Drilling fluid injection system

Abstract

The utility model discloses a drilling fluid injection system, which relates to the field of drilling fluid injection systems, and comprises a first table board vertical pipe, a second table board vertical pipe, an emptying manifold and at least two slurry pumps, and the plurality of slurry pumps are connected with the first table board vertical pipe, the second table board vertical pipe and the emptying manifold through a plurality of electric valves. All the slurry pumps and the electric valves are connected with the console. According to the utility model, the problems of slow control, insufficient accuracy and potential safety hazards possibly caused by manual operation of a drilling fluid injection system can be effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of drilling fluid injection systems, and in particular to a drilling fluid injection system. Background Technology

[0002] The drilling fluid injection system is an indispensable part of the entire drilling process. Drilling fluid acts as the lubricant for the entire drilling system and plays a crucial role. During the drilling process, it is often necessary to control the valve opening degree of the drilling fluid injection system to achieve various functions or operating conditions of the system.

[0003] Currently, the opening degree of valves at the well site is controlled manually. Manual operation presents the following technical problems:

[0004] 1. Manual operation is required. It takes about 21 turns of the handwheel to fully open or close the valve, which takes about 50 to 70 seconds. Each time the drilling fluid process is changed or the function is changed, multiple valves are opened or closed, which makes the control process relatively slow and cannot respond quickly to drilling process requirements.

[0005] 2. When operators manually turn the valve handwheel, the accuracy of the opening and closing depends on the operator's skill or experience. This can result in the valve not being fully closed or fully opened, causing the valve plate to wear out too quickly.

[0006] Third, if manual operation is used, and the operator is not familiar with the process or the instructions received are unclear, the valve may be misoperated, causing safety hazards.

[0007] Therefore, a new solution is needed in this field to address the above problems. Utility Model Content

[0008] The purpose of this utility model is to provide a drilling fluid injection system that addresses the aforementioned problems, effectively solving the issues of slow control, insufficient precision, and potential safety hazards associated with manual operation in drilling fluid injection systems.

[0009] The technical solution adopted by this utility model is as follows: a drilling fluid injection system, including a first platform riser, a second platform riser, a drain manifold and at least two mud pumps. Multiple mud pumps are connected to the first platform riser, the second platform riser and the drain manifold through multiple electric valves. All mud pumps and electric valves are connected to the control console.

[0010] Furthermore, the console has a controller and an operation screen, with the operation screen connected to the input terminal of the controller, and the electric valve and mud pump connected to the output terminal of the controller.

[0011] Furthermore, the console also has a cabinet, the controller is installed in the cabinet, and the operation screen is embedded in the cabinet; a protective cover is rotatably connected to the position on the cabinet where the operation screen is mounted, and the area of ​​the protective cover is larger than the area of ​​the operation screen to cover the operation screen.

[0012] Furthermore, a damping telescopic rod is hinged between the protective cover and the cabinet, and the damping telescopic rod, the protective cover, and the cabinet form a triangular structure.

[0013] Furthermore, the drilling fluid injection system includes a first mud pump and a third mud pump. The outlet of the first mud pump has a first electric valve and a tenth electric valve connected together, and the outlet of the third mud pump has a third electric valve and a twelfth electric valve connected together. Both the tenth and twelfth electric valves are connected to the inlet of the drain manifold. The first electric valve is connected to the sixth electric valve at the inlet of the first platform riser. The third electric valve is connected to the seventh electric valve at the inlet of the second platform riser.

[0014] Furthermore, the outlet of the first electric valve and the outlet of the third electric valve are connected through a thirteenth electric valve.

[0015] Furthermore, the drilling fluid injection system also has a kill manifold, and the outlet of the first electric valve is connected to an eighth electric valve, which is connected to the kill manifold.

[0016] Furthermore, the drilling fluid injection system also has a medium-pressure mud gun, and the outlet of the third electric valve is connected to a ninth electric valve, which is connected to the medium-pressure mud gun.

