Box body structure for wellhead control panel

Abstract

The utility model discloses a box body structure for a wellhead control panel, which comprises a control box erected on the ground, a single well mechanism used for controlling a corresponding single well, a cable arrangement mechanism used for arranging cables and a protection mechanism used for an emergency turn-off system, the single well mechanism is arranged at the upper part of the control box, and the single well mechanism is arranged at the lower part of the control box. The single-well mechanism is assembled at one end of the control box, the wire arranging mechanism is assembled at one side part of one end of the control box, and the protection mechanism is arranged at one side of the interior of the control box. A cable of the wellhead control panel can be arranged to avoid winding and knotting of connecting wires of all parts and instruments, a protection mechanism is arranged, a gas source needed by an emergency shutoff system can be provided through a nitrogen cylinder, safety of the wellhead control panel is guaranteed, an oil well is shut down emergently, and accidents are prevented from occurring or expanding. The whole box body is arranged in a modular mode, and the layout is reasonable.

Description

Technical Field

[0001] The utility model relates to the technical field of wellhead control panels, in particular to a box structure for a wellhead control panel. Background Art

[0002] In the existing technology, the wellhead control panel is an important safety control device in the oil field to ensure the opening and closing of the Christmas tree safety valve. When an oil and gas well fails, it can quickly shut down the well, fully protecting the safety of personnel and property in the oil and gas field. The wellhead control panel commonly seen in existing oil and gas fields is an integral structure. The internal pipelines and accessories of the wellhead control panel are installed tightly and the space is small. The equipment is under long-term high-pressure conditions and expands and contracts for a long time. The joints and valves will be affected to a certain extent, resulting in slight leakage of some joints and accessories. The joints and accessories may even leak due to vibration of the oil and gas field. Many inconveniences will occur when repairing and replacing joints and accessories. It may even be necessary to remove many joints, pipelines and accessories that have not caused problems to repair and replace failed accessories, thereby reducing work efficiency. In addition, the shell structure of the existing wellhead control panel is too simple and the distribution is unreasonable. The junction box is mostly designed at the top of the shell or at the bottom of the wellhead control panel. The design of the top junction box will cause rainwater to penetrate into the interior under long-term seawater corrosion, causing electrical equipment failure. The design of the internal junction box will soak the internal accessories in the event of oil leakage. Long-term immersion will cause hydraulic oil to penetrate into the junction box, which will also cause electrical equipment failure.

[0003] Chinese utility model patent application number 201820643562.1 discloses a novel modular multi-well wellhead control panel, comprising a control panel housing housing a main controller, several single-well modules, a fuel tank, a booster pump, and an accumulator. An accumulator buffer seat is located below the accumulator, with an elastic rubber pad positioned between the buffer seat and the bottom of the accumulator. A clamp is positioned on the outer surface of the accumulator, with a vertical fixing plate positioned on one side of the clamp and secured to the inner wall of the control panel housing via the fixing plate. Several buffer springs are positioned between the fixing plate, the control panel housing, and the accumulator. A heat sink is positioned on one side of the fuel tank, with a thermoelectric generator connected to a battery. However, while this novel modular multi-well wellhead control panel modularizes the various instruments and electrical components, it lacks a wiring management structure, which makes it easy for the wiring of the various components and instruments to become tangled. Furthermore, it lacks emergency shutdown protection equipment, making it impossible to ensure the safety of the wellhead control panel. Utility Model Content

[0004] The purpose of the utility model is to provide a box structure for a wellhead control panel.

[0005] In order to achieve the above purpose, the technical solution proposed by the utility model is:

[0006] A box structure for a wellhead control panel includes a control box, which is mounted on the ground and also includes a single-well mechanism for controlling the corresponding single well, a wire management mechanism for arranging cables, and a protection mechanism for an emergency shutdown system. The single-well mechanism is arranged on the upper part of the control box, the wire management mechanism is assembled on one end side of the control box, and the protection mechanism is configured on one side inside the control box.

