SY/T 5053.2-2001 Surface blowout preventer and control device Control device
Some standard content:
ICS 75.180.10
Registration No.: 9593—2001
Petroleum and Natural Gas Industry Standard of the People's Republic of China SY/T 5053.2—2001
Surface BOP and Control Device
Control Device
Control system for surface
mounted BOP stacks
2001-09-24 Issued
National Economic and Trade Commission
2002-01-01 ImplementationwwW.bzxz.Net
SY/T 5053.2--2001
2 Reference standards
Product classification and model compilation method
Technical requirements
6 Test methods
Inspection rules
Marking and instruction manual
9 Packaging, transportation and storage
Appendix A (Appendix to the standard)
Appendix B (Appendix to the standard)
Material requirements
Model compilation method for main components of surface blowout preventer control device 9
SY/T 5053.2—2001
This standard is revised on the basis of SY5053.2-91 "Surface blowout preventer and control device control device": The main technical indicators of this standard are revised in accordance with API Spec 16L (ANSI/API Spcc 16D) "Specification for control systems of drilling control equipment". Compared with SY5053.2-91, this standard adds the content of "environmental adaptability" and stipulates the working environment temperature of the ground blowout preventer control device. It also adds Appendix A "Material Requirements" to control the manufacturing and outsourced materials. Through this revision, this standard is closer to the international advanced standards and can guide the high-level development of ground blowout preventer control devices. From the date of entry into force, this standard will replace SY5053.2-91 at the same time. Appendix A and Appendix B of this standard are the appendices of the standard. This standard is proposed and managed by the National Petroleum Drilling Equipment and Tools Standardization Technical Committee. Drafting units of this standard: Mechanical Research Institute of Petroleum Exploration and Development Research Institute, Beijing Petroleum Machinery Plant, Sichuan Drilling and Production Technology Research Institute
Main drafters of this standard Chen Xiangkai, Yu Wenzheng, Gao Xiangqian, Zou Lianyang, Zhang Bin This standard was first issued in 1984, revised for the first time in July 1991, and this is the second revision. 1 Scope
Petroleum and Natural Gas Industry Standard of the People's Republic of China Surface BOP and Control Device
Control Device
Control systcm for surface
mounted BOP stacks
SY/T 5053.2—2001
Replaces SY 5053.2—91
This standard specifies the product classification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of surface BOP control devices.
This standard applies to the design, manufacture and inspection of surface BOP control devices for oil and gas drilling and workover. 2 Reference Standards
The provisions contained in the following standards constitute the provisions of this standard by reference in this standard. When this standard is published, the versions shown are valid: all standards will be revised, and the parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T3766—1983 General technical conditions for hydraulic systems GB/T4942.2-1993 Protection grades for low-voltage electrical enclosures GB/T 5721—1993 General provisions for marking, packaging, transportation and storage of rubber sealing products GB/T8923—1988 Rust grade and rust removal grade of steel surface before painting GB9969.1—1998 General provisions for instruction manuals of industrial products GB/T12716-1991 60° tapered pipe thread
SY0025-95 Classification of locations for electrical installations in petroleum facilities SY5308—87 General technical conditions for painting of petroleum drilling and production machinery products Confirmed in 1998
SY/T5443—2001 Hydraulic and pneumatic components specifically for ground blowout preventer control devices HG/T233[—1592 Capsules for liquid positive isolation accumulators 3 Definitions
This standard adopts the following definitions.
