follows: (1) Below 100°C for conventional oil production;
(2) Not less than 160°C for steam injection thermal production: (3) When using the injection and production platform-pipeline, it shall be determined according to the requirements of the steam injection pipeline. 4.2.3 The metering of heavy oil shall meet the following requirements
4.2.3.1 The daily production of oil, gas and water in oil wells shall be measured. When the gas-oil ratio is greater than 10m/t, a separator with an instrument can be used for periodic continuous metering. The continuous metering time for each well is generally 4 to 8h each time
When the gas-oil ratio is less than 10m,t, other metering methods can be used. 4.2.3 .2 The comprehensive error of oil well production measurement should be within ±10%. 4.2.3.3 The water-containing crude oil and purified crude oil are transported outward and continuously measured by flow meter. The error requirements and instrument use and calibration should comply with the relevant provisions of the current industry standard "Runtian Oil and Gas Gathering and Transportation Design Specifications".
4.3 Oil and sand removal
4.3.1 The pressure tank should be sanded manually or mechanically, and the pressure vessel should be hydraulically sanded without stopping production.
4.3.2 When hydraulic sand is used. The nozzle spray speed should be 5~10m/s, and the water spray intensity of each nozzle should not be less than 0.8mh
4.3.3 The displacement of the sand flushing pump is determined by the water spray volume of the nozzles working at the same time. The head should be greater than the sum of the pressure drop along the sand flushing pump to the farthest nozzle, the operating pressure of the pressure vessel, and the nozzle pressure drop.
The sand discharge pipeline of the pressure vessel should include a reasonable selection of flow rate to prevent sand settling. 4.3.4
The sand removal process design shall consider the collection and treatment measures of sand to prevent environmental pollution.
4.4 Oil and gas separation
4.4.1 In addition to complying with this specification, the design of heavy oil and gas separation shall also comply with the provisions of the current industry standard "Oil and Gas Separator Specification". ·4.4.22
The residence time of liquid in the oil and gas two-phase separator is 510min4.4.3
The residence time of liquid in the oil, gas and water three-phase separator is 1030min. The vertical type is suitable for heavy oil and gas metering separator: the number of wells under the jurisdiction of a single metering separator should not be more than 10. When the gas-oil ratio is lower than 10m2/t, a suction oil pump is installed at the outlet of the metering separator.
4.4.5 Horizontal separators are recommended for heavy oil and gas production. The separation stages are 1~2. The number of separators is generally not less than . When multiple separators are installed in parallel, the design of the inlet and outlet pipelines should ensure that oil, gas and water are evenly distributed.8. The storage period of light crude oil and purified source oil storage tanks should be 1 to 3 days.
4.1.4 Heavy oil gathering and transportation should adopt a two-level station layout (metering station-centralized processing station or joint station. A few transfer stations can be built when necessary. The number of wellheads under the jurisdiction of the metering station should not be less than 6
16.
4.1.5 The back pressure at the wellhead of the pumping well should be 1.0~1.5MPa. 4.2 Collection and metering of heavy oil
4.2.1 In addition to meeting the conventional operations such as measuring oil pressure, casing pressure: oil output temperature, sampling, line sweeping, steam power, etc., the thermal recovery well site should also meet the requirements of thermal recovery process downhole operations and testing, oil pipeline wax cleaning, liquid wiping, etc. 4.2.2 The design of oil-gathering pipelines virtually meets the following requirements 4.2.2.1 According to different gathering and transportation processes, consider the changes in crude oil water content, transmission medium flow, temperature, gas-liquid ratio and liquid phase viscosity at different stages of thermal recovery. , reasonably select various parameters:
4.2.2.2 The diameter of the pipeline shall be determined according to the following provisions. The friction resistance along the oil and gas mixed pipeline can be calculated by the Beck method and the Dukler method, or other methods proven to be feasible in production practice. 4.2.2.3 Check the thermal working conditions of the oil gathering pipeline at 0.75 times the designed oil volume. 4.2.2.4 The oil gathering pipeline can be laid on the ground with low supports, buried underground or overhead depending on the terrain, landform and groundwater level. When laid on the ground: the bottom of the pipe should not be less than 0.3m from the ground; when buried underground: the top of the pipe should not be less than 0.8m from the ground in the cultivated area; when erected, the clearance height should not be less than 2.5m: the part on the highway should not be less than 6.0mg
4.2.2.5 The oil gathering pipeline laid on the ground or buried should be equipped with Install thermal compensator: The oil gathering pipeline must be equipped with fixed supports at the well site and in and out of the station. The crossing of ditches and roads should be determined according to the specific situation.
4.2.2.6 The temperature resistance levels of oil pipelines, pipe fittings and insulation materials are as follows: (1) Below 100°C for conventional oil production;
(2) Not less than 160°C for steam injection thermal production: (3) When using the injection and production platform-pipeline, it shall be determined according to the requirements of the steam injection pipeline. 4.2.3 The metering of heavy oil shall meet the following requirements
4.2.3.1 The daily production of oil, gas and water in oil wells shall be measured. When the gas-oil ratio is greater than 10m/t, a separator with an instrument can be used for periodic continuous metering. The continuous metering time for each well is generally 4 to 8h each time
When the gas-oil ratio is less than 10m,t, other metering methods can be used. 4.2.3 .2 The comprehensive error of oil well production measurement should be within ±10%. 4.2.3.3 The water-containing crude oil and purified crude oil are transported outward and continuously measured by flow meter. The error requirements and instrument use and calibration should comply with the relevant provisions of the current industry standard "Runtian Oil and Gas Gathering and Transportation Design Specifications".
4.3 Oil and sand removal
4.3.1 The pressure tank should be sanded manually or mechanically, and the pressure vessel should be hydraulically sanded without stopping production.
4.3.2 When hydraulic sand is used. The nozzle spray speed should be 5~10m/s, and the water spray intensity of each nozzle should not be less than 0.8mh
4.3.3 The displacement of the sand flushing pump is determined by the water spray volume of the nozzles working at the same time. The head should be greater than the sum of the pressure drop along the sand flushing pump to the farthest nozzle, the operating pressure of the pressure vessel, and the nozzle pressure drop.
The sand discharge pipeline of the pressure vessel should include a reasonable selection of flow rate to prevent sand settling. 4.3.4
The sand removal process design shall consider the collection and treatment measures of sand to prevent environmental pollution.
4.4 Oil and gas separation
4.4.1 In addition to complying with this specification, the design of heavy oil and gas separation shall also comply with the provisions of the current industry standard "Oil and Gas Separator Specification". ·4.4.22
The residence time of liquid in the oil and gas two-phase separator is 510min4.4.3
The residence time of liquid in the oil, gas and water three-phase separator is 1030min. The vertical type is suitable for heavy oil and gas metering separator: the number of wells under the jurisdiction of a single metering separator should not be more than 10. When the gas-oil ratio is lower than 10m2/t, a suction oil pump is installed at the outlet of the metering separator.
4.4.5 Horizontal separators are recommended for heavy oil and gas production. The separation stages are 1~2. The number of separators is generally not less than . When multiple separators are installed in parallel, the design of the inlet and outlet pipelines should ensure that oil, gas and water are evenly distributed.
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