[0007] The single-well mechanism includes a mounting blind plate and a single-well module. The mounting blind plates are provided in several groups, and the several groups of the mounting blind plate arrays are arranged on the upper side of the control box. The single-well module is provided in several groups, and the several groups of the single-well module arrays are arranged on the upper side of the control box and are plugged into the control box through the mounting blind plates.

[0008] It also includes pressure gauges and push-pull valves. The pressure gauges are provided in several groups, and the pressure gauges in several groups are respectively arranged on the upper part of several groups of single-well modules and fixedly connected to the corresponding single-well modules. The push-pull valves are provided in several groups, and the push-pull valves in several groups are respectively arranged on the lower part of several groups of single-well modules and fixedly connected to the corresponding single-well modules.

[0009] The wire management mechanism includes an explosion-proof junction box and a cable management rack. The explosion-proof junction box is arranged at the upper part of one end of the control box and is fixedly connected to the control box. The cable management rack is arranged at the lower part of one end of the control box corresponding to the explosion-proof junction box and is fixedly connected to the control box. The cable management rack is located below the explosion-proof junction box and is spaced apart from the explosion-proof junction box.

[0010] The protection mechanism includes a nitrogen cylinder, a pressure regulating valve and an accumulator. The nitrogen cylinders are provided in several groups, and the groups of nitrogen cylinders are arranged side by side on one side of the interior of the control box and fixedly connected to the control box through a bracket. The pressure regulating valves are provided in several groups, and the groups of pressure regulating valves are arranged on one side of the control box corresponding to the nitrogen cylinder array and fixedly connected to the control box. The accumulators are provided in several groups, and the groups of accumulators are arranged side by side on one side of the interior of the control box and fixedly connected to the control box through a bracket. The accumulators are arranged adjacent to the nitrogen cylinders.

[0011] It also includes a control mechanism for controlling the opening and closing of the oil well safety valve, the control mechanism includes an electric pump, a fuel tank body, a liquid level transmitter and an explosion-proof electric control box, the electric pumps are provided in several groups, and the several groups of electric pumps are arranged side by side at intervals in the lower inner part of the control box and are fixedly connected to the control box, the fuel tank body is arranged in the lower inner part of the control box corresponding to the electric pump and is fixedly connected to the control box, the electric pump is connected to the fuel tank body through a pipeline, the liquid level transmitter is arranged between the electric pump and the fuel tank body, and the explosion-proof electric control box is arranged on a side of the control box away from the explosion-proof junction box and is fixedly connected to the control box.

[0012] It also includes a tank level gauge, which is arranged at a lower part of one side of the control box corresponding to the tank body and is fixedly connected to the control box. The tank level gauge is communicated with the tank body.

[0013] It also includes a respirator, which is arranged in the middle of the upper end of the control box and fixedly connected to the control box.

[0014] It also includes an inspection opening and closing door and an inspection side door. The inspection opening and closing doors are provided in several groups. The several groups of inspection opening and closing doors are respectively arranged on both sides of the control box and hinged to the control box. The inspection side door is arranged on the side of the control box away from the explosion-proof junction box corresponding to the explosion-proof electric control box and is hinged to the control box.

[0015] It also includes a base channel steel and a lifting eye bolt. The base channel steel is arranged at the bottom of the control box and is fixedly connected to the control box. The control box is erected on the ground through the base channel steel. There are four lifting eye bolts. The four lifting eye bolts are respectively arranged at the four corners of the upper end of the control box and are fixedly connected to the control box.

[0016] The beneficial effects of the utility model are:

[0017] It is equipped with a single-well mechanism, which can realize the control of the safety valve on the well to specifically control each well. It is equipped with a wire management mechanism, which can organize the cables of the wellhead control panel to avoid entanglement and knotting of the wiring of various components and instruments. It is equipped with a protection mechanism, which can provide the gas source required for the emergency shutdown system through the nitrogen cylinder, ensure the safety of the wellhead control panel, realize the emergency closure of the oil well, and prevent the occurrence or expansion of accidents. The overall box adopts a modular layout with a reasonable layout. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a side view of the utility model;

[0020] Figure 3 This is a schematic diagram of the cooperation between the pressure gauge, push-pull valve and control box of the utility model;

[0021] Figure 4 This is a schematic diagram of the coordination between the accumulator and the control box of the utility model;

[0022] Figure 5 This is a schematic diagram of the cooperation between the explosion-proof electric control box and the control box of the utility model;

[0023] Figure 6 It is a schematic diagram of the cooperation between the respirator and the control box of the utility model.