3.1 Control systems for surface BOP stacks are installed on land and offshore drilling platforms. They are composed of a selector console (also known as an accumulator system), etc. They can store a certain amount of hydraulic energy and provide sufficient pressure and flow to close the control system of the blowout preventer group and the hydraulic valve. 3.2 Closing time response time
The time from pulling the operating valve handle on the driller's console to the blowout preventer (or hydraulic valve) being closed and sealing is called the closing time. Whether the outlet pressure of the pressure regulating valve has returned to the adjusted outlet pressure can be used to determine whether the blowout preventer has been closed and sealed. 3.3 Control delay time: refers to the time from pulling the operating valve handle on the driller's console to the remote console's three-position four-way rotary valve completing the action: 3.4 Nominal pressure Tominal pressure
The nominal repulsion defined by the basic parameters of the system. Approved by the State Economic and Trade Commission on September 24, 2001 and implemented on January 1, 2002
3.5 Working pressureworkingpressure
The actual working pressure of each blowout preventer
3.6 Inflation pressureinflationpressureSY/T5053.2—2001
The gas pressure before the accumulator is filled with liquid. This pressure is less than the nominal pressure. 3.7 Remaining pressureremainingpressureAfter the accumulator releases most of the nitrogen, the pressure generated by a small amount of nitrogen is retained to prevent air from backflowing into the airbag. 3.8 Useful liquid volume of accumulators refers to the amount of liquid discharged when the pressure of the accumulator group drops from 21MPa to 8.4MPa. 3.9 Ambient temperatureambienttemperatureThe air temperature around the ground blowout preventer control device. 4 Product classification and model compilation method
4.1 Product classification
Surface blowout preventer control devices are divided into two types: remote control and non-remote control. According to the remote control method of the three-position four-way rotary valve on the remote control console by the driller's console, it is divided into gas control, hydraulic control, electric-gas control, electric-hydraulic control and other types. 4.2 Division of product specifications
Product specifications are divided according to the nominal total volume of the accumulator group and the number of controlled objects. The nominal total volume and the corresponding number of controlled objects shall comply with the provisions of Table 1.
Table 1 Control objects and nominal total volume of surface blowout preventer control device Control object quantity
Nominal total volume, L
4.3 Product model compilation method
≥125
The model compilation method of surface blowout preventer control device is as follows: FK
≥320
≥640
≥720
≥800
Number of product improvement design, using A, B, C. ·The number of controlled objects is indicated in alphabetical order, the nominal total volume of the accumulator group (L) is indicated in Arabic numerals, and the remote control method is indicated in Arabic numerals: Q-gas control: Y-hydraulic control: DQ-electric control; DY-electro-hydraulic control: non-remote control without symbols represents the ground blowout preventer control device
Example: The ground blowout preventer control device with gas remote control, nominal total volume of accumulator group is 400L, 5 controlled objects, and the first improved design is FKQ400-5A. 5 Technical requirements
5.1 Environmental adaptability
5.1.1 The ground blowout preventer control device must be able to operate within the corresponding ambient temperature range, or perform environmental control, artificially create sealing, 2
SY/T 5053.2—2001
insulation, heating and other conditions, so that the equipment can work within the corresponding temperature range. The classification of ambient temperature is shown in Table 2. Table 2 Environmental classification
Environmental classification
Gas characteristics
Extremely harsh conditions
Maximum temperature
Must have a controllable environment
Minimum temperature
5.1.2 The ground blowout preventer control device with gas control operation mode can work in Class I environment. If the production is equipped with an air dryer to make the air dew point lower than 13℃ or heating measures are taken on the gas system to make the gas system temperature higher than 0℃, it can also work in Class II or lower environment. These measures should be able to prevent ice from forming in the gas pipe and cable to block the pipeline or the pipe and cable from brittle fracture. 5.1.3 The ground BOP control device equipped with the capsule for the hydraulic isolation accumulator in accordance with HG/T2331 shall be able to work in the T class II environment. If the sealing, insulation, heating and other measures are adopted to make the ambient temperature of the accumulator 1 higher than -13°C, it can also work in the class, IV and √ environment. The accumulator equipped with low temperature resistant rubber plug or other types of accumulators are not subject to the above conditions. 5.2 Performance in use
5.2.1 Nominal pressure
The nominal pressure of the ground BOP control device is 2IMPa. The nominal pressure of the pressure pipeline of the ground BOP control device and all the hydraulic valves, hydraulic pumps, pressure controllers, pressure transmitters, liquid-gas switches, etc. used in the ground BOP control device shall be greater than or equal to the nominal pressure of the ground BOP control device.
