A novel test valve actuator and its use method

The flow channel is controlled by a motor-driven ball valve and sliding sleeve, which solves the problems of complex structure and operation failure of the downhole test valve, realizes automatic control of multiple downhole well opening and closing and circulation channels, and improves the reliability and efficiency of operation.

CN119572754BActive Publication Date: 2025-10-03SOUTHWEST PETROLEUM ENG CO LTD SINOPEC
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Patent Information

Application Number
CN202510111933.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-01-24
Publication Date
2025-10-03
Estimated Expiration
2045-01-24

AI Technical Summary

Technical Problem

The existing downhole test valve has a complex structure during the oil and gas test process and is easily affected by friction and wellbore media, resulting in operation failure and inability to effectively switch wells and open circulation channels.

Method used

A new test valve actuator is used, which uses a motor to drive the ball valve and sleeve to realize automatic control of the flow channel. The motor drives the rotation of the ball and sleeve to realize the opening and closing of the flow channel, and combines wireless transmission technology to independently operate the valve.

Benefits of technology

It realizes automatic control of multiple opening and closing of wells and circulation channels underground, avoids the limitation of mechanical power transmission, and improves the reliability and efficiency of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a novel test valve actuator and its use method. The test valve actuator comprises an outer shell and an inner shell. The inner shell is disposed within the outer shell, forming an equipment annulus between the inner shell and the outer shell. The upper end of the equipment annulus is closed, and a ball valve is disposed at the lower end of the equipment annulus. The outer shell is provided with an external flow channel communicating with the equipment annulus, and the inner shell is provided with an internal flow channel communicating with the equipment annulus. A flow channel controller is disposed in the equipment annulus to control the conduction and closing of the external and internal flow channels. A ball valve controller is disposed in the equipment annulus to control the opening and closing of the ball valve. The present invention can realize multiple downhole well opening and closing and circulation channel opening and closing. With a single valve, it can replace the functions of existing traditional valve components such as RD circulation valves, RDS circulation valves, OMINI valves, N valves, and E valves, and is not limited by wellbore friction and well-killing fluid performance.
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Description

Technical Field

[0001] The present invention relates to the technical field of downhole control valves, in particular to a novel test valve actuator and a use method thereof. Background Art

[0002] Currently, during oil and gas testing, downhole test valves mainly use mechanical or pressure transmission power to complete valve mechanism replacement. This has the problem of complex structure and is easily affected by friction and wellbore media, resulting in operational failure.

[0003] Announcement No.: CN218716714U, discloses a hollow motor-driven full-bore infinite-stage fracturing intelligent sliding sleeve, including an upper joint, a wire outlet hole plug, a split nut, a control chamber, a battery, a center tube, a circuit board, a pressure sensor, a sensor mounting seat, a split nut, a hollow motor, a hollow motor rotor, a thrust bearing, a deep groove ball bearing, a rotating bearing seat, a guide flow sleeve, a main valve core, a flow center tube, and a lower joint. The split nut is set on the reserved notch of the upper joint, and the split nut is threadedly connected to the upper end of the control chamber.

[0004] This prior art opens the circulation channel through a hollow motor, but this prior art cannot perform well opening and closing operations.

[0005] Publication No.: CN118223811A discloses a downhole releasable internal plugging tool, a salvage device and a method of use that can be repeatedly disconnected. In the assembled state of the tool, the upper cylinder and the lower cylinder are connected to form a shell, and the upper core shaft and the lower core shaft are installed in the shell, and the locking part of the release mechanism is limited by the locking groove in cooperation with the upper core shaft. After the downward locking part of the upper core shaft and the locking groove are disengaged, the upper cylinder, the upper core shaft and the lower cylinder are separated to achieve release; the guide cone sliding groove and the guide cone of the sliding guide cone mechanism can cooperate with the salvage device to achieve multiple salvage; the J-shaped key of the J-shaped locking mechanism can lock the position of the lower core shaft and the lower cylinder after release; after release, the rotary switch mechanism drives the ball valve to rotate 90 degrees in the ball seat through the reversing member to achieve sealing of the through hole of the lower core shaft; the anchor tooth structure of the extrusion anchoring mechanism is extended to anchor with the casing.

