SY/T 0308-1996 Technical specification for water injection in offshore petroleum projects
Some standard content:
Petroleum and Natural Gas Industry Standard of the People's Republic of China Technical Specification of Water Injection for Petroleum Engineering in Beach-Shallow SeaSY/ T 0308-96
Editor: Liaohe Petroleum Exploration Bureau Survey and Design Institute, Oil Construction No. 2 Company Approval Department: China National Petroleum Corporation Petroleum Industry Press
1997 Beijing
General Provisions
Equipment and Devices
Device Layout and Process Installation
Device Layout*
Process Installation·
Pipeline and Valve Selection
Electrical and Instrument Control
Construction and Acceptance
Equipment Installation
Pipeline Installation
Pressure Test
Purge and Cleaning
Trial Operation
Completion Acceptance
Appendix A
Terms Used in This Code Ming
Attachment Explanation
........
Industry State Electric Bar
Technical Specifications for Water Injection in Beach and Offshore Oil Projects Explanation of Articles 9
(11)
(18)
Document of China National Petroleum Corporation
(96) CNPC Technical Supervision No. 642
Notice on the Approval and Release of Fourteen Oil and Gas Industry Standards including "Design Specifications for Gas Field Gas Gathering Projects" To all relevant units:
Fourteen oil and gas industry standards including "Design Specifications for Gas Field Gas Gathering Projects" (draft) have been reviewed and approved: they are now approved as oil and gas industry standards and are hereby released. The numbers and names of the various standards are as follows: No.
SY/T 0010-96
SY /T 0011-96
SY 0043--96
SY/ T 0091-96
SY/ T 030696
SY/T 0307-96
Design specification for gas field gas gathering engineering (replace
SYJ 10-86)
Design specification for natural gas purification plant in gas field (replace SYJ 11-85)
Coloring standard for surface pipelines and equipment in oil and gas fields (replace SYJ 43-89)
Design specification for computer control system of oil and gas fields and pipelines
Technical specification for thermal heating of offshore oil projectsTechnical specification for vertical cylindrical steel welded fixed-roof storage tanks in offshore oil projects
SYT 0308--96
SYT 0309-96
SY/T 0310-96
SY / T 031196
SY/T 031296
SY/ T 0313-96
SY/ T 0314-96
SY / T 0305-96
Technical specification for water injection in offshore oil projects
Technical specification for produced water treatment in offshore oil projects
Technical specification for instrumentation and automatic control in offshore oil projects
Technical specification for communication in offshore oil projects
Technical specification for equipment in offshore oil projects
Technical specification for wharf design and construction in offshore oil projects
Technical specification for structure design and construction of offshore concrete platforms
Technical specification for pipeline systems in offshore oil projects
The above standards shall come into force on July 1, 1997 China National Petroleum Corporation
December 3, 1996
1 General provisions
1.01 This specification is formulated to standardize the design and construction acceptance of offshore oilfield water injection projects: to ensure safety, reliability, advanced technology, economical and practical, environmental protection, and to increase the amount of engineering work.
1.0.2 This specification applies to the design, construction and acceptance of water injection for the construction, expansion and construction of artificial islands or platforms in Tanhai Yousi.
1.0.3 The design of water injection projects shall comply with the overall development plan of Tanhai oilfields and follow the principle of combining short-term and long-term development.
1.0.4 The design and construction of water injection projects shall properly handle the relationship with salt industry, fishery, aquaculture and shipping. bzxz.net
1.0.5 The design and construction of water injection projects shall actively adopt mature and effective new technologies, new processes, new materials and new equipment on the basis of continuous summarization of production practice experience and scientific experiments.