5.2.2 Closing time
The ground BOP control device shall be able to close any gate BOP within 30s. For annular BOPs with nominal diameter less than 476mm (184in), the closing time should not exceed 30s. For annular BOPs with nominal diameter equal to or greater than 4761un, the closing time should not exceed 45ss. The time to close (or open) the hydraulic valve should be less than the actual closing time of any gate BOP of the BOP group. 5.2.3 Requirements for the group
5.2.3.1 The pump group of the ground BOP control device shall consist of at least two special hydraulic pumps. The power sources of various pumps shall be configured independently. 5.2.3.2 The total flow of the pump group shall meet the following requirements: a) When the accumulator group is not used and the minimum diameter drill pipe used is effectively inserted into the BOP group, the total output liquid volume of the pump group shall be able to close the annular BOP (excluding the diverter) within 2min, open all hydraulic valves, and make the manifold have a pressure of not less than 8.4MPa.
b) The total output fluid volume of the pump group can raise all accumulators from the charging force to the nominal pressure of the surface blowout preventer control device within 15 minutes.
5.2.3.3 At least two of the following overpressure protection devices are used: a) One device is a pressure controller and a liquid-gas switch, which control the electric pump and the air pump respectively. When the output pressure of the pump reaches 21-.7MPa, it can cut off the power source of the recording, and when the system pressure drops to nearly 18.9MPa, the pump will start automatically. b) The other device is usually a relief valve, whose set pressure is not greater than 23.1MPa, and its closing pressure shall not be lower than 18.9MI'a. The system should have a sufficient number of relief valves, and the relief capacity should be at least equal to the flow of the pump group at the nominal pressure. The relief valve should have maximum flow test data (valve parts are tested separately).
SY/T5053.2—2001
5.2.3.4 Between the pump outlet and the overpressure protection device, there should be no isolation valve or other mechanism that affects the operation of the protection device. 5.2.4 Requirements for accumulator group
5.2.4.1 When the pump is not working, the available liquid volume of the accumulator group shall meet the larger of the following two use conditions: a) When the pump is stopped, there is no back pressure in the parallel port and the blowout preventer group is in the fully open position, it is greater than 1.5 times the liquid volume required to close all the blowout preventers in the blowout preventer group.
b) After closing all the blowout preventers, the residual pressure of the accumulator group shall be greater than the minimum working pressure value required to close any ram blowout preventer (when the wellhead pressure is the nominal pressure of the blowout preventer group) (except for the shear ram blowout preventer). 5.2.4.2 The total volume of the accumulator group shall be calculated according to the following formula and shall comply with the provisions of 4.2. V=VR(-)
Where: V—total volume of accumulator group (nitrogen + liquid), L; VR—available liquid volume (according to 5.2.4.1), L; Pn—charging pressure of accumulator (absolute pressure), MPa; P2—the working pressure required for each blowout preventer is different, take the highest value, MPaPi—nominal pressure (absolute pressure) of ground blowout preventer control device, MPa. 5.2.4.3 Only nitrogen is allowed to be used as pre-charging gas for accumulator, and the charging pressure is 7MPa±0.7MPa. The charging pressure shall be marked on the permanent mark of accumulator (or accumulator group). 5.2.4.4 The accumulator shall be compatible with the nominal pressure and pressure liquid of the ground blowout preventer control device. The accumulator manufacturer shall hold a production license issued by the competent authority.
5.2.4.5 The accumulator group shall be designed so that when one or a group of accumulators fails, its capacity loss shall not exceed 25% of the total capacity of the accumulator group.
Each accumulator group shall be equipped with a pressure source isolation valve and a load relief valve to check the charging pressure or discharge the pressure fluid from the accumulator to the oil tank.
5.2.5 Requirements for control manifolds
5.2.5.1 The annular blowout preventer shall be controlled by a dedicated hydraulic circuit with a pressure regulating valve. The outlet pressure setting value of the pressure regulating valve shall not exceed 10.5MPa. The valve's sensitivity to downstream pressure changes shall be controlled within the range of ±1.05MPa. 5.2.5.2 The annular blowout preventer pressure regulating valve shall be remotely operated; in the event of remote control failure, it shall be directly manually operated and/or the set pressure shall be maintained.
5.2.5.3 The hydraulic control circuit shared by other control objects shall be equipped with a pressure regulating valve. This circuit can directly use the pressure fluid of the accumulator to operate the actuator through a bypass valve connected in parallel with the pressure regulating valve. 5.2.5.4 When facing the three-position four-way hydraulic rotary valve, when the handle plate is in the right position, the blowout preventer or hydraulic valve is closed; when the handle is in the left position, the blowout preventer or hydraulic valve is opened. The switch action of the operating valve on the driller's console and the corresponding three-position four-way rotary valve on the remote console should be consistent.