[0006] The ball valve in the prior art is opened and closed by mechanical force, which is different from this patent, and the prior art does not involve the opening of the circulation channel.

[0007] Announcement No.: CN212105832U, discloses a downhole switch valve that can be detached or reconnected, including: a valve body, having an open position and a closed position, so that the downhole switch valve can be placed in a closed state or a connected state accordingly; a detaching tool, detachably connected to the valve body, capable of completing the detaching action and placing the valve body in the closed position; and a reconnecting tool, insertably installed in the valve body, capable of completing the reconnecting action and placing the valve body in the open position.

[0008] The ball valve in the prior art is opened and closed by mechanical force, which is different from this patent, and the prior art does not involve the opening of the circulation channel.

[0009] In short, the technical solutions, technical problems to be solved and beneficial effects produced by the above-mentioned disclosed technologies are all different from the present invention. Regarding more technical features, technical problems to be solved and beneficial effects of the present invention, the above-mentioned disclosed technical documents do not provide any technical inspiration. Summary of the Invention

[0010] In view of the above-mentioned defects in the prior art, an object of the present invention is to provide a novel test valve actuator and a method of using the same.

[0011] In order to achieve the above object, the present invention adopts the following technical solutions:

[0012] On the one hand, the present invention provides a new test valve actuator, including an outer shell and an inner shell, the inner shell is arranged inside the outer shell, and an equipment annulus is formed between the inner shell and the outer shell, the upper end of the equipment annulus is closed, and a ball valve is arranged at the lower end of the equipment annulus; the outer shell is provided with an external flow channel connected to the equipment annulus, and the inner shell is provided with an internal flow channel connected to the equipment annulus; a flow channel controller for controlling the conduction and closing of the external flow channel and the internal flow channel is provided in the equipment annulus; a ball valve controller for controlling the opening and closing of the ball valve is provided in the equipment annulus.

[0013] Furthermore, the ball valve includes a ball body and a ball seat;

[0014] Specifically, the ball is provided with a through flow channel, the outer wall of the ball seat is connected to the inner wall of the outer shell, the inner wall of the upper end of the ball seat is connected to the inner shell, the center of the ball seat is through, the inner wall of the ball seat is provided with a spherical surface, and the ball is placed in the spherical surface of the ball seat;

[0015] Specifically, the ball valve controller includes a first motor, a first output shaft of the first motor is connected to the ball through a first reversing transmission mechanism, and the first motor drives the ball to rotate.

[0016] Furthermore, the first reversing transmission mechanism includes a worm segment and a worm wheel groove;

[0017] Specifically, the first output shaft of the first motor is inserted into the ball seat, and the first output shaft penetrates the edge of the spherical surface of the ball seat;

[0018] Specifically, the first output shaft is provided with a worm segment, the outer wall of the sphere is provided with a worm wheel groove, and the worm segment is meshed with the worm wheel groove;

[0019] Specifically, the worm wheel groove is communicated with the lower end of the flow channel, and the worm wheel groove is closed with the upper end of the flow channel.

[0020] Furthermore, the flow channel controller includes a second motor and a sliding sleeve;

[0021] Specifically, the second motor is a hollow motor, the second motor is sleeved outside the inner housing, and the second output shaft of the second motor is connected to the sliding sleeve through a second reversing transmission mechanism;

[0022] Specifically, the sliding sleeve is located between the outer flow channel and the inner flow channel, the sliding sleeve is sealed with the outer wall of the inner shell, and the sliding sleeve is sealed with the inner wall of the outer shell.

