Well kick and well leakage monitoring device

Abstract

The utility model relates to the technical field of well kick and well leakage monitoring, in particular to a well kick and well leakage monitoring device which comprises a guide pipe, the guide pipe is sleeved with a casing pipe, a casing pipe head is arranged at the upper end of the casing pipe, a crossover flange is fixed at the upper end of the casing pipe head through a bolt, and the crossover flange is connected with the casing pipe. A first flange is fixed to the upper end of the crossover flange through bolts, a double-ram blowout preventer is arranged at the upper end of the first flange, an annular blowout preventer is connected to the upper end of the double-ram blowout preventer, a through pipe is arranged at the upper end of the annular blowout preventer, and a drilling fluid outlet is formed in one side of the through pipe. The sleeve is arranged to assist the guide pipe in installation, and the sleeve head is arranged to be connected and installed with the sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of a well kick and well leakage monitoring device, in particular to a well kick and well leakage monitoring device. Background Art

[0002] With the deepening of oilfield exploration and development, the deployment of ultra-deep wells, horizontal wells, high-angle directional wells and window sidetracking wells has increased day by day, which has put forward higher requirements for drilling production safety and on-site monitoring, and the difficulty of well control management has also increased day by day. How to quickly and accurately detect overflow well leakage on-site and avoid underground safety accidents has become one of the key technologies that need to be urgently solved on the drilling site.

[0003] After searching, it was found that a method and device for monitoring well kick and well leakage was disclosed in a Chinese patent with application number 202210764814.7, which includes the following steps: Step 1, external clamped multi-channel Doppler ultrasound for flow velocity detection; Step 2, a radar level meter with a low wave velocity angle detects the liquid level height and obtains the area; Step 3, the velocity-area method of comprehensive detection technology is used to measure and calculate the outlet flow; Step 4, an infrasound wave generating device measures the annulus liquid level height in real time; Step 5, early well kick and well leakage judgment can be made through the inlet and outlet flow difference.

[0004] However, the patents in the prior art have the following disadvantages:

[0005] The method and device for monitoring well kick and leakage are not provided with a drilling fluid buffer device. When the drilling fluid suddenly increases, it will cause huge impact pressure on the pipeline and damage the pipeline. No alarm device is provided, and no alarm can be issued when abnormal data information is monitored. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the utility model provides a well kick and leakage monitoring device, which solves the problems that a drilling fluid buffer device is not provided, when the drilling fluid suddenly increases, it will cause huge impact pressure on the pipeline and damage the pipeline; and when an alarm device is not provided, an alarm cannot be issued when abnormal data information is monitored.

[0008] (II) Technical solution

[0009] To achieve the above purpose, the utility model is implemented through the following technical scheme: it includes a catheter, characterized in that: the catheter is sleeved with a casing, a casing head is arranged at the upper end of the casing, a conversion flange is fixed to the upper end of the casing head by bolts, a first flange is fixed to the upper end of the conversion flange by bolts, a double-gate blowout preventer is arranged at the upper end of the first flange, an annular blowout preventer is connected to the upper end of the double-gate blowout preventer, a through pipe is arranged at the upper end of the annular blowout preventer, a drilling fluid outlet is arranged on one side of the through pipe, a flow monitoring device is connected to one side of the drilling fluid outlet through a pipeline, and a pressure sensor assembly is arranged on one side of the flow monitoring device.

[0010] As a preferred embodiment of the present invention, a solenoid valve is provided on one side of the pressure sensor assembly.

[0011] As a preferred embodiment of the utility model, one side of the solenoid valve is connected to a buffer box through a pipeline, and an upper cover is provided on the upper end of the buffer box.

[0012] As a preferred embodiment of the utility model, a bracket is fixed to one side of the buffer box by bolts, and a fixing plate is fixed to the upper end of the bracket by bolts.

[0013] As a preferred embodiment of the utility model, a controller is fixed to the upper end of the fixing plate by bolts, and the controller is electrically connected to other electrical devices.

[0014] As a preferred embodiment of the utility model, an alarm device is fixed to the upper end of the fixing plate by bolts, a buzzer is arranged at the upper end of the alarm device, and a warning light is arranged at the upper end of the alarm device.