[0017] Furthermore, the drilling fluid injection system also has at least one second mud pump, the outlet of which has a second electric valve and an eleventh electric valve connected in parallel, the eleventh electric valve being connected to the inlet of the drain manifold; the second electric valve is connected to the second platform riser and / or the first platform riser.

[0018] Furthermore, the outlet of the second electric valve is connected to the fourth and fifth electric valves, the outlet of the fourth electric valve is connected to the sixth and eighth electric valves, and the outlet of the fifth electric valve is connected to the seventh and ninth electric valves; the fourth and fifth electric valves are both electric valves in an intelligent drilling fluid injection control system.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0020] This invention replaces manual valves with electric valves and uses a control console to control each electric valve, enabling the simultaneous opening / closing of multiple electric valves, greatly saving the total time for switching functions or processes; it also allows for precise control of the valve stem stroke, ensuring that the electric valve is fully opened or closed, reducing valve plate wear; and by adopting integrated control on the control console, all necessary functions and processes are solidified, eliminating safety hazards caused by misoperation. Attached Figure Description

[0021] This utility model will be described by way of example and with reference to the accompanying drawings, wherein:

[0022] Figure 1 This is a top view schematic diagram of the three mud pumps disclosed in this utility model;

[0023] Figure 2 This is a top view schematic diagram of the two mud pumps disclosed in this utility model;

[0024] Figure 3 This is a side structural diagram of the present utility model;

[0025] Figure 4 This is a schematic diagram of the console structure of this utility model;

[0026] The diagram shows the following markings: 1-First mud pump; 2-Second mud pump; 3-Third mud pump; 4-Kill manifold; 5-First platform riser; 6-Second platform riser; 7-Medium-pressure mud gun; 8-Drain manifold; 9-First electric valve; 10-Second electric valve; 11-Third electric valve; 12-Fourth electric valve; 13-Fifth electric valve; 14-Sixth electric valve; 15-Seventh electric valve; 16-Eighth electric valve; 17-Ninth electric valve; 18-Tenth electric valve; 19-Eleventh electric valve; 20-Twelfth electric valve; 21-Control console; 211-Cabinet; 212-Operating panel; 213-Protective cover; 214-Damping telescopic rod; 22-Thirteenth electric valve. Detailed Implementation

[0027] In the description of this specification, it should be noted that if terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," or "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this specification and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this specification.

[0028] Furthermore, the use of terms such as "horizontal" or "vertical" in this specification does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0029] In the description of this specification, it should also be noted that, unless otherwise expressly specified and limited, the terms “set up,” “install,” “connect,” and “link” should be interpreted broadly. For example, a link can be a fixed link, a detachable link, or an integral link; it can be a mechanical link or an electrical link; it can be a direct link or an indirect link through an intermediate medium; it can be a connection within two components.

[0030] Example 1

[0031] like Figures 1-4 As shown, a drilling fluid injection system further includes a first platform riser 5, a second platform riser 6, a drain manifold 8, and at least two mud pumps. Multiple mud pumps are connected to the first platform riser 5, the second platform riser 6, and the drain manifold 8 via multiple electric valves. All mud pumps and electric valves are connected to a control console 21. By replacing manual valves with electric valves, the control console 21 controls each electric valve, enabling the simultaneous opening / closing of multiple electric valves, significantly reducing the total time spent switching functions or processes. Furthermore, it allows for precise control of the valve stem stroke, ensuring the electric valves are fully open or closed, reducing valve plate wear. The integrated control console 21 solidifies all necessary functions and processes, eliminating safety hazards caused by misoperation.

[0032] Example 2

[0033] Based on Example 1, further feasible specific implementation methods are proposed.

[0034] In one feasible implementation, the control console 21 has a controller and an operation screen 212. The operation screen 212 is connected to the input terminal of the controller, and the electric valve is connected to the output terminal of the controller. Human-machine interaction is realized through the operation screen 212, and the controller is preferably a PLC. That is, the operator can switch functions and operate the buttons on the operation screen 212 according to the actual process to realize the control of the drilling fluid injection system.