[0023] Furthermore, the second reversing transmission mechanism includes an external thread section, an internal thread section, and a guide ring;

[0024] Specifically, an external thread section is provided on the outer wall of the second output shaft, an internal thread section is provided on the inner wall of the sliding sleeve, and the external thread section is connected to the internal thread section;

[0025] Specifically, the guide ring is arranged between the second motor and the sliding sleeve, the guide ring is connected to the outer shell or the second motor, the guide ring is provided with a limiting rod, and the sliding sleeve is provided with a limiting groove at one end close to the second motor. The limiting rod cooperates with the limiting groove to prevent the sliding sleeve from rotating, so that the sliding sleeve can only slide up and down.

[0026] Furthermore, the flow channel controller is arranged below the outer flow channel and the inner flow channel, and the ball valve controller is arranged below the flow channel controller.

[0027] Furthermore, an inner convex ring is provided on the inner wall of the upper end of the outer shell, and an outer convex ring is provided on the outer wall of the upper end of the outer shell, and the upper end surface of the outer convex ring contacts the lower end surface of the inner convex ring;

[0028] Specifically, the outer wall of the outer convex ring and the inner wall of the outer shell; an upper joint is provided at the upper end of the outer shell;

[0029] Specifically, the outer shell is provided with a flow convex ring between the second output shaft and the outer convex ring, the inner flow channel is provided on the flow convex ring, and the lower end surface of the flow convex ring contacts the upper end of the second output shaft;

[0030] Specifically, the outer wall of the flow convex ring is provided with inner sealing rings above and below the inner flow channel, and the outer wall of the sliding sleeve is provided with an outer sealing ring below the outer flow channel.

[0031] Preferably, the upper end of the outer shell is connected to a communication short section, and a wireless receiving module is provided in the communication short section;

[0032] Specifically, a battery and a circuit board are arranged in the annulus of the device;

[0033] Specifically, the battery is used to supply power to the first motor, the second motor, and the circuit board;

[0034] Specifically, a control chip is provided on the circuit board for controlling the first motor and the second motor;

[0035] Specifically, the outer shell is provided with a side cable sealing joint, and the circuit board is electrically connected to the wireless receiving module through the communication cable and the side cable sealing joint to achieve reception of the uphole signal;

[0036] Specifically, the lower end of the outer shell is connected to the lower joint.

[0037] Another preferred embodiment is that the upper end of the outer shell is connected to a communication short section, and a wireless receiving module is provided in the communication short section;

[0038] Specifically, it also includes an electric control pup joint, the outer wall of the upper end of the electric control pup joint is connected to the inner wall of the lower end of the outer shell, the outer wall of the electric control pup joint is provided with a groove-shaped electric control compartment, the electric control pup joint is connected to the electric control compartment shell outside the electric control compartment, and the electric control compartment shell seals the electric control compartment;

[0039] Specifically, a battery and a circuit board are arranged in the electric control compartment;

[0040] Specifically, a lower cable passage is provided at one end of the electric control short section close to the ball seat, an upper cable passage is provided on the ball seat, a lower cable sealing joint is provided at the lower end of the lower cable passage, an upper cable sealing joint is provided at the upper end of the upper cable passage, and a cable is provided between the lower cable sealing joint and the upper cable sealing joint;

[0041] Specifically, the battery and the circuit board are electrically connected to the lower cable sealing joint, and the first motor and the second motor are electrically connected to the upper cable sealing joint;

[0042] Specifically, the battery is used to supply power to the first motor, the second motor, and the circuit board;

[0043] Specifically, a control chip is provided on the circuit board for controlling the first motor and the second motor;

[0044] Specifically, the electric control compartment housing is provided with a side cable sealing joint, and the circuit board is electrically connected to the wireless receiving module through the communication cable and the side cable sealing joint to achieve reception of uphole signals;

[0045] Specifically, a lower joint is provided at the lower end of the electrically controlled short section.