[0024] In the figure: 1. Control box; 2. Mounting blind plate; 3. Single well module; 4. Pressure gauge; 5. Push-pull valve; 6. Explosion-proof junction box; 7. Cable management rack; 8. Nitrogen cylinder; 9. Pressure regulating valve; 10. Accumulator; 11. Electric pump; 12. Fuel tank body; 13. Liquid level transmitter; 14. Explosion-proof electric control box; 15. Fuel tank level gauge; 16. Breathing apparatus; 17. Inspection opening and closing door; 18. Inspection side door; 19. Base channel steel; 20. Eyebolt. DETAILED DESCRIPTION

[0025] The present invention is described in further detail below with reference to the accompanying drawings.

[0026] A box structure for a wellhead control panel includes a control box 1, which is mounted on the ground and also includes a single well mechanism for controlling the corresponding single well, a wire management mechanism for arranging cables, and a protection mechanism for an emergency shutdown system. The single well mechanism is arranged on the upper part of the control box 1, the wire management mechanism is assembled on one end side of the control box 1, and the protection mechanism is arranged on one side of the interior of the control box 1. The overall structure diagram of the utility model is shown as follows Figure 1 shown.

[0027] The single-well mechanism includes a mounting blind plate 2 and a single-well module 3. The mounting blind plate 2 is provided with several groups, and the several groups of mounting blind plates 2 are arranged in an array on the upper side of the control box 1. The single-well module 3 is provided with several groups, and the several groups of single-well modules 3 are arranged in an array on the upper side of the control box 1 and are plugged into the control box 1 through the mounting blind plate 2. The single-well mechanism cooperates with the mounting blind plate 2 and the single-well module 3 to constitute the single-well control part of the wellhead control panel to specifically control each oil well, wherein the mounting blind plate 2 is used as a mounting structure on the control box 1, thereby providing mounting support for the single-well module 3. The single-well module 3 is used to specifically control each oil well, which can realize the control of the on-well safety valve by starting the control circuit. The side view of the utility model is as shown in FIG. Figure 2 shown.

[0028] It also includes a pressure gauge 4 and a push-pull valve 5. The pressure gauge 4 is provided with several groups. Several groups of pressure gauges 4 are respectively arranged on the upper part of several groups of single-well modules 3 and are fixedly connected to the corresponding single-well modules 3. There are several groups of push-pull valves 5. Several groups of push-pull valves 5 are respectively arranged on the lower part of several groups of single-well modules 3 and are fixedly connected to the corresponding single-well modules 3. Among them, the pressure gauge 4 is used to monitor the pressure in the wellhead area. The push-pull valve 5 is used as a manual reset device on the control box 1 to realize the manual switch of the on-well safety valve of the corresponding single well. The schematic diagram of the cooperation between the pressure gauge 4 and the push-pull valve 5 of the utility model and the control box 1 is shown in Figure 3 shown.

[0029] The wire management mechanism includes an explosion-proof junction box 6 and a cable management rack 7. The explosion-proof junction box 6 is arranged at the upper part of one end of the control box 1 and is fixedly connected to the control box 1. The cable management rack 7 is arranged at the lower part of one end of the control box 1 corresponding to the explosion-proof junction box 6 and is fixedly connected to the control box 1. The cable management rack 7 is located below the explosion-proof junction box 6 and is arranged at intervals from the explosion-proof junction box 6. The wire management mechanism cooperates with the explosion-proof junction box 6 and the cable management rack 7 to form a wire management structure on the control box 1, wherein the explosion-proof junction box 6 is used as a wiring structure on the control box 1 to meet the wiring requirements of the control box 1, and the cable management rack 7 is used as a wiring structure on the control box 1 to meet the cable organization requirements.