[0035] In one feasible implementation, the console 21 further includes a cabinet 211, with the controller installed inside the cabinet 211 and the operation screen 212 embedded in the cabinet 211. A protective cover 213 is rotatably connected to the position on the cabinet 211 where the operation screen 212 is mounted. The area of ​​the protective cover 213 is larger than the area of ​​the operation screen 212 to cover it. The protective cover 213 can rotate to open and close. When the protective cover 213 is open, the operator can operate the operation screen 212. When the protective cover 213 is closed, it can protect the operation screen 212 and prevent accidental touch.

[0036] In one feasible implementation, a damping telescopic rod 214 is hinged between the protective cover 213 and the cabinet 211. The damping telescopic rod 214, the protective cover 213, and the cabinet 211 form a triangular structure. The damping telescopic rod 214 can be a pneumatic telescopic rod or a hydraulic telescopic rod. By forming a triangular structure, the protective cover 213 can be stably supported to keep it in the open state. As the protective cover 213 rotates, the triangular structure can be transformed into a line segment structure (or a close-line segment structure), so as not to affect the protective cover 213 from remaining in the closed state.

[0037] Example 3

[0038] Based on any one of the implementation methods in Examples 1-2, further feasible specific implementation methods are proposed.

[0039] like Figure 2 As shown, the drilling fluid injection system includes a first mud pump 1 and a third mud pump 3. The outlet of the first mud pump 1 has a first electric valve 9 and a tenth electric valve 18 connected together, and the outlet of the third mud pump 3 has a third electric valve 11 and a twelfth electric valve 20 connected together. Both the tenth electric valve 18 and the twelfth electric valve 20 are connected to the inlet of the drain manifold 8. The first electric valve 9 is connected to the sixth electric valve 14 at the inlet of the first platform riser 5, and the third electric valve 11 is connected to the seventh electric valve 15 at the inlet of the second platform riser 6. Specifically, the first mud pump 1 can supply drilling fluid to the first platform riser 5 through the first electric valve 9; it can also output drilling fluid to the drain manifold 8 through the tenth electric valve 18 to achieve a drain operation. The third mud pump 3 can supply drilling fluid to the second platform riser 5 through the seventh electric valve 15; it can also output drilling fluid to the drain manifold 8 through the twelfth electric valve 20 to achieve a drain operation.

[0040] Furthermore, the outlet of the first electric valve 9 and the outlet of the third electric valve 11 are connected through the thirteenth electric valve 22; specifically, the first mud pump 1 can supply drilling fluid to the second platform riser 5 through the first electric valve 9 and the thirteenth electric valve 22; the third mud pump 3 can supply drilling fluid to the first platform riser 5 through the seventh electric valve 15 and the thirteenth electric valve 22.

[0041] like Figures 1-4 As shown, including any one of the embodiments 1-2, it also includes a medium-pressure mud gun 7, a kill manifold 4, and multiple mud pumps. The multiple mud pumps are connected to the first platform riser 5, the second platform riser 6, the medium-pressure mud gun 7, the kill manifold 4, and the vent manifold 8 through multiple electric valves. All mud pumps are connected to the control console 21. The control console 21 controls the opening and closing of the electric valves to enable the mud pumps to deliver mud to the required location, as detailed below.

[0042] One of its main functions is to supply drilling fluid to the first riser 5 and / or the second riser 6 via one or more mud pumps;

[0043] The second function is well control. When slight or minor overpressure occurs at the bottom of the well during drilling, the main function of the first function is turned off, and the drilling fluid in the mud pump is transported to the well control manifold 4 for well control operation.

[0044] Thirdly, it functions as a mud gun, providing power to the medium-pressure mud gun 7 via a mud pump;

[0045] Fourthly, there is the pump venting function. When the mud pump is initially started and there is air in the pipeline system that needs to be vented, the venting manifold 8 can be connected to achieve air discharge.