[0046] In a second aspect, the present invention provides a method for using a novel test valve actuator, which includes the following steps:

[0047] S1. Connect a new test valve actuator to the tubing string and lower it into the well;

[0048] S2. When a well needs to be opened, a well opening command is sent, and the circuit board controls the first motor to drive the first output shaft to rotate, thereby rotating the sphere and connecting the flow passage with the central passage of the inner shell, thereby completing the well opening;

[0049] When the well needs to be shut in, a shut-in command is sent, and the circuit board controls the first motor to drive the first output shaft to rotate, thereby rotating the ball so that the side of the ball without the worm gear groove blocks the lower port of the ball seat, thereby completing the well shut-in.

[0050] S3. When the circulation channel needs to be opened, a circulation channel opening command is sent, and the circuit board controls the second motor to drive the second output shaft to rotate, causing the sliding sleeve to descend, so that the outer flow channel is connected to the inner flow channel, and the circulation channel is opened;

[0051] When the circulation channel needs to be closed, a circulation channel closing command is sent, and the circuit board controls the second motor to drive the second output shaft to rotate, causing the sleeve to rise, disconnecting the outer flow channel from the inner flow channel, and completing the closing of the circulation channel.

[0052] Compared with the prior art, the present invention has the following beneficial effects:

[0053] The present invention is self-powered and does not require mechanical power to be transmitted through the pipe string on the ground or hydraulic power to be provided by wellhead pressurization. It can cooperate with wireless transmission technology to receive ground signals, independently operate the circulation valve and ball valve switches, and realize multiple opening and closing of wells and circulation channels underground. A single valve can replace the functions of existing traditional valve components such as RD circulation valves, RDS circulation valves, OMINI valves, N valves, and E valves, and is not limited by wellbore friction and well-killing fluid performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 It is a schematic diagram of the external structure of the present invention.

[0055] Figure 2 It is a structural schematic diagram of the circulation channel and the opening and closing of the ball valve of the present invention.

[0056] Figure 3 This is an oblique view of the present invention after removing the outer shell and the electric control compartment shell.

[0057] Figure 4 It is a structural schematic diagram of the flow channel controller of the present invention.

[0058] Figure 5 It is a structural diagram of the ball valve controller of the present invention.

[0059] In the figure: 1. Outer shell; 101. Outer flow channel; 2. Electric control compartment outer shell; 3. Electric control short section; 301. Electric control compartment; 4. Inner shell; 401. Inner flow channel; 5. Sleeve; 6. Second motor; 7. Second output shaft; 8. First motor; 9. First output shaft; 901. Worm segment; 10. Sphere; 1001. Worm gear groove; 11. Battery; 12. Circuit board; 13. Guide ring; 14. Ball seat; 15. Equipment annulus. DETAILED DESCRIPTION

[0060] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0061] Example 1:

[0062] See also Figures 1 to 5 A new test valve actuator provided in this embodiment includes an outer shell 1 and an inner shell 4. The inner shell 4 is arranged inside the outer shell 1, and an equipment annulus 15 is formed between the inner shell 4 and the outer shell 1. The upper end of the equipment annulus 15 is closed, and a ball valve is provided at the lower end of the equipment annulus 15. The outer shell 1 is provided with an outer flow channel 101 communicating with the equipment annulus 15, and the inner shell 4 is provided with an inner flow channel 401 communicating with the equipment annulus 15. A flow channel controller and a ball valve controller are provided in the equipment annulus 15. The flow channel controller controls the conduction between the outer flow channel 101 and the inner flow channel 401, and the ball valve controller controls the opening and closing of the ball valve.