[0030] The protection mechanism includes a nitrogen cylinder 8, a pressure regulating valve 9 and an accumulator 10. The nitrogen cylinder 8 is provided in several groups, and the groups of nitrogen cylinders 8 are arranged side by side on one side of the interior of the control box 1 and are fixedly connected to the control box 1 through a bracket. The pressure regulating valve 9 is provided in several groups, and the groups of pressure regulating valves 9 are arranged in an array corresponding to the nitrogen cylinder 8 on one side of the control box 1 and are fixedly connected to the control box 1 through a bracket. The accumulator 10 is provided in several groups, and the groups of accumulators 10 are arranged side by side on one side of the interior of the control box 1 and are fixedly connected to the control box 1 through a bracket. The accumulator 10 is arranged adjacent to the nitrogen cylinder 8. The protection mechanism cooperates with the nitrogen cylinder 8, the pressure regulating valve 9 and the accumulator 10 to form an emergency protection structure of the wellhead control panel to ensure safe operation and control of the oil well. Among them, the nitrogen cylinder 8 is used to provide the gas source required for the emergency shutdown system, the pressure regulating valve 9 is used to control the gas path of the nitrogen cylinder 8, and the accumulator 10 is used to supplement leakage, maintain constant pressure, and can be used as an auxiliary power supply and emergency power supply. The schematic diagram of the cooperation between the accumulator 10 and the control box 1 of the utility model is shown in Figure 4 shown.

[0031] It also includes a control mechanism for controlling the opening and closing of the oil well safety valve, the control mechanism includes an electric pump 11, a fuel tank body 12, a liquid level transmitter 13 and an explosion-proof electric control box 14, the electric pump 11 is provided with several groups, and several groups of electric pumps 11 are arranged side by side at intervals on the inner lower part of the control box 1 and are fixedly connected to the control box 1, the fuel tank body 12 corresponds to the electric pump 11 and is arranged on the inner lower part of the control box 1 and is fixedly connected to the control box 1, the electric pump 11 is communicated with the fuel tank body 12 through a pipeline, the liquid level transmitter 13 is arranged between the electric pump 11 and the fuel tank body 12, the explosion-proof electric control box 14 is arranged on the side of the control box 1 away from the explosion-proof junction box 6 and is fixedly connected to the control box 1, and the control mechanism is connected to the fuel tank body 12 through an electric pump. The pump 11, the oil tank body 12, the liquid level transmitter 13 and the explosion-proof electric control box 14 cooperate to form the control part of the wellhead control panel, wherein the electric pump 11 is used to connect the oil tank body 12 with the downhole safety valve of the oil well to realize hydraulic control, the oil tank body 12 is used to store oil, and the liquid level transmitter 13 is used to measure and monitor the height or pressure of the oil, thereby helping to monitor and control the wellhead pressure, ensuring that the wellhead pressure is within a safe range, thereby preventing damage to the wellhead equipment or the occurrence of safety accidents. The explosion-proof electric control box 14 is used as the electric control part in the wellhead control panel to control the various electrical components in the wellhead control panel. The schematic diagram of the cooperation between the explosion-proof electric control box 14 and the control box 1 of the utility model is shown as follows Figure 5 shown.

[0032] It also includes a fuel tank level gauge 15, which is arranged at the lower part of one side of the control box 1 corresponding to the fuel tank body 12 and is fixedly connected to the control box 1. The fuel tank level gauge 15 is connected to the fuel tank body 12, wherein the fuel tank level gauge 15 is used to display the remaining amount of oil in the fuel tank body 12.

[0033] It also includes a respirator 16, which is arranged in the middle of the upper end of the control box 1 and is fixedly connected to the control box 1. The respirator 16 is used to filter and dry the air entering the control cabinet. The schematic diagram of the cooperation between the respirator 16 and the control box 1 of the utility model is shown in FIG. Figure 6 shown.