1.06 In addition to implementing this specification, the design and construction of Tanshi axis water injection projects shall also comply with the provisions of relevant current national and industry standards (specifications). 1.0.7 Reference standards
GB57491985 Sanitary standard for drinking waterSYJ 5-89 Oil field water injection design specification
SY6-89 Oilfield oily wastewater treatment design specificationSY7T0307-96 Technical specification for vertical cylindrical steel welded fixed pre-storage tanks for offshore oil projects
SY 4011-93 Installation, construction and acceptance specification for water injection pumpsSYT4086-95 Technical specification for design and construction of pipeline networks on offshore structuresSY/T 4088-95 Technical specification for water supply and drainage of offshore oil projectsSY 7T 409195SY/T 409295
Technical specification for corrosion protection of offshore oilfields,
Technical specification for thermal insulation of offshore oilfields
SY/T4102-95 Specification for inspection and installation of valvesSY/T5329-94 Recommended indicators and analysis methods for water quality of water injection in clastic reservoirsSY5747-1995 Safety rules for offshore oilfield construction projectsSafety rules for offshore fixed platforms of the Ministry of Energy of the People's Republic of China (February 13, 1992)
China Classification Society
Standards for classification and construction of offshore fixed platforms (1992) 2 General provisions
201 The design of water injection projects shall be based on the overall design and development plan of offshore oilfields, and shall be compatible with projects such as primary processing of crude oil and treatment of produced water from oilfields. It may be completed in one go or in stages.
2.0.2 The construction scale of water injection pump station should meet the needs of increasing water content of crude oil and changes in crude oil production (excluding the amount of water used for washing and merging water): the water injection process should be determined according to factors such as the well network layout, the size of the water injection base and the level of water injection pressure. 2.0.3 The amount of water used for water injection in the offshore oil field (excluding the amount of water used for well washing) should be calculated according to formula (2.0.3).
Qz= BCz2rlb +
(1-- m)r
Water consumption for water injection, md;
Injection-production ratio:
Water injection coefficient, take 1.01.21
Oil production, td:
Volume coefficient of crude oil;
Surface crude oil density, t/m:
Injection water density, tm:
Water content of source oil (m/m)%
Water for water injection can be oil produced by oil, seawater, groundwater, surface water that meets the water quality requirements for water injection.
2.0.5 Water quality indicators for water injection should comply with the water quality standards formulated by this oilfield. If there is no standard for this oilfield, it can be implemented according to the "Recommended Indicators and Analysis Methods for Water Quality for Water Injection in Clastic Reservoirs".
2.0.6 The wellhead pressure of the water injection well shall be determined by the oilfield development plan. 2.0.7 The water injection pump shall be a reliable and efficient centrifugal pump or reciprocating pump. .0 The water injection system must be separated from the domestic water and other industrial water systems. All kinds of sewage or water injection water that does not meet the "Sanitary Standards for Drinking Water" are prohibited from entering the domestic drinking water system. High-pressure water shall not be used for other purposes. 2.0.9 The auxiliary facilities of the water injection project shall be considered together with other production auxiliary facilities. 2.0.10 The driving mode of the water injection pump shall be determined through technical comparison. When a gas turbine is selected as the power source, the following provisions shall be met: 2.0.10.1. There are sufficient natural gas resources and processing capacity. 2.0.10.2 The oilfield requires a certain amount of water injection load and the heat load of the cogeneration required all year round.
2.0. The construction of water injection projects shall comply with the requirements of the design documents. Any modification of the design or substitution of materials shall be subject to the consent of the design department and the opinions shall be signed. 2.012 The equipment and materials used in the project shall comply with the design requirements and have factory quality certification documents. The materials of important parts shall be re-inspected. The measuring equipment used in the project shall be calibrated before installation. 2.0.13 The water injection project shall comply with the provisions of this specification. The contents not specified in this specification shall comply with the provisions of the following specifications.
2.0.13.1 The installation of pumps and pipelines shall comply with the provisions of the "Technical Specifications for Water Supply and Drainage of Beach and Sea Petroleum Engineering" and the "Technical Specifications for the Design and Construction of Beach and Sea Structures". 2.013.2 The installation of water injection pumps shall comply with the provisions of the "Specifications for the Construction and Acceptance of Water Injection Pump Equipment".