[0063] Furthermore, the ball valve includes a ball 10 and a ball seat 14, the ball 10 is provided with a through flow channel, the outer wall of the ball seat 14 is threadedly connected to the inner wall of the outer shell 1 and is sealed by a sealing ring, the inner wall of the upper end of the ball seat 14 is threadedly connected to the inner shell 4 and is sealed by a sealing ring, the center of the ball seat 14 is through, the inner wall of the ball seat 14 is provided with a spherical surface, and the ball 10 is placed in the spherical surface of the ball seat 14; the ball valve controller includes a first motor 8, the first output shaft 9 of the first motor 8 is connected to the ball 10 through a first reversing transmission mechanism, and the first motor 8 drives the ball 10 to rotate to control the conduction and closing of the ball valve.

[0064] Specifically, the first reversing transmission mechanism includes a worm segment 901 and a worm gear groove 1001. The first output shaft 9 of the first motor 8 is inserted into the ball seat 14. The first output shaft 9 penetrates the spherical surface edge of the ball seat 14. The first output shaft 9 is provided with a worm segment 901. The outer wall of the sphere 10 is provided with a worm gear groove 1001. The worm segment 901 is engaged with the worm gear groove 1001. Through the worm gear transmission, the first motor 8 can control the rotation of the sphere 10, and the self-locking characteristics of the worm gear can stabilize the position of the sphere 10 to prevent the impact of the well fluid from changing the position of the sphere 10.

[0065] Specifically, the worm gear groove 1001 is connected to the lower end of the flow channel, and the worm gear groove 1001 is closed to the upper end of the flow channel, so that the side of the ball 10 without the worm gear groove 1001 serves as the closed surface of the ball valve.

[0066] Specifically, the polished rod surface of the first output shaft 9 and the ball seat 14 are sealed by a sealing ring.

[0067] Furthermore, the flow channel controller includes a second motor 6 and a sleeve 5. The second motor 6 is a hollow motor. The second motor 6 is sleeved on the outside of the inner shell 4. The second output shaft 7 of the second motor 6 is connected to the sleeve 5 through a second reversing transmission mechanism. The sleeve 5 is located between the outer flow channel 101 and the inner flow channel 401. The sleeve 5 is sealed to the outer wall of the inner shell 4, and the sleeve 5 is sealed to the inner wall of the outer shell 1.

[0068] Specifically, the second reversing transmission mechanism includes an external thread section, an internal thread section, and a guide ring 13. The external thread section is provided on the outer wall of the second output shaft 7, and the internal thread section is provided on the inner wall of the sleeve 5, and the external thread section is connected to the internal thread section; the guide ring 13 is provided between the second motor 6 and the sleeve 5, and the guide ring 13 is threadedly connected to the outer shell 1 or connected to the second motor 6 by bolts. The guide ring 13 is provided with a limiting rod, and a limiting groove is provided at one end of the sleeve 5 close to the second motor 6. The limiting rod cooperates with the limiting groove to prevent the sleeve 5 from rotating, so that the sleeve 5 can only slide up and down, and the second output shaft 7 is driven to rotate by the second motor 6. The threaded transmission and the limiting rod limit the sleeve 5 to move up and down, opening or closing the conduction between the outer flow channel 101 and the inner flow channel 401.

[0069] Specifically, the flow channel controller is arranged below the outer flow channel 101 and the inner flow channel 401, and the ball valve controller is arranged below the flow channel controller, so that the sealing measures arranged on the second output shaft 7 and the first output shaft 9 can seal the equipment annulus 15 without the need for redundant seals.

[0070] Furthermore, an inner convex ring is provided on the inner wall of the upper end of the outer shell 1, and an outer convex ring is provided on the outer wall of the upper end of the outer shell 1. The upper end surface of the outer convex ring contacts the lower end surface of the inner convex ring to achieve positioning. The outer wall of the outer convex ring is threadedly connected to the inner wall of the outer shell 1 and is sealed by a sealing ring; an upper joint is provided on the upper end of the outer shell 1.