[0034] It also includes an inspection opening and closing door 17 and an inspection side door 18. The inspection opening and closing doors 17 are provided in several groups. Several groups of inspection opening and closing doors 17 are respectively arranged on both sides of the control box 1 and are hinged to the control box 1. The inspection side door 18 is arranged on the side of the control box 1 away from the explosion-proof junction box 6 corresponding to the explosion-proof electric control box 14 and is hinged to the control box 1. The inspection opening and closing doors 17 are used as the opening and closing door structure on the front and back of the control box 1, and the inspection side door 18 is used as the opening and closing door structure on the side of the control box 1.

[0035] It also includes a base channel steel 19 and a lifting eye bolt 20. The base channel steel 19 is arranged at the bottom of the control box 1 and is fixedly connected to the control box 1. The control box 1 is erected on the ground through the base channel steel 19. There are four lifting eye bolts 20. The four lifting eye bolts 20 are respectively arranged at the four corners of the upper end of the control box 1 and are fixedly connected to the control box 1. Among them, the base channel steel 19 is used to provide installation support for the control box 1, and the lifting eye bolt 20 is used as a lifting structure at the upper end of the control box 1 to meet the lifting and transportation requirements of the control box 1.

[0036] Among them, the parts not described in detail in this technical solution are all commonly used technical means of wellhead control panels in the existing technology, so they are not described in detail.

[0037] Working principle:

[0038] The wellhead control panel is connected to each oil well safety valve that needs to be controlled through cables, and the cables are organized through a cable management mechanism. During operation, the nitrogen cylinder 8 provides nitrogen to the oil well emergency shutdown station circuit and the fusible plug circuit through the pressure regulating valve 9. In an emergency, such as when a leak or other fault occurs, the pilot end of the hydraulic three-way valve will lose pressure and close, thereby achieving emergency closure of the oil well through the control logic circuit to prevent the occurrence or expansion of accidents. At the same time, the accumulator 10 can absorb the pulsation of the pump to reduce the noise and vibration of the system, and the accumulator 10 can absorb the impact pressure generated by the sudden stop of the hydraulic pump to protect the system from the impact of excessive pressure. The nitrogen cylinder 8 can also be used to maintain a positive pressure state in the wellhead control panel, and keep the pressure within the set range through the pressure monitoring and control system to ensure the normal operation and safety of the equipment in the control box 1.

[0039] The beneficial effects of the utility model are that a single-well mechanism is provided, which can realize the control of the safety valve on the well to specifically control each well; a wire management mechanism is provided, which can organize the cables of the wellhead control panel to avoid entanglement and knotting of the wiring of various components and instruments; a protection mechanism is provided, which can provide the gas source required for the emergency shutdown system through the nitrogen cylinder, thereby ensuring the safety of the wellhead control panel, realizing the emergency closure of the oil well, and preventing the occurrence or expansion of accidents; the overall box body adopts a modular layout with a reasonable layout.

[0040] The above describes an embodiment of the present invention in detail. However, the content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A box structure for a wellhead control panel, comprising a control box (1), wherein the control box (1) is erected on the ground, and is characterized in that: It also includes a single well mechanism for controlling a corresponding single well, a wire management mechanism for arranging cables, and a protection mechanism for an emergency shutdown system. The single well mechanism is arranged on the upper part of the control box (1), the wire management mechanism is assembled on one end side of the control box (1), and the protection mechanism is arranged on one side inside the control box (1). The wire management mechanism comprises an explosion-proof junction box (6) and a cable management rack (7); the explosion-proof junction box (6) is arranged at an upper portion of one end of the control box (1) and is fixedly connected to the control box (1); the cable management rack (7) is arranged at a lower portion of one end of the control box (1) corresponding to the explosion-proof junction box (6) and is fixedly connected to the control box (1); the cable management rack (7) is located below the explosion-proof junction box (6) and is spaced apart from the explosion-proof junction box (6).

2. A box structure for a wellhead control panel according to claim 1, characterized in that: The single-well mechanism comprises a mounting blind plate (2) and a single-well module (3), wherein the mounting blind plate (2) is provided in a plurality of groups, and the plurality of groups of the mounting blind plates (2) are arranged in an array on an upper side of the control box (1); and the single-well module (3) is provided in a plurality of groups, and the plurality of groups of the single-well module (3) are arranged in an array on an upper side of the control box (1) and are plugged into the control box (1) through the mounting blind plate (2).