[0015] As a preferred embodiment of the utility model, a fixing column is fixed to the upper end of the fixing plate by bolts, and a display operator is fixed to the upper end of the fixing column.

[0016] As a preferred embodiment of the present invention, a water pump is provided on one side of the buffer tank.

[0017] (III) Beneficial effects

[0018] The utility model provides a well kick and well leakage monitoring device, which has the following beneficial effects:

[0019] 1. The utility model provides a well kick and leakage monitoring device which is installed by setting a casing and an auxiliary guide tube, and is connected and installed with the casing by setting a casing head.

[0020] 2. The utility model provides a well kick and leakage monitoring device, which is used for connecting other pipelines by setting a four-way connection and for discharging liquid during the drilling process by setting a drilling fluid outlet.

[0021] 3. The utility model provides a well kick and leakage monitoring device by setting a flow monitoring device to monitor the drilling fluid output flow, and judges whether a well kick or leakage occurs by sudden changes in data and comparison with normal data. A pressure sensor component is set to monitor the internal pressure of the pipeline, and assists in monitoring whether a well kick or leakage occurs by comparing the pressure data with sudden changes in pressure data and comparison with normal data. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0025] Figure 3 It is a schematic diagram of the top structure of the utility model;

[0026] In the figure: 1. casing; 2. guide tube; 3. casing head; 4. conversion flange; 5. cross; 6. first flange; 7. double gate blowout preventer; 8. annular blowout preventer; 9. through pipe; 10. drilling fluid outlet; 11. flow monitoring device; 12. pressure sensor assembly; 13. solenoid valve; 14. upper cover; 15. display operator; 16. fixing column; 17. buzzer; 18. warning light; 19. alarm device; 20. controller; 21. fixing plate; 22. bracket; 23. water pump; 24. buffer tank. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figures 1 to 3The utility model provides a technical solution: a well kick and leakage monitoring device, comprising a catheter 2, the catheter 2 is sleeved with a casing 1, a casing head 3 is arranged on the upper end of the casing 1, a conversion flange 4 is fixed to the upper end of the casing head 3 by bolts, a first flange 6 is fixed to the upper end of the conversion flange 4 by bolts, a double-gate blowout preventer 7 is arranged on the upper end of the first flange 6, an annular blowout preventer 8 is connected to the upper end of the double-gate blowout preventer 7, a through pipe 9 is arranged on the upper end of the annular blowout preventer 8, a drilling fluid outlet 10 is arranged on one side of the through pipe 9, a flow monitoring device 11 is connected to one side of the drilling fluid outlet 10 through a pipeline, and a pressure sensor assembly 12 is arranged on one side of the flow monitoring device 11.

[0029] In a specific embodiment of the utility model, the conduit 2 is sleeved with a casing 1 for installing the casing 1 into the ground. A casing head 3 is provided at the upper end of the casing 1 for connecting the casing 1. A conversion flange 4 is fixed at the upper end of the casing head 3 for connecting and installing different devices. A first flange 6 is fixed at the upper end of the conversion flange 4 for installing and fixing a double-gate blowout preventer 7. A double-gate blowout preventer 7 is provided at the upper end of the first flange 6. An annular blowout preventer 8 is connected to the upper end of the double-gate blowout preventer 7 for closing the wellhead during oil testing, well repair, well completion and other operations to prevent blowout accidents. A through pipe is provided at the upper end of the annular blowout preventer 8. 9, which is used to connect with an external device. A drilling fluid outlet 10 is provided on one side of the through pipe 9 for outputting the liquid during the drilling process. A flow monitoring device 11 is connected to one side of the drilling fluid outlet 10 for monitoring the output flow of the drilling fluid, and judging whether a well kick or well leakage occurs by a sudden change in the data and a comparison with normal data. A pressure sensor assembly 12 is provided on one side of the flow monitoring device 11. The pressure sensor assembly 12 is provided to monitor the internal pressure of the pipeline, and to assist in monitoring whether a well kick or well leakage occurs by judging whether the pressure data changes suddenly and by a comparison with normal data.

[0030] Specifically, a solenoid valve 13 is disposed on one side of the pressure sensor assembly 12 .