[0071] Specifically, the outer shell 1 is provided with a flow convex ring between the second output shaft 7 and the outer convex ring, the inner flow channel 401 is provided on the flow convex ring, the lower end face of the flow convex ring is in contact with the upper end of the second output shaft 7, so as to realize the positioning of the second output shaft 7, the outer wall of the flow convex ring is provided with an inner sealing ring above and below the inner flow channel 401, and the outer wall of the sleeve 5 is provided with an outer sealing ring below the outer flow channel, so as to realize the sealing of the sleeve 5 in both the on and off states; the transition step between the outer convex ring and the flow convex ring plays a role in positioning the sleeve 5.

[0072] Specifically, the upper end of the upper connector is connected to a communication short section, and a wireless receiving module is provided in the communication short section for receiving signals.

[0073] In this embodiment, a battery 11 and a circuit board 12 are arranged in the annulus of the equipment. The battery 11 is used to supply power to the first motor 8, the second motor 6, and the circuit board 12. A control chip is provided on the circuit board 12 to control the first motor 8 and the second motor 6. The outer shell 1 is provided with a side cable sealing joint. The circuit board 12 is electrically connected to the wireless receiving module through the communication cable and the side cable sealing joint to realize the reception of the well signal; the lower end of the outer shell 1 is connected to the lower joint.

[0074] Example 2:

[0075] Since the first output shaft 9 and the second output shaft 7 are moving parts, their sealing life is relatively short, in order to prevent leakage from threatening the circuit board 12.

[0076] On the basis of Example 1, this embodiment further includes an electric control short section 3, the outer wall of the upper end of the electric control short section 3 is threadedly connected to the inner wall of the lower end of the outer shell 1 and is sealed by a sealing ring, a groove-shaped electric control compartment 301 is provided on the outer wall of the electric control short section 3, the electric control short section 3 is connected to the electric control compartment shell 2 by threads outside the electric control compartment 301, and multiple sealing rings are provided on the outer wall of the electric control short section 3 above and below the electric control compartment 301 to seal with the electric control compartment shell 2.

[0077] A battery 11 and a circuit board 12 are set in the electric control warehouse 301. A lower cable channel is set at one end of the electric control short section 3 near the ball seat 14. The ball seat 14 is set at an upper cable channel. A lower cable sealing joint is set at the lower end of the lower cable channel, and an upper cable sealing joint is set at the upper end of the upper cable channel. An anti-corrosion cable is set between the lower cable sealing joint and the upper cable sealing joint. The battery 11 and the circuit board 12 are electrically connected to the lower cable sealing joint, and the first motor 8 and the second motor 6 are electrically connected to the upper cable sealing joint. The battery 11 is used to supply power to the first motor 8, the second motor 6 and the circuit board 12. A control chip is set on the circuit board 12 to control the first motor 8 and the second motor 6. A side cable sealing joint is set on the electric control warehouse housing 2. The circuit board 12 is electrically connected to the wireless receiving module through the communication cable and the side cable sealing joint to realize the reception of the well signal.

[0078] A lower joint is provided at the lower end of the electric control sub 3 .

[0079] It should be noted that the battery 11, circuit board 12, control chip, wireless receiving module, and cable sealing connector themselves belong to the existing technology. Those skilled in the art are clear about their structure and usage, so they are not described in detail.

[0080] Example 3:

[0081] Based on Example 1 or Example 2, this embodiment provides a method for using a new test valve actuator, including the following steps:

[0082] S1. Connect a new test valve actuator to the tubing string and lower it into the well;

[0083] S2. When a well needs to be opened, a well opening command is sent, and the circuit board 12 controls the first motor 8, causing the first motor 8 to drive the first output shaft 9 to rotate, causing the sphere 10 to rotate, so that the flow passage is connected to the central passage of the inner shell 4, completing the well opening;

[0084] When the well needs to be shut in, a shut-in command is sent, and the circuit board 12 controls the first motor 8, causing the first motor 8 to drive the first output shaft 9 to rotate, causing the ball 10 to rotate, so that the side of the ball 10 without the worm gear groove 1001 blocks the lower port of the ball seat 14, completing the well shut-in.