5.2.5.5 The three-position four-way rotary valve that controls the full-closed gate blowout preventer (or shear gate blowout preventer) should be installed with a safety cover that does not hinder remote control operation. When manually operating the valve, its safety cover should be lifted first. 5.2.5.6 A stop valve with a diameter greater than or equal to the diameter of the oil pipeline must be installed as the inlet of the backup pressure source. When the backup pressure source is not in use, the valve should be closed.
5.2.5.7 The control manifold should be equipped with necessary pressure display and position indication devices, and there should be a sign indicating the operating function. 5.2.5.8 The threads of all components and pipe fittings should comply with the provisions of GB/T12716. 5.2.6 Requirements for pressure fluid and fluid tank
5.2.6.1 The hydraulic control device of the ground BOP shall use appropriate pressure fluid. Diesel, kerosene and other similar fluids that may damage the seals shall not be used. If water-based pressure fluid is used and the ambient temperature is below the freezing temperature, sufficient antifreeze shall be added. 5.2.6.2 The effective volume of the fluid tank shall be greater than twice the available fluid volume of the accumulator group. SY/T5053.2—2001
5.2.6,3 The fluid tank shall have a vent hole of sufficient size to prevent pressure from being generated in the fluid tank. 5.2.7 Requirements for the driller's console
5.2.7.1 The control device of the ground BOP used for drilling shall be equipped with at least one driller's console to ensure that the entire system can be operated at least from two locations. The display panel of the driller's console shall intuitively discharge the operating valve according to the shape of a typical BOP group. 5.2.7.2 The driller's console should have the following functions: a) Control the action of all blowout preventers and hydraulic valves; b) Adjust the outlet pressure of the annular blowout preventer pressure regulating valve; e) Control the bypass valve of the manifold pressure regulating valve; d) After operating on the driller's console, the action position of the operating valve can be displayed; e) The accumulator pressure, the outlet pressure of each pressure regulating valve and the gas source force can be displayed. 5.2.7.3 The driller's console used at sea should be equipped with an alarm device that can emit light and sound, and can display the following situations: a) The accumulator pressure is too low;
b) The gas source pressure is too low;
c) The mid-surface of the sheath is too low;
d) The driller's console is working with a backup power supply. 5.2.7.4 Except for the pressure adjustment of the pressure regulating valve, all operating functions on the driller's console require the simultaneous operation of two valves: one is the main valve and the other is the functional valve.
5.2.7.5 When gas remote control is adopted, the length of the gas pipe cable shall not exceed 50mc5.2.7.6 When the driller's console adopts electric remote control, it shall be equipped with a backup power supply. When the main power supply is interrupted, it can automatically switch to the backup power supply. The backup power supply should enable the driller's console to work for at least 2h.5.2.8 When the air-controlled liquid operates the hydraulic rotary valve, the outlet pressure of the pressure regulating valve is 10.5MPa. The operating valves on the driller's console are turned in turn. The lag time of the remote console's four-way hydraulic rotary valve to complete the action shall not be greater than 3%. : 5.2.9 Sealing performance of hydraulic system
The accumulator pressure is 21MPa, the outlet pressure of the annular blowout preventer pressure regulating valve is 10.5MPa, the manifold pressure is 21MPa, the plug is tightly sealed at the end of the inlet and outlet oil pipes, and after 5 minutes, observe the pressure drop of each three-position four-way hydraulic rotary valve in the opening, closing and middle positions within 3 minutes. The middle position shall not be greater than 0.25MPa, and the opening and closing positions shall not be greater than 0.6MPa. 5.2.10 Operating torque of three-position four-way hydraulic rotary valve When the inlet pressure of the three-position four-way hydraulic rotary valve is 10.5MPa, the operating torque of the handle shall not be greater than 40N?m. 5.2.11 Pressure resistance requirements
With the three-position four-way rotary valve in the middle position, the system pressure is raised to 1.5 times the nominal pressure. After maintaining the pressure for 10 minutes, check that there is no leakage at each seal, and that each component shall not have obvious deformation, cracks and other defects. The internal repulsion drop within 3 minutes shall not be greater than 0.35MPa. The pipe rack and high-pressure hose can be tested separately at 1.5 times the nominal pressure. After maintaining the pressure for 10 minutes, there shall be no leakage, and there shall be no obvious deformation, cracks and other defects at each location.