2.0.13.3 The construction of fixed-roof storage tanks shall comply with the provisions of the "Technical Specifications for Vertical Circular Simple Steel Welded Fixed Storage Tanks for Beach and Sea Petroleum Engineering". 2.0.13.4 The construction of anti-corrosion engineering shall comply with the provisions of the "Technical Specifications for Anti-corrosion of Beach and Sea Petroleum Engineering".
2.0.13.5 The construction of insulation engineering shall comply with the provisions of the "Technical Specifications for Insulation of Beach and Sea Petroleum Engineering".
2.013.6 The installation of valves shall comply with the provisions of the "Specifications for Inspection and Installation of Valves".
3 Equipment and Devices
3.0.1 The water injection pump may not be equipped with a pump.
3.0.2 A water storage tank can be set up: it can also be used in conjunction with a water supply or oilfield produced water treatment device. The total effective volume of water storage should be calculated based on the maximum water consumption of the pump station for 1 to 2 hours. If the water source guarantee capacity is poor, the total effective volume can be appropriately increased. 3.0.3 When the water quality of the injected water causes serious corrosion of the equipment and pipelines, the water storage tank should be sealed and oxygen-proof. Its oxygen-isolating medium can be natural gas cyanide, etc. 3.0.4 When injecting clean water or seawater and oilfield produced water, it is advisable to mix them before the water injection pump. When the water quality is unstable, a dosing device should be installed. Its equipment should be placed in the water supply and oil production water treatment device area. Oil lubrication and water cooling devices should be selected according to the requirements of the water injection unit. 3.0.6 The water cooling device must meet the water volume, water pressure and water temperature required by the cooled equipment. Cooling water should be recycled. Cooling water should be clean water with stable water quality. 4 Device layout and process installation 4.1 Device layout 4.1.1: The water injection device consists of water injection pump units, water storage tanks, oil lubrication, water cooling, closed systems and other facilities. 4.12 The layout of the water injection device should be reasonable: there should be space and venue for equipment hoisting, operation and maintenance. Laboratory and instrumentation should be considered uniformly. 4.1.3 Fire prevention requirements shall comply with the relevant provisions of the "Safety Rules for Beach and Sea Petroleum Construction Projects".
4.1.4 Water tanks and water pipes should not be located above or behind the switchboard and should be kept away from the switchboard.
4.2 Process installation
4.2.1 The installation of pipelines and gates shall comply with the provisions of the "Technical Specifications for Design and Construction of Pipeline Networks on Beach and Sea Structures".
4.2.2 The water injection pump shall ensure positive pressure water supply, and the installation of its inlet and outlet pipes shall comply with the following provisions:
4.2.2.1 The installation of centrifugal pump inlet and outlet pipes shall comply with the following provisions (1) The water inlet pipe of the pump shall be equipped with a shut-off valve, water meter, filter, eccentric reducer, thermometer and vacuum pressure gauge;
(2) The water outlet pipe of the pump shall be equipped with a pressure gauge, thermometer, vent, check valve, regulating valve and shut-off valve
(3) The root saw requires a return pipe and return valve to be installed at the pump outlet. 4.2.2.2 The installation of inlet and outlet pipes of reciprocating pumps shall comply with the following provisions: (1) The pump inlet pipe shall be installed with a shut-off valve, water meter, vibration damper and pressure gauge; (2) The pump shall be equipped with a safety valve, otherwise a safety valve shall be installed on the pump output pipe:
(3) The outlet pipe shall be installed with a pressure gauge, pressure stabilizer, pressure relief pipe, check valve, regulating valve and shut-off valve, and pipe piers and pipe clamps shall be installed at appropriate locations: (4) The pump outlet shall be equipped with a return pipe and return valve; (5) The pump can be equipped with an elevated tank or a water feeding pump for water supply. 4.2.3 The installation of lubricating and cleaning oil devices and pipelines shall meet the following requirements: 14.2.3.1 The oil tank shall be equipped with oil mark, breathing valve, oil filling hole, drain port (which can also be used as sampling port and oil outlet. If multiple units are installed, connecting pipes shall be provided. 4.2.3.2 The oil pump shall be a gear oil pump, which can be self-priming. The pump outlet shall have an outlet valve, a return valve and a pressure gauge.