[0031] In order to solve the problem of controlling the liquid output of the drilling output fluid pipeline, such as Figure 1 As shown, a solenoid valve 13 is provided on one side of the pressure sensor assembly 12 for controlling the liquid output of the drilling output fluid pipeline.

[0032] Specifically, one side of the solenoid valve 13 is connected to a buffer box 24 through a pipeline, and an upper cover 14 is provided on the upper end of the buffer box 24 .

[0033] In order to solve the problem of reducing the impact on the pipeline when well kicks and well leaks occur, Figure 1As shown, one side of the solenoid valve 13 is connected to a buffer box 24 through a pipeline. The buffer box 24 is provided to reduce the impact on the pipeline when a well kick or well leakage occurs and acts as a liquid buffer. An upper cover 14 is provided on the upper end of the buffer box 24 to cover the buffer box 24.

[0034] Specifically, a bracket 22 is fixed to one side of the buffer box 24 by bolts, and a fixing plate 21 is fixed to the upper end of the bracket 22 by bolts.

[0035] In order to solve the problem of fixing plate installation support, such as Figure 1 As shown, a bracket 22 is fixed to one side of the buffer box 24 for installing a fixing plate 21 , and a fixing plate 21 is fixed to the upper end of the bracket 22 for installing other devices.

[0036] Specifically, a controller 20 is fixed to the upper end of the fixing plate 21 by bolts, and the controller 20 is electrically connected to other electrical devices.

[0037] To solve the problem of controlling other devices, such as Figure 1 As shown, a controller 20 is fixed on the upper end of the fixing plate 21 , and the controller 20 is electrically connected to other electrical devices and controls them.

[0038] Specifically, an alarm device 19 is fixed to the upper end of the fixing plate 21 by bolts, a buzzer 17 is arranged on the upper end of the alarm device 19, and a warning light 18 is arranged on the upper end of the alarm device 19.

[0039] In order to solve the problem of abnormal data alarm, such as Figure 1 As shown, an alarm device 19 is fixed on the upper end of the fixed plate 21, a buzzer 17 is arranged on the upper end of the alarm device 19, and a warning light 18 is arranged on the upper end of the alarm device 19. When data abnormality is detected by the flow monitoring device 11 and the pressure sensor assembly 12, the alarm device 19 is controlled by the controller 20 to realize sound and visual alarm, so as to attract the attention of personnel in time to intervene immediately and prevent the occurrence of well kick and leakage.

[0040] Specifically, a fixing column 16 is fixed to the upper end of the fixing plate 21 by bolts, and a display operator 15 is fixed to the upper end of the fixing column 16 .

[0041] In order to solve the problem of data display and personnel being able to operate the device, such as Figure 1 As shown, a fixing column 16 is fixed to the upper end of the fixing plate 21 for mounting a fixed display operator 15 . A display operator 15 is fixed to the upper end of the fixing column 16 for displaying data information, and personnel can operate the device through the display operator 15 .

[0042] Specifically, a water pump 23 is provided on one side of the buffer tank 24 .

[0043] In order to solve the problem of drilling fluid discharge in the auxiliary buffer tank, such as Figure 1 As shown, a water pump 23 is provided on one side of the buffer box 24 to assist in discharging the drilling fluid in the buffer box 24 .

[0044] The specific implementation methods disclosed in the present invention omit detailed descriptions of known functions and known components. To ensure the compatibility of the equipment, the operating methods adopted are consistent with the parameters of commercially available equipment.