3. A box structure for a wellhead control panel according to claim 2, characterized in that: It also includes a pressure gauge (4) and a push-pull valve (5), wherein the pressure gauge (4) is provided in several groups, and the pressure gauges (4) are respectively arranged on the upper parts of the single-well modules (3) and fixedly connected to the corresponding single-well modules (3); the push-pull valve (5) is provided in several groups, and the push-pull valves (5) are respectively arranged on the lower parts of the single-well modules (3) and fixedly connected to the corresponding single-well modules (3).

4. A box structure for a wellhead control panel according to claim 3, characterized in that: The protection mechanism comprises a nitrogen cylinder (8), a pressure regulating valve (9) and an accumulator (10). The nitrogen cylinder (8) is provided in a plurality of groups, and the plurality of groups of nitrogen cylinders (8) are arranged side by side at intervals on one side of the interior of the control box (1) and are fixedly connected to the control box (1) through a bracket. The pressure regulating valve (9) is provided in a plurality of groups, and the plurality of groups of pressure regulating valves (9) are arranged in an array corresponding to the nitrogen cylinders (8) on one side of the control box (1) and are fixedly connected to the control box (1). The accumulator (10) is provided in a plurality of groups, and the plurality of groups of accumulators (10) are arranged side by side at intervals on one side of the interior of the control box (1) and are fixedly connected to the control box (1) through a bracket. The accumulator (10) is arranged adjacent to the nitrogen cylinder (8).

5. The box structure for a wellhead control panel according to claim 4, characterized in that: The invention also includes a control mechanism for controlling the opening and closing of the oil well safety valve, the control mechanism including an electric pump (11), an oil tank body (12), a liquid level transmitter (13) and an explosion-proof electric control box (14). The electric pump (11) is provided in a plurality of groups, and the plurality of groups of electric pumps (11) are arranged side by side at intervals in the lower inner part of the control box (1) and are fixedly connected to the control box (1). The oil tank body (12) is arranged in the lower inner part of the control box (1) corresponding to the electric pump (11) and is fixedly connected to the control box (1). The electric pump (11) is communicated with the oil tank body (12) through a pipeline. The liquid level transmitter (13) is arranged between the electric pump (11) and the oil tank body (12). The explosion-proof electric control box (14) is arranged in the control box (1) on a side away from the explosion-proof junction box (6) and is fixedly connected to the control box (1).

6. A box structure for a wellhead control panel according to claim 5, characterized in that: It also includes a fuel tank level gauge (15), which is arranged at a lower part of one side of the control box (1) corresponding to the fuel tank body (12) and is fixedly connected to the control box (1), and the fuel tank level gauge (15) is communicated with the fuel tank body (12).

7. A box structure for a wellhead control panel according to claim 6, characterized in that: It also includes a respirator (16), which is arranged in the middle of the upper end of the control box (1) and is fixedly connected to the control box (1).

8. The box structure for a wellhead control panel according to claim 7, characterized in that: The utility model further comprises an inspection opening and closing door (17) and an inspection side door (18), wherein the inspection opening and closing door (17) is provided in a plurality of groups, wherein the plurality of groups of the inspection opening and closing doors (17) are respectively arranged on both sides of the control box (1) and are hinged to the control box (1), and the inspection side door (18) is arranged on a side of the control box (1) away from the explosion-proof junction box (6) corresponding to the explosion-proof electric control box (14) and is hinged to the control box (1).

9. The box structure for a wellhead control panel according to claim 8, characterized in that: It also includes a base channel steel (19) and a lifting eye bolt (20), wherein the base channel steel (19) is arranged at the bottom of the control box (1) and is fixedly connected to the control box (1), and the control box (1) is erected on the ground through the base channel steel (19), and four lifting eye bolts (20) are provided, and the four lifting eye bolts (20) are respectively arranged at the four corners of the upper end of the control box (1) and are fixedly connected to the control box (1).

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