CN216841567U - Two-channel sliding sleeve switch - Google Patents

Abstract

The utility model belongs to the technical field of oil development equipment, a two-channel sliding sleeve switch is disclosed, including switch main part, sliding sleeve and drive assembly. The switch main body is provided with a first inner cavity extending along the axial direction of the switch main body, a first flow channel outer opening used for being communicated with an oil pipe is formed in the end face of the top end of the switch main body, a second flow channel outer opening is formed in the outer side face of the top end of the switch main body, a third flow channel outer opening is formed in the end face of the bottom end of the switch main body, and the first flow channel outer opening, the second flow channel outer opening and the third flow channel outer opening are communicated with the first inner cavity. The sliding sleeve is arranged in the first inner cavity in a sliding mode. The driving assembly is arranged in the switch main body and is in transmission connection with the sliding sleeve, and the driving assembly can drive the sliding sleeve to move along the axial direction of the switch main body so as to disconnect the second flow channel outer port and/or the third flow channel outer port from the first inner cavity. The two-channel sliding sleeve switch can realize single-layer exploitation of different oil layers, and when the oil yield of a certain oil layer is reduced, the oil exploitation layer can be replaced.

Description

Two-channel sliding sleeve switch

Technical Field

The utility model relates to an oil development equipment technical field especially relates to a two-channel sliding sleeve switch.

Background

The sliding sleeve switch is one of the important downhole tools in the water injection and fracturing operations of an oil well, the existing sliding sleeve switch can only carry out exploitation or multilayer combined exploitation on a single oil layer, when the single oil layer is exploited, complex operation is required to be carried out when the oil exploitation layer is replaced, the efficiency of the oil exploitation operation is reduced, and the cost is high and the risk is large. And the problem of stratum string due to different formation pressures is easy to occur when multi-layer commingling production is carried out.

Therefore, a two-way sliding sleeve switch is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a two-channel sliding sleeve switch can realize the individual layer exploitation to different oil reservoirs to when a certain oil reservoir oil yield reduces, can change the exploitation oil reservoir.

To achieve the purpose, the utility model adopts the following technical proposal:

a two-way sliding sleeve switch comprising:

the switch comprises a switch main body, a first switch body and a second switch body, wherein the switch main body is provided with a first inner cavity extending along the axial direction of the switch main body, a first flow channel outer port used for being communicated with an oil pipe is arranged on the end surface of the top end of the switch main body, a second flow channel outer port is arranged on the outer side surface of the top end of the switch main body, a third flow channel outer port is arranged on the end surface of the bottom end of the switch main body, and the first flow channel outer port, the second flow channel outer port and the third flow channel outer port are all communicated with the first inner cavity;

the sliding sleeve is arranged in the first inner cavity in a sliding mode;

the driving assembly is arranged in the switch main body and is in transmission connection with the sliding sleeve, and the driving assembly can drive the sliding sleeve to move axially along the switch main body so as to disconnect the second flow channel outer port and/or the third flow channel outer port from the first inner cavity.

Preferably, the driving assembly includes:

the motor is fixedly arranged on the switch main body;

the bottom end of the adjusting rod is connected with a rotating shaft of the motor, and the adjusting rod can rotate along with the rotating shaft of the motor;

the top end of the adjusting rod is in threaded connection with the bottom end of the control rod, the top end of the control rod is fixedly connected with the bottom end of the sliding sleeve, the control rod can slide relative to the switch main body along the axial direction of the switch main body, a first limiting surface is arranged on the outer side wall of the control rod, a second limiting surface is arranged on the switch main body, the first limiting surface and the second limiting surface are both parallel to the axis of the switch main body, and the first limiting surface and the second limiting surface are matched to prevent the control rod from rotating relative to the switch main body around the axis of the switch main body;

a battery disposed within the switch body, the battery being electrically connected to the motor.