[0085] S3. When the circulation channel needs to be opened, a circulation channel opening command is sent, and the circuit board 12 controls the second motor 6 to drive the second output shaft 7 to rotate, so that the sliding sleeve 5 descends, and the outer flow channel 101 is connected with the inner flow channel 401, completing the opening of the circulation channel;

[0086] When the circulation channel needs to be closed, a circulation channel closing command is sent, and the circuit board 12 controls the second motor 6 to drive the second output shaft 7 to rotate, so that the sleeve 5 rises, the outer flow channel 101 is disconnected from the inner flow channel 401, and the circulation channel is closed.

[0087] The present invention has its own power and does not require the transmission of mechanical power through the pipe string on the ground or the wellhead pressurization to provide hydraulic power, and can realize multiple opening and closing of wells and opening and closing circulation channels underground.

[0088] All components not discussed in detail in this application and the connection methods of the components in this application are well-known technologies in the technical field and can be directly applied without further explanation.

[0089] In the present invention, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean fixed, removable, or integral; and "connected" can mean directly or indirectly through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0090] In the description of the present invention, it should be understood that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0091] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0092] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A method for using a novel test valve actuator, characterized in that: The test valve actuator used in the method includes an outer shell and an inner shell. The inner shell is arranged inside the outer shell. An equipment annulus is formed between the inner shell and the outer shell. The upper end of the equipment annulus is closed, and a ball valve is arranged at the lower end of the equipment annulus. The outer shell is provided with an outer flow channel communicating with the annulus of the equipment, and the inner shell is provided with an inner flow channel communicating with the annulus of the equipment; A flow channel controller for controlling the conduction and closing of the outer flow channel and the inner flow channel is provided in the annulus of the equipment; a ball valve controller for controlling the opening and closing of the ball valve is provided in the annulus of the equipment; The ball valve includes a ball body and a ball seat; The ball is provided with a through flow channel, the outer wall of the ball seat is connected to the inner wall of the outer shell, the inner wall of the upper end of the ball seat is connected to the inner shell, the center of the ball seat is through, the inner wall of the ball seat is provided with a spherical surface, and the ball is placed in the spherical surface of the ball seat; The ball valve controller includes a first motor, a first output shaft of the first motor is connected to the ball through a first reversing transmission mechanism, and the first motor drives the ball to rotate; The first reversing transmission mechanism includes a worm segment and a worm wheel groove; The first output shaft of the first motor is inserted into the ball seat, and the first output shaft penetrates the edge of the spherical surface of the ball seat; The first output shaft is provided with a worm segment, the outer wall of the sphere is provided with a worm wheel groove, and the worm segment is meshed with the worm wheel groove; The worm wheel groove is connected to the lower end of the flow channel, and the worm wheel groove is closed to the upper end of the flow channel; The flow channel controller includes a second motor and a sliding sleeve; The second motor is a hollow motor, the second motor is sleeved outside the inner housing, and the second output shaft of the second motor is connected to the sliding sleeve through a second reversing transmission mechanism; The sliding sleeve is located between the outer flow channel and the inner flow channel, the sliding sleeve is sealed against the outer wall of the inner shell, and the sliding sleeve is sealed against the inner wall of the outer shell; The second reversing transmission mechanism includes an external thread section, an internal thread section, and a guide ring; An external thread section is provided on the outer wall of the second output shaft, an internal thread section is provided on the inner wall of the sliding sleeve, and the external thread section is connected to the internal thread section; The guide ring is arranged between the second motor and the sliding sleeve, and the guide ring is connected to the outer shell or the second motor. The guide ring is provided with a limit rod, and the sliding sleeve is provided with a limit groove at one end close to the second motor. The limit rod cooperates with the limit groove to prevent the sliding sleeve from rotating, so that the sliding sleeve can only slide up and down; The flow channel controller is