[0046] Example 4

[0047] Based on Example 3, further feasible implementation methods are disclosed.

[0048] like Figure 1 As shown, there are three mud pumps: mud pump 1, mud pump 2, and mud pump 3. Mud pump 1 has a first electric valve 9 and a tenth electric valve 18 connected at its outlet. Mud pump 2 has a second electric valve 10 and an eleventh electric valve 19 connected at its outlet. Mud pump 3 has a third electric valve 11 and a twelfth electric valve 20 connected at its outlet. All three electric valves (18, 19, and 20) are connected to the inlet of the drain manifold 8. The outlet of the first electric valve 9 is connected to a sixth electric valve 14 and an eighth electric valve 16. The sixth electric valve 14 is connected to the first platform riser 5, and the eighth electric valve 16 is connected to the kill manifold 4. The outlet of the third electric valve 11 is connected to a seventh electric valve 15 and a ninth electric valve 17. The seventh electric valve 15 is connected to the second platform riser 6, and the ninth electric valve 17 is connected to the medium-pressure mud gun 7. The outlet of the second electric valve 10 is connected to the fourth electric valve 12 and the fifth electric valve 13. The outlet of the fourth electric valve 12 is connected to the sixth electric valve 14 and the eighth electric valve 16. The outlet of the fifth electric valve 13 is connected to the seventh electric valve 15 and the ninth electric valve 17.

[0049] Specifically, the four sub-functions described in Example 3 are implemented as follows.

[0050] The main function can be divided into the following sub-functions:

[0051] 1. The first mud pump 1 supplies drilling fluid to the first riser 5 on the first face. The control console 21 can open the first electric valve 9 and the sixth electric valve 14, while all other electric valves are closed. At the same time, the control console 21 controls the first mud pump 1 to turn on, while the other mud pumps are turned off. Alternatively, the first mud pump 1 supplies drilling fluid to the second riser 6 on the second face. The control console 21 can open the first electric valve 9, the fourth electric valve 12, the fifth electric valve 13, and the seventh electric valve 15, while all other electric valves are closed. At the same time, the control console 21 controls the first mud pump 1 to turn on, while the other mud pumps are turned off.

[0052] 2. The second mud pump 2 supplies drilling fluid to the first riser 5. Control console 21 can open the second electric valve 10, the fourth electric valve 12, and the sixth electric valve 14, while all other electric valves are closed. Simultaneously, control console 21 controls the second mud pump 2 to start, and the other mud pumps to stop. The second mud pump 2 also supplies drilling fluid to the second riser 6. Control console 21 can open the second electric valve 10, the fifth electric valve 13, and the seventh electric valve 15, while all other electric valves are closed. Simultaneously, control console 21 controls the second mud pump 2 to start, and the other mud pumps to stop.

[0053] 3. The third mud pump 3 supplies drilling fluid to the first face riser 5. Control console 21 can open the third electric valve 11, the fourth electric valve 12, the fifth electric valve 13, and the sixth electric valve 14, while all other electric valves are closed. Simultaneously, control console 21 controls the third mud pump 3 to start, and the other mud pumps to stop. The third mud pump 3 supplies drilling fluid to the second face riser 6. Control console 21 can open the third electric valve 11 and the seventh electric valve 15, while all other electric valves are closed. Simultaneously, control console 21 controls the first mud pump 1 to start, and the other mud pumps to stop.

[0054] Of course, when providing drilling fluid to the same platform riser (first platform riser 5 or second platform riser 6), at least two of the above sub-functions 1-3 can exist simultaneously.

[0055] For the well control function, based on any of the sub-functions 1-3 above, the sixth electric valve 14 and the seventh electric valve 15 can be closed, the eighth electric valve 16 can be opened, and the rest can remain unchanged, thus enabling well control operations.

[0056] For the mud gun function, based on any of the sub-functions 1-3 above, the sixth electric valve 14 and the seventh electric valve 15 can be closed, the ninth electric valve 17 can be opened, and the rest can remain unchanged, thus providing power to the medium-pressure mud gun 7.