[0045] In summary, the working principle and use process of the utility model are as follows: the guide tube 2 is sleeved with the casing 1, which is used to install the casing 1 and pass it into the ground; the upper end of the casing 1 is provided with a casing head 3, which is used to connect the casing 1; the upper end of the casing head 3 is fixed with a conversion flange 4, which is used to connect and install different devices; the upper end of the conversion flange 4 is fixed with a first flange 6, which is used to install and fix a double-gate blowout preventer 7; the upper end of the first flange 6 is provided with a double-gate blowout preventer 7; the upper end of the double-gate blowout preventer 7 is connected with an annular blowout preventer 8, which is used to close the wellhead during oil testing, well repair, well completion and other operations to prevent blowout accidents; the upper end of the annular blowout preventer 8 is provided with a through pipe 9, which is used to connect with an external device A drilling fluid outlet 10 is provided on one side of the through pipe 9 for outputting the liquid during the drilling process. A flow monitoring device 11 is connected to one side of the drilling fluid outlet 10 for monitoring the output flow of the drilling fluid. By comparing the sudden change of the data with the normal data, it is judged whether a well kick or well leakage occurs. A pressure sensor assembly 12 is provided on one side of the flow monitoring device 11. By setting the pressure sensor assembly 12, it is used to monitor the internal pressure of the pipeline. By comparing the sudden change of the pressure data with the normal data, it is used to assist in monitoring whether a well kick or well leakage occurs. A solenoid valve 13 is provided on one side of the pressure sensor assembly 12 for drilling output fluid pipe. The liquid output of the circuit is controlled. A buffer box 24 is connected to one side of the solenoid valve 13 through a pipeline. The buffer box 24 is provided to reduce the impact on the pipeline when a well kick or well leakage occurs, and a liquid buffer is provided. An upper cover 14 is provided on the upper end of the buffer box 24 to cover the buffer box 24. A bracket 22 is fixed on one side of the buffer box 24 for installing a fixing plate 21. A fixing plate 21 is fixed on the upper end of the bracket 22 for installing other devices. A controller 20 is fixed on the upper end of the fixing plate 21. The controller 20 is electrically connected to other electrical devices and controls them. An alarm device 19 is fixed on the upper end of the fixing plate 21. A buzzer 17 is provided on the upper end of the alarm device 19. A warning light 18 is arranged on the upper end of the alarm device 19. Data abnormality is detected by the flow monitoring device 11 and the pressure sensor assembly 12. The alarm device 19 is controlled by the controller 20 to realize sound and visual alarm, so as to attract the attention of personnel in time for immediate intervention to prevent the occurrence of well kick and leakage. A fixed column 16 is fixed on the upper end of the fixed plate 21 for installing a fixed display operator 15. The display operator 15 is fixed on the upper end of the fixed column 16 for displaying data information, and personnel can operate the device through the display operator 15. A water pump 23 is arranged on one side of the buffer box 24 for assisting in discharging and outputting the drilling fluid in the buffer box 24.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A well kick and leakage monitoring device, comprising a guide tube (2), characterized in that: The guide tube (2) is sleeved with a casing (1), a casing head (3) is provided at the upper end of the casing (1), a conversion flange (4) is fixed to the upper end of the casing head (3) by bolts, a first flange (6) is fixed to the upper end of the conversion flange (4) by bolts, a double-gate blowout preventer (7) is provided at the upper end of the first flange (6), an annular blowout preventer (8) is connected to the upper end of the double-gate blowout preventer (7), a through pipe (9) is provided at the upper end of the annular blowout preventer (8), a drilling fluid outlet (10) is provided on one side of the through pipe (9), a flow monitoring device (11) is connected to one side of the drilling fluid outlet (10) through a pipeline, and the flow monitoring device (11) is provided on the upper end of the drilling fluid outlet (10). A pressure sensor assembly (12) is provided on one side of the device (11), a solenoid valve (13) is provided on one side of the pressure sensor assembly (12), a buffer box (24) is connected to one side of the solenoid valve (13) through a pipeline, an upper cover (14) is provided at the upper end of the buffer box (24), a bracket (22) is fixed to one side of the buffer box (24) by bolts, a fixing plate (21) is fixed to the upper end of the bracket (22) by bolts, an alarm device (19) is fixed to the upper end of the fixing plate (21) by bolts, a buzzer (17) is provided at the upper end of the alarm device (19), and a warning light (18) is provided at the upper end of the alarm device (19).

2. A well kick and leakage monitoring device according to claim 1, characterized in that: A controller (20) is fixed to the upper end of the fixing plate (21) by means of bolts, and the controller (20) is electrically connected to other electrical devices.

3. A well kick and leakage monitoring device according to claim 2, characterized in that: A fixing column (16) is fixed to the upper end of the fixing plate (21) by means of bolts, and a display operator (15) is fixed to the upper end of the fixing column (16).

4. A well kick and leakage monitoring device according to claim 3, characterized in that: A water pump (23) is provided on one side of the buffer tank (24).

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