4.2.3.3 The cooler shall be water-cooled, equipped with inlet and outlet valves (when the return water adopts a dispersed outlet, no valve is required) and a liquid flow indicator. 4.2.3.4 The lubricating oil pipeline shall be made of stainless steel pipe. 4.2.3.5 The return oil pipeline (the pipe from the unit lubricating oil outlet to the oil tank) shall be made of stainless steel pipe. The pipeline should be designed according to gravity flow. The oil tank should be placed at the lowest point, close to the unit, and easy to operate. The oil return pipeline must maintain a certain slope.
4.2.4 The cooling water pipeline should meet the following requirements: 4.2.4.1 The cooling water pipeline should be equipped with a low pressure alarm. 4.2.4.2 The cooling circulating water and make-up water should be measured by water meters. When the water volume is less than 5m/d and there is a discharge outlet, it is generally not recycled: For pump stations with large water consumption, cooling water should be recycled.
4.2.5 The process installation of water storage tanks should meet the following requirements: 4.2.5.1 The installation height of the clean water inlet pipeline should be higher than the highest liquid level of the tank to prevent Sewage flows back into the clean water system.
4.2.5.2 The water inlet pipe and high-pressure return pipe of the water storage tank should be located away from the tank outlet pipe (i.e. the pump suction pipe).
4.2.5.3 The overflow pipe of the sewage tank should adopt an inverted U-shaped pipe: its siphon breaking port should be no less than DN50, and the diameter of the overflow pipe should be no less than the diameter of the water inlet pipe: valves shall not be installed in the pipe.
The sewage tank should be equipped with an oil receiving port (groove).
The overflow pipe of the closed water tank should be equipped with a water seal pipe, and the outlet of the oil discharge pipe should also be equipped with a liquid seal when it is connected to the atmosphere.
4.2.5.6 The water storage tank should be Set up ladders, guardrail platforms, manholes, light holes, liquid level test ports, sewage outlets, and gas pipes: Oily sewage tanks should have heating and oil discharge facilities, and closed storage tanks should be equipped with mechanical breathing valves. Hydraulic safety valves and pressure vent valves. 4.2.6 The water distribution valve group should meet the requirements of water distribution, cut-off, regulation, pressure and flow display, sampling, etc.
4.2.7 Control valves should be installed before and after the wellhead water meter. A pressure relief valve should be installed before the control palm downstream of the water meter: a back pressure gauge should be installed after the downstream control valve. 4.2.8
The injection wellhead should adopt a four-valve or six-valve type. In cold areas, the injection pipeline should have anti-freezing measures, and electric heating tape mixing should be used.2 The oil pump should be a gear oil pump, which can be self-priming, and the pump outlet should be equipped with an outlet valve, a return valve and a pressure gauge.
4.2.3.3 The cooler should be water-cooled, equipped with inlet and outlet valves (no valve is required when the return water adopts a dispersed outlet) and a liquid flow indicator. 4.2.3.4 The lubricating oil pipeline should be made of stainless steel pipes. 4.2.3.5 The return oil pipeline (the pipeline from the unit lubricating oil outlet to the oil tank) should be designed according to gravity flow. The oil tank should be placed at the lowest point, close to the unit, and easy to operate. The return oil pipeline must maintain a certain slope.
4.2.4 The cooling water pipeline should meet the following requirements: 4.2.4.1 The cooling water pipeline should be equipped with a low pressure alarm. 4.2.4.2 The cooling circulating water and make-up water should be measured by water meters. When the water volume is less than 5m/d and there is a discharge outlet, it is generally not recycled: For pump stations with large water consumption, cooling water should be recycled.
4.2.5 The installation process of water storage tanks shall meet the following requirements: 4.2.5.1 The installation height of the clean water inlet pipe shall be higher than the highest liquid level of the tank to prevent sewage from flowing back into the clean water system.