Preferably, the switch main body is provided with a first flow passage and a second flow passage, a first flow passage inner opening and a second flow passage inner opening located below the first flow passage inner opening are arranged on the cavity wall of the first inner cavity, the first flow passage inner opening is communicated with the second flow passage outer opening through the first flow passage, and the second flow passage inner opening is communicated with the third flow passage outer opening through the second flow passage.

Preferably, a second inner cavity is arranged in the sliding sleeve, a first communication hole communicated with the first flow channel outer opening is formed in the top end face of the sliding sleeve, a communication is formed in the side wall of the sliding sleeve, the outer side of the sliding sleeve is communicated with a second communication hole of the second inner cavity, the sliding sleeve is provided with a first working position and a second working position, when the sliding sleeve is located at the first working position, the first flow channel inner opening is communicated with the second communication hole, the outer side wall of the sliding sleeve covers the second flow channel inner opening, when the sliding sleeve is located at the second working position, the second flow channel inner opening is communicated with the second communication hole, and the outer side wall of the sliding sleeve covers the first flow channel inner opening.

Preferably, the control rod is provided with a first limiting surface, the switch main body is provided with a second limiting surface and a third limiting surface, the first limiting surface, the second limiting surface and the third limiting surface are arranged at an included angle with the axis of the switch main body, the sliding sleeve is located in the first working position, the first limiting surface is abutted to the second limiting surface, and the sliding sleeve is located in the second working position, the bottom end surface of the sliding sleeve is abutted to the third limiting surface.

Preferably, the sliding sleeve further has a third working position, when the sliding sleeve is located at the third working position, the second communication hole is located between the first flow channel inner opening and the second flow channel inner opening, and the outer side wall of the sliding sleeve covers the first flow channel inner opening and the second flow channel inner opening.

Preferably, the driving assembly further comprises a bearing arranged on the switch main body, and the bearing is sleeved on the adjusting rod.

Preferably, the driving assembly further comprises a coupler, and a rotating shaft of the motor is connected with the first end of the adjusting rod through the coupler.

Preferably, the method further comprises the following steps:

the control module is arranged in the switch main body and used for controlling the driving assembly, and the control module is electrically connected with the driving assembly;

and the pressure sensor is arranged in the switch main body and used for monitoring the pressure in the first inner cavity, and the pressure sensor is electrically connected with the control module.

Preferably, an equipment cavity is formed in the switch main body, and the pressure sensor and the control module are both arranged in the equipment cavity.

The utility model has the advantages that:

the utility model discloses a two-channel sliding sleeve switch, first flow channel outer port is used for intercommunication oil pipe, second flow channel outer port and third flow channel outer port are used for the different oil reservoir of intercommunication, through the intercommunication of sliding sleeve disconnection second flow channel outer port and first inner chamber, can carry out the individual layer to the oil reservoir of third flow channel outer port intercommunication and exploit, through the intercommunication of sliding sleeve disconnection third flow channel outer port and first inner chamber, can carry out the individual layer to the oil reservoir of second flow channel outer port intercommunication and exploit, thereby can realize the individual layer exploitation to different oil reservoirs, because stratum pressure difference and the problem on cluster layer when preventing the multilayer exploitation, and when certain oil reservoir exploitation one-time oil yield reduces, order about the sliding sleeve that sets up in first inner chamber through drive assembly and slide and more open the oil reservoir, help former oil reservoir to resume stratum energy.

Furthermore, the utility model discloses a two-channel sliding sleeve switch still includes control module and pressure sensor. When an oil production layer needs to be adjusted, the ground central control room sends an instruction, the oil production layer is closed or opened through the electromagnetic valve of the wellhead of the oil well, a pressure curve is generated in an oil pipe to form an instruction code, pressure data in the first inner cavity are monitored through the pressure sensor and transmitted to the control module, the control module receives the pressure data to obtain the instruction code, the driving assembly is controlled to operate according to the instruction code, and therefore wireless control over the two-channel sliding sleeve switch can be achieved.