5.2.12 Sealing performance of air circuit system
The air source pressure is 0.80MPa. After cutting off the air source, observe the pressure drop of each operating valve on the driller's console in the "neutral position", "open position" and "closed position" within 3 minutes. The neutral position shall not be greater than 0.05MPa, and the open and closed positions shall not be greater than 0.20MPa. 5.2.13 Air supply pressure and maximum pressure of pneumatic pump operation. The pneumatic pump operates at a supply pressure of 0.53MPa, and its maximum output pressure shall not be lower than 21MPa. 6 Test method
6.1 Test preparation
Install the driller's console, remote console, blowout preventer (for closing time test)15
and its pipelines according to the instructions for use of the ground blowout preventer control device.
6.2 Test conditions
SY/T5053.2—2001
6.2.1 The accumulator charging pressure is 7MPa±0.7MPa, the gas source pressure is 0.65~0.80MPa, and the power supply voltage is 380V±19V. 6.2.2 Other test conditions shall comply with the provisions of GB/T3766. 6.3 Test items and methods
6.3.1 Closing time test
When the outlet pressure of the pressure regulating valve is 10.5MIPa, operate the operating valves on the driller's console and record the time to close the gate blowout preventer, annular blowout preventer and hydraulic valve.
6.3.2 Accumulator group charging time test
When the remote control console releases the pressure to 7MPa and each three-position four-way hydraulic rotary valve is in the "neutral position", start the pump group to charge the accumulator group and record the time from the start of charging to the pressure rising to 21MPa. 6.3.3 Pump group automatic start and stop test
Test the electric pump and air pump separately. When the accumulator group pressure is slowly reduced from 21-0.7MPa to 18.9MPa, observe whether the pump can start automatically; after the pump is started, when the pressure rises to 2100.7MPa, observe whether the pump can stop automatically. 6.3.4 Shark flow valve overpressure protection test
When the main switch is in the manual position and the liquid and gas switch is cut off, start the pump group to gradually increase the pressure, observe the pressure at which the overflow valve begins to overflow, and observe the pressure that causes the overflow valve to close as the system pressure decreases. 6.3.5 Annular BOP pressure regulating valve outlet pressure stability test Set the pressure regulating valve inlet pressure to 21MPa, and the outlet pressure to the manufacturer's recommended value. By changing the external conditions, the pressure regulating valve outlet pressure is caused to rise and fall slowly, and the range of its outlet pressure fluctuation is observed (this item can be tested separately on the component test bench). 6.3.6 Action consistency test
Operate each operating valve on the driller's console and observe whether the switching action of the corresponding three-position four-way rotary valve on the remote console is consistent. 6.3.7 Air-controlled liquid-operated liquid rotary valve control lag time test When the pressure regulating valve outlet pressure is 10.5MPa, record the lag time from the operation of each operating valve on the driller's console to the completion of the three-position four-way liquid rotary action on the remote console. 6.3.8 Oil sealing test
When the accumulator pressure is 21MPa, the outlet pressure of the annular blowout preventer pressure regulating valve is 10.5MPa and the manifold pressure is 21MPa, seal the end of the oil pipe with a plug, and make each three-position four-way rotary valve switch between "neutral position", "open position" and "closed position" for 5 minutes, and observe the pressure drop of the rotary valve in the neutral position, open position or closed position for 3 minutes. 6.3.9 Three-position four-way hydraulic rotary valve operating torque test When the inlet pressure of the rotary valve is 10.5MPa, turn its handle from "open" to "close" or from "close" to "open", and calculate the operating torque of the handle according to the tensile gauge reading and the handle length. 6.3.10 Pressure resistance test
Seal the end of the oil pipe with a plug, close the accumulator stop valve, and open the service valve. The high-pressure relief valve is set at 34.5MPa, and the pneumatic pump is started to raise the pressure to 1.5 times the nominal pressure of the surface blowout preventer control device. Each three-position four-way hydraulic rotary valve is placed in the "neutral position". After stopping the pump and maintaining the pressure for 10 minutes, check whether each component has obvious leakage, obvious deformation, cracks and other defects, and check the pressure drop within 3 minutes. The pipe rack and high-pressure hose are subjected to a pressure resistance test of 1.5 times the nominal pressure separately, and the pressure is maintained for 10 minutes. Check whether each part has leakage, obvious deformation, cracks and other defects.