4.2.5.2 The water inlet pipe and high-pressure return pipe of the water storage tank shall be located away from the tank outlet pipe (i.e. the pump suction pipe)
4.2.5.3 The overflow pipe of the sewage tank shall adopt an inverted U-shaped pipe: its siphon breaking port shall not be less than DN50, and the overflow pipe diameter shall not be less than the water inlet pipe diameter: valves shall not be installed in the pipeline.
The sewage tank shall be equipped with an oil receiving port (trough).
The overflow pipe of the closed water tank should be equipped with a water seal pipe, and the outlet of the oil discharge pipe should also be equipped with a liquid seal when it is connected to the atmosphere. 4.2.5.5
4.2.5.6 The water storage tank should be equipped with a ladder, guardrail platform, manhole light hole, liquid level test port, sewage outlet, and air pipe: the oily sewage tank should have heating and oil discharge facilities, and the closed storage tank should be equipped with a mechanical breathing valve. Hydraulic safety valve and pressure vent valve. 4.2.6 The water distribution valve group should meet the requirements of water distribution, cut-off, regulation, pressure and flow display, sampling, etc.
4.2.7 Control valves should be installed before and after the wellhead water meter. A pressure relief valve should be installed before the control palm downstream of the water meter: a back pressure gauge should be installed after the downstream control valve. 4.2.8
The water injection wellhead should adopt a four-valve or six-valve type. In cold areas, the water injection pipeline should have anti-freezing measures, and electric heating tape mixing should be used.2 The oil pump should be a gear oil pump, which can be self-priming, and the pump outlet should be equipped with an outlet valve, a return valve and a pressure gauge.
4.2.3.3 The cooler should be water-cooled, equipped with inlet and outlet valves (no valve is required when the return water adopts a dispersed outlet) and a liquid flow indicator. 4.2.3.4 The lubricating oil pipeline should be made of stainless steel pipes. 4.2.3.5 The return oil pipeline (the pipeline from the unit lubricating oil outlet to the oil tank) should be designed according to gravity flow. The oil tank should be placed at the lowest point, close to the unit, and easy to operate. The return oil pipeline must maintain a certain slope.
4.2.4 The cooling water pipeline should meet the following requirements: 4.2.4.1 The cooling water pipeline should be equipped with a low pressure alarm. 4.2.4.2 The cooling circulating water and make-up water should be measured by water meters. When the water volume is less than 5m/d and there is a discharge outlet, it is generally not recycled: For pump stations with large water consumption, cooling water should be recycled.
4.2.5 The installation process of water storage tanks shall meet the following requirements: 4.2.5.1 The installation height of the clean water inlet pipe shall be higher than the highest liquid level of the tank to prevent sewage from flowing back into the clean water system.
4.2.5.2 The water inlet pipe and high-pressure return pipe of the water storage tank shall be located away from the tank outlet pipe (i.e. the pump suction pipe)
4.2.5.3 The overflow pipe of the sewage tank shall adopt an inverted U-shaped pipe: its siphon breaking port shall not be less than DN50, and the overflow pipe diameter shall not be less than the water inlet pipe diameter: valves shall not be installed in the pipeline.
The sewage tank shall be equipped with an oil receiving port (trough).
The overflow pipe of the closed water tank should be equipped with a water seal pipe, and the outlet of the oil discharge pipe should also be equipped with a liquid seal when it is connected to the atmosphere. 4.2.5.5
4.2.5.6 The water storage tank should be equipped with a ladder, guardrail platform, manhole light hole, liquid level test port, sewage outlet, and air pipe: the oily sewage tank should have heating and oil discharge facilities, and the closed storage tank should be equipped with a mechanical breathing valve. Hydraulic safety valve and pressure vent valve. 4.2.6 The water distribution valve group should meet the requirements of water distribution, cut-off, regulation, pressure and flow display, sampling, etc.
4.2.7 Control valves should be installed before and after the wellhead water meter. A pressure relief valve should be installed before the control palm downstream of the water meter: a back pressure gauge should be installed after the downstream control valve. 4.2.8
The water injection wellhead should adopt a four-valve or six-valve type. In cold areas, the water injection pipeline should have anti-freezing measures, and electric heating tape mixing should be used.
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