[0057] For the pump set venting function, the tenth electric valve 18, the eleventh electric valve 19 and the twelfth electric valve 20 can be opened, while the remaining electric valves are closed; at the same time, the first mud pump 1, the second mud pump 2 and the third mud pump 3 are turned on, which can realize the venting of the pump set.

[0058] It should be noted that a separate button can be created on the operation screen 212 for the above functions, enabling one-click start and function switching.

[0059] This invention is not limited to the specific embodiments described above. This invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.

Claims

1. A drilling fluid injection system, characterized in that: It includes a first platform riser (5), a second platform riser (6), a drain manifold (8), and at least two mud pumps. Multiple mud pumps are connected to the first platform riser (5), the second platform riser (6), and the drain manifold (8) through multiple electric valves. All mud pumps and electric valves are connected to a control console (21), which controls the mud pumps and electric valves according to their operating modes.

2. The drilling fluid injection system according to claim 1, characterized in that: The control console (21) has a controller and an operation screen (212). The operation screen (212) is connected to the input end of the controller, and the electric valve and mud pump are connected to the output end of the controller.

3. The drilling fluid injection system according to claim 2, characterized in that: The console (21) also has a cabinet (211), the controller is installed in the cabinet (211), and the operation screen (212) is embedded in the cabinet (211); a protective cover (213) is rotatably connected at the position where the operation screen (212) is mounted on the cabinet (211), and the area of ​​the protective cover (213) is larger than the area of ​​the operation screen (212) to cover the operation screen (212).

4. The drilling fluid injection system according to claim 3, characterized in that: A damping telescopic rod (214) is hinged between the protective cover (213) and the cabinet (211), and the damping telescopic rod (214), the protective cover (213) and the cabinet (211) form a triangular structure.

5. The drilling fluid injection system according to claim 1, characterized in that: The drilling fluid injection system has a first mud pump (1) and a third mud pump (3). The outlet of the first mud pump (1) has a first electric valve (9) and a tenth electric valve (18) connected together. The outlet of the third mud pump (3) has a third electric valve (11) and a twelfth electric valve (20) connected together. The tenth electric valve (18) and the twelfth electric valve (20) are both connected to the inlet of the drain manifold (8). The first electric valve (9) is connected to the sixth electric valve (14) at the inlet of the first platform riser (5). The third electric valve (11) is connected to the seventh electric valve (15) at the inlet of the second platform riser (6).

6. The drilling fluid injection system according to claim 5, characterized in that: The outlet of the first electric valve (9) is connected to the outlet of the third electric valve (11) via the thirteenth electric valve (22).

7. The drilling fluid injection system according to claim 5, characterized in that: The drilling fluid injection system also has a kill manifold (4), and the outlet of the first electric valve (9) is connected to an eighth electric valve (16), which is connected to the kill manifold (4).

8. The drilling fluid injection system according to claim 5, characterized in that: The drilling fluid injection system also has a medium-pressure mud gun (7), and the outlet of the third electric valve (11) is connected to the ninth electric valve (17), which is connected to the medium-pressure mud gun (7).

9. The drilling fluid injection system according to claim 5, characterized in that: The drilling fluid injection system also has at least one second mud pump (2), the outlet of which has a second electric valve (10) and an eleventh electric valve (19) connected in parallel, the eleventh electric valve (19) being connected to the inlet of the drain manifold (8); the second electric valve (10) being connected to the second platform riser (6) and / or the first platform riser (5).

10. The drilling fluid injection system according to claim 9, characterized in that: The outlet of the second electric valve (10) is connected to the fourth electric valve (12) and the fifth electric valve (13). The outlet of the fourth electric valve (12) is connected to the sixth electric valve (14) and the eighth electric valve (16). The outlet of the fifth electric valve (13) is connected to the seventh electric valve (15) and the ninth electric valve (17). The fourth electric valve (12) and the fifth electric valve (13) are both electric valves in the intelligent drilling fluid injection control system.

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