Drawings

Fig. 1 is a schematic structural view of a two-way sliding sleeve switch according to an embodiment of the present invention when a sliding sleeve is in a first working position;

fig. 2 is a schematic structural view of a two-way sliding sleeve switch according to an embodiment of the present invention when the sliding sleeve is in a second working position;

fig. 3 is a schematic structural view of a two-way sliding sleeve switch according to an embodiment of the present invention when the sliding sleeve is in a third working position.

In the figure:

10. a first lumen; 20. a first flow channel outer port; 30. a second flow passage outer port; 40. a third flow channel outer port; 50. a first flow passage; 60. a second flow passage; 70. a first flow passage inner port; 80. a second flow passage inner port; 90. a second lumen; 100. an equipment chamber;

1. a switch main body; 11. a fourth limiting surface; 12. a fifth limiting surface; 13. a control section; 14. a connecting section; 141. a third communication hole; 142. a tubular connecting portion; 143. a fourth communication hole; 15. a connecting pipe; 16. a drive section; 161. a jacket; 162. an inner sleeve; 163. a battery holder; 17. a joint;

2. a sliding sleeve; 21. a first communication hole; 22. a second communication hole;

3. a drive assembly; 31. a motor; 32. adjusting a rod; 33. a control lever; 331. a third limiting surface; 332. a limiting section; 333. a sealing section; 34. a battery; 35. a bearing; 36. a coupling;

4. a control module;

5. a pressure sensor.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some of the structures associated with the present invention are shown in the drawings, not all of them.

In the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected", "connected" and "fixed" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1, the present embodiment provides a two-channel sliding sleeve switch, which includes a switch main body 1, a sliding sleeve 2 and a driving assembly 3. The switch main body 1 is provided with a first inner cavity 10 extending along the axial direction of the switch main body 1, a first flow channel outer port 20 used for being communicated with an oil pipe is arranged on the end face of the top end of the switch main body 1, a second flow channel outer port 30 is arranged on the outer side face of the top end of the switch main body 1, a third flow channel outer port 40 is arranged on the end face of the bottom end of the switch main body 1, and the first flow channel outer port 20, the second flow channel outer port 30 and the third flow channel outer port 40 are all communicated with the first inner cavity 10. The sliding sleeve 2 is slidably disposed in the first inner cavity 10. The driving component 3 is arranged in the switch main body 1 and is in transmission connection with the sliding sleeve 2, and the driving component 3 can drive the sliding sleeve 2 to move along the axial direction of the switch main body 1 so as to disconnect the communication between the second flow passage outer port 30 and/or the third flow passage outer port 40 and the first inner cavity 10.

The two-channel sliding sleeve switch provided by the embodiment, the first flow channel outer port 20 is used for communicating an oil pipe, the second flow channel outer port 30 and the third flow channel outer port 40 are used for communicating different oil layers, the sliding sleeve 2 is used for disconnecting the communication between the second flow channel outer port 30 and the first inner cavity 10, the oil layer communicated with the third flow channel outer port 40 can be subjected to single-layer mining, the sliding sleeve 2 is used for disconnecting the communication between the third flow channel outer port 40 and the first inner cavity 10, the oil layer communicated with the second flow channel outer port 30 can be subjected to single-layer mining, the single-layer mining of different oil layers can be realized, the problem that layers are strung due to different formation pressures during multi-layer mining is solved, when the oil yield of a certain oil layer is reduced for a period of time, the sliding sleeve 2 arranged in the first inner cavity 10 is driven to slide to replace the oil layer through the driving assembly 3, and the original oil layer is favorable for recovering the formation energy.