arranged below the outer flow channel and the inner flow channel, and the ball valve controller is arranged below the flow channel controller; An inner convex ring is provided on the inner wall of the upper end of the outer shell, and an outer convex ring is provided on the outer wall of the upper end of the outer shell, wherein the upper end surface of the outer convex ring contacts the lower end surface of the inner convex ring; The outer wall of the outer convex ring and the inner wall of the outer shell; an upper joint is provided at the upper end of the outer shell; The outer shell is provided with a flow convex ring between the second output shaft and the outer convex ring, the inner flow channel is provided on the flow convex ring, and the lower end surface of the flow convex ring contacts the upper end of the second output shaft; The outer wall of the flow convex ring is provided with inner sealing rings above and below the inner flow channel, and the outer wall of the sliding sleeve is provided with an outer sealing ring below the outer flow channel; The upper end of the outer shell is connected to a communication short section, and a wireless receiving module is arranged in the communication short section; Batteries and circuit boards are arranged in the annulus of the equipment; The battery is used to supply power to the first motor, the second motor, and the circuit board; A control chip is provided on the circuit board for controlling the first motor and the second motor; The outer shell is provided with a side cable sealing joint, and the circuit board is electrically connected to the wireless receiving module through the communication cable and the side cable sealing joint to realize the reception of the well signal; The lower end of the outer shell is connected to the lower joint; The upper end of the outer shell is connected to a communication short section, and a wireless receiving module is arranged in the communication short section; It also includes an electric control pup joint, wherein the outer wall of the upper end of the electric control pup joint is connected to the inner wall of the lower end of the outer shell, the outer wall of the electric control pup joint is provided with a groove-shaped electric control compartment, the electric control pup joint is connected to the electric control compartment shell outside the electric control compartment, and the electric control compartment shell seals the electric control compartment; Batteries and circuit boards are arranged in the electric control compartment; A lower cable passage is provided at one end of the electric control short section close to the ball seat, an upper cable passage is provided on the ball seat, a lower cable sealing joint is provided at the lower end of the lower cable passage, an upper cable sealing joint is provided at the upper end of the upper cable passage, and a cable is provided between the lower cable sealing joint and the upper cable sealing joint; The battery and the circuit board are electrically connected to the lower cable sealing joint, and the first motor and the second motor are electrically connected to the upper cable sealing joint; The battery is used to supply power to the first motor, the second motor, and the circuit board; A control chip is provided on the circuit board for controlling the first motor and the second motor; The electric control compartment housing is provided with a side cable sealing joint, and the circuit board is electrically connected to the wireless receiving module through the communication cable and the side cable sealing joint to achieve reception of uphole signals; A lower joint is provided at the lower end of the electric control short section; The method of use includes the following steps: S1. Connect a new test valve actuator to the tubing string and lower it into the well; S2. When a well needs to be opened, a well opening command is sent, and the circuit board controls the first motor to drive the first output shaft to rotate, thereby rotating the sphere and connecting the flow passage with the central passage of the inner shell, thereby completing the well opening; When the well needs to be shut in, a shut-in command is sent, and the circuit board controls the first motor to drive the first output shaft to rotate, thereby rotating the ball so that the side of the ball without the worm gear groove blocks the lower port of the ball seat, thereby completing the well shut-in. S3. When the circulation channel needs to be opened, a circulation channel opening command is sent, and the circuit board controls the second motor to drive the second output shaft to rotate, causing the sliding sleeve to descend, so that the outer flow channel is connected to the inner flow channel, and the circulation channel is opened; When the circulation channel needs to be closed, a circulation channel closing command is sent, and the circuit board controls the second motor to drive the second output shaft to rotate, causing the sleeve to rise, disconnecting the outer flow channel from the inner flow channel, and completing the closing of the circulation channel.

Citation Information

Patent Citations

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