6.3.11 Air sealing test
Remote control console pressure relief, the air source pressure is 0.8MPa, and the operating valves of the driller's console are respectively in the "neutral position", "open position" and "closed position". After cutting off the air source, observe the pressure drop within 3 minutes. 6.3.12 Output pressure test of pneumatic pump at the lowest air supply pressure Make the pneumatic pump operate at a supply pressure of 0.53MPa and check the maximum output pressure of the pneumatic pump. 6
7 Inspection rules
7.1 Inspection classification
7.1.1 Factory inspection
SY/T5053.2—2001
7.1.1.1 Each surface blowout preventer control device shall be inspected and qualified by the quality inspection department of the manufacturer, and a certificate of product quality shall be issued before it can be shipped out of the factory. 7.1.1.2 The following items shall be inspected one by one before the whole machine leaves the factory: a) automatic start and stop test of pump group; b) air seal test; c) oil seal test; d) accumulator group charging time test; e) overflow valve overpressure protection test; f) pressure regulating valve outlet pressure stability test (testing is allowed on component test bench); g) action consistency test; h) control lag time test; i) pressure resistance test.
7.1.2 Type inspection
7.1.2.1 Type inspection shall be conducted in any of the following cases: a) When a new type of surface blowout preventer control device is trial-produced; b) When major changes are made to the structure, process and materials of the finalized product; c) Under normal production conditions, a finalized product shall be inspected every 23 years from one of the qualified batches of factory inspections; d) When production is resumed after being suspended for more than two years for some reason; e) When the quality supervision agency of the state or department proposes a type inspection requirement. 7.1.2.2 In addition to all the items of factory inspection, the following items shall be added to the product type inspection items: a) Operating torque inspection of three-position four-way hydraulic rotary valve; b) BOP closing time inspection;
c) Maximum flow inspection of overflow valve;
d) Maximum output pressure inspection under the minimum air supply pressure of pneumatic pump. 7.2 Judgment rules
If one of the factory inspection items fails, the product is judged to be unqualified for factory inspection. If one of the type inspection items fails, the product is judged to be unqualified for type inspection. 8 Marking and instruction manual
8.1 Product marking
8.1.1 Product marking method
The product shall be marked with a nameplate or other appropriate method. 8.1.2 Contents of product marking
a) Product name and model;
b) Manufacturer's name;
c) Main technical parameters of the product;
d) Manufacturer's product number;
e) Product manufacturing date;
f) Product weight:
g) Implementation product standard number;
h) Trademark mark.
8.2 Packaging mark
8.2.1 The content of the packaging mark includes:
a) product name and model;
b) product quantity;
c) gross weight and net weight;
l) package dimensions (length × width × height);
e) lifting position;
f) shipping date;
SY/T 5053.2—2001
g) destination (port) and consignee (consignee);
8.2.2 The packaging mark should be displayed accurately, clearly and firmly on the package. 8.3 Instructions for use
The product instructions for use should comply with the provisions of GB 9969.1. 9 Packaging, transportation and storage
9.1 Products that have passed the inspection can be packaged only after they have been properly protected and necessary inner packaging has been provided. 9.2 Before packaging, the pressure liquid in the tank and the nitrogen in the accumulator should be released (nitrogen should retain a residual pressure of 0.10.15MPa), and each oil port should be sealed with a screw plug. Anti-rust measures should be taken for moving parts such as cylinders and oil pumps and exposed metal surfaces. 9.3 The packaging method should be selected according to the characteristics of the product and transportation conditions. Under normal storage and transportation conditions, within six months from the month of shipment, the product should not be damaged or parts should not be lost due to packaging reasons. 9.4 The packaging of rubber sealing products should comply with the provisions of GR/T5721. The packaging of accumulator capsules should comply with the provisions of HG/T2331.
9.5 When the product is shipped, the following documents should be accompanied: a) Instruction manual;
b) Product certificate;
c) Packing list;
d) Random spare parts and accessories list.
Factory documents should be placed in a moisture-proof bag. 9.6 It should be hoisted at the position specified by the packaging mark, and laid flat and firmly fixed during transportation. 97 Unopened ground blowout preventer control devices should be stored by inventory method, or canopy method can be used for short-term storage of less than two months. 9.8 The storage of rubber sealing products shall comply with the provisions of GH/T5721: the storage of accumulator capsules shall comply with the provisions of HG/T2331.
9.9 When the ground blowout preventer control device is stored, it should be placed separately and not stacked. A1 Manufacturing materials
SY/T 5053.2-2001
Appendix A
(Appendix to the standard)
Material requirements
A1.1 Structural steel shall comply with the relevant national standards, and steel without clear markings shall not be used. A1.2 Steel can be grouped according to its strength and welding performance. a) Group I specifies low-carbon steel with a minimum yield strength of less than or equal to 280MPa, which can be welded by any welding process. b) Group II specifies medium-strength steel with a yield strength of 280 to 360MPa. These materials require welding with low-hydrogen electrodes. c) Group III is high-strength steel with a minimum yield strength exceeding 360MPa. The following factors should be considered when using these steels: 1) Weldability and special welding processes that may be required. 2) Fatigue problems that may arise due to the use of higher working stresses. 3) Impact toughness related to other crack control factors, such as processing, inspection processes, operating stresses and temperature environments. A2 Purchasing Materials
A2.1 Pressure-bearing Parts
A2.1.1 Accumulator
The accumulator shell shall be subjected to a pressure test with a test pressure of 1.5 times the rated pressure. The accumulator shell shall have a permanent serial number to ensure traceability to the manufacturer. The control system manufacturer shall keep quality files including pressure tests. A2.1.2 Pipes and Joints
A2.1.2.1 The bursting pressure of pipelines and joints shall be greater than 3 times the working pressure. A2.1.2.2 Hoses and joints shall be subjected to pressure resistance test, and the test pressure shall be 1.5 times of their rated pressure. A2.1.2.3 Pipelines of surface blowout preventer control devices in Class I Zone 1 as defined by SY0025 shall be subjected to flame test. Under the condition of flame temperature of 1093℃±38℃, they shall be able to withstand normal working pressure and last for 3 minutes without leakage. A2.1.2.4 All pipelines shall be subjected to pressure resistance test by the control system manufacturer, and the test pressure shall be 1.5 times of the nominal pressure. A2.1.3 Hydraulic system components
Components include reversing valves, check valves, pressure relief valves, relief valves, pump liquid ends, solenoid valves, pressure controllers, pressure transmitters, pressure gauges, liquid-gas switches, etc. The manufacturer shall calibrate them to reach or exceed the nominal pressure required by the system, and their bursting pressure shall be at least 3 times of the nominal pressure.
All hydraulic components used in the control system shall be new and comply with the provisions of SY/T5443. Components used for life tests cannot be installed on factory equipment.
A2.2 Electrical equipment
A2.2.1 All electrical components should be able to work continuously around the clock in the environment. A2.2.2 All electrical devices used in hazardous environments (as defined in SY0025) should be tested and certified by a third-party inspection agency [such as the China Electrical Product Certification Committee (CCEE) "Great Wall Certification"]. A2.2.3 All electrical components should work normally within the range of (nominal voltage ± 10%). A2.2.4 The insulation value of all electrical appliances should be 1.5 times the maximum operating voltage or 50V higher, whichever is higher. A2.2.5 The diameter of all copper wires leading from the outside to the electrical box should be at least 1mm; single-strand wires should not be used in high-frequency vibration areas. A2.2.6 The minimum bending radius of the cable should not be less than the radius value recommended by the cable manufacturer based on the ambient temperature range. A2.2.7 For all electrical devices exposed to uncontrolled environments (such as on drilling platforms, etc.), the protection level of the casing shall not be lower than IP44 (see GB4942.2).7 For all electrical devices exposed to uncontrolled environments (such as on drilling platforms, etc.), the protection level of the casing shall not be lower than IP44 (see GB4942.2).7 For all electrical devices exposed to uncontrolled environments (such as on drilling platforms, etc.), the protection level of the casing shall not be lower than IP44 (see GB4942.2).
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