Alternatively, as shown in fig. 2 and 3, the driving assembly 3 includes a motor 31, an adjusting lever 32, a control lever 33 and a battery 34. The motor 31 is fixed to the switch body 1. The bottom end of the adjusting rod 32 is connected with the rotating shaft of the motor 31, and the adjusting rod 32 can rotate along with the rotating shaft of the motor 31. The top of pole 32 is adjusted to the control lever 33, the bottom spiro union of pole 33, the top of control lever 33 links firmly with the bottom of sliding sleeve 2, the control lever 33 can slide for switch main body 1 along the axial of switch main body 1, be provided with the first spacing face parallel with the axis of switch main body 1 on the lateral wall of control lever 33, be provided with the spacing face of second parallel with the axis of switch main body 1 on the switch main body 1, first spacing face and the spacing face cooperation of second can prevent that the control lever 33 rotates for switch main body 1 around the axis of switch main body 1. The motor 31 drives the adjusting rod 32 to rotate, at this time, the adjusting rod 32 and the control rod 33 rotate relatively, and the control rod 33 cannot rotate relatively with the switch main body 1, so that the control rod 33 can only slide relative to the switch main body 1 along the axial direction of the switch main body 1 to drive the sliding sleeve 2 to slide relative to the switch main body 1. The battery 34 is disposed in the switch main body 1, and the battery 34 is electrically connected to the motor 31 to supply power to the motor 31.

Optionally, as shown in fig. 1 to 3, a first flow channel 50 and a second flow channel 60 are disposed on the switch main body 1, a first flow channel inner port 70 and a second flow channel inner port 80 located below the first flow channel inner port 70 are disposed on a cavity wall of the first inner cavity 10, the first flow channel inner port 70 is communicated with the second flow channel outer port 30 through the first flow channel 50, so as to achieve communication between the second flow channel outer port 30 and the first inner cavity 10, and the second flow channel inner port 80 is communicated with the third flow channel outer port 40 through the second flow channel 60, so as to achieve communication between the third flow channel outer port 40 and the first inner cavity 10. Specifically, in the present embodiment, the plurality of second flow passage outer ports 30 are provided, the plurality of second flow passage outer ports 30 are arranged at intervals along the circumferential direction of the switch main body 1, and the first flow passage inner ports 70 and the first flow passages 50 are each arranged in one-to-one correspondence with the second flow passage outer ports 30.

Optionally, as shown in fig. 1 to 3, a second inner cavity 90 is provided in the sliding sleeve 2, a first communication hole 21 communicating with the first flow channel outer port 20 is provided on a top end face of the sliding sleeve 2, a second communication hole 22 communicating with the outside of the sliding sleeve 2 and the second inner cavity 90 is provided on a side wall of the sliding sleeve 2, the sliding sleeve 2 has a first working position and a second working position, when the sliding sleeve 2 is located at the first working position, the first flow channel inner port 70 communicates with the second communication hole 22, the second flow channel inner port 80 is covered by an outer side wall of the sliding sleeve 2, at this time, the second flow channel outer port 30 communicates with the first inner cavity 10, and the third flow channel outer port 40 is disconnected from the first inner cavity 10, so that production operation can be performed on an oil layer communicated with the second flow channel outer port 30, and the oil layer communicated with the third flow channel outer port 40 does not interfere with the production operation. When the sliding sleeve 2 is located at the second working position, the second flow channel inner opening 80 is communicated with the second communication hole 22, the outer side wall of the sliding sleeve 2 covers the first flow channel inner opening 70, the third flow channel outer opening 40 is communicated with the first inner cavity 10 at the moment, and the second flow channel outer opening 30 is disconnected with the first inner cavity 10, so that the oil layer communicated with the third flow channel outer opening 40 can be exploited, and the oil layer communicated with the second flow channel outer opening 30 cannot interfere with the exploitation operation.

Optionally, as shown in fig. 1 to 3, a third limiting surface 331 is provided on the control rod 33, a fourth limiting surface 11 and a fifth limiting surface 12 are provided on the switch main body 1, and the third limiting surface 331, the fourth limiting surface 11 and the fifth limiting surface 12 are all disposed at an included angle with the axis of the switch main body 1. When the sliding sleeve 2 is located at the first working position, the first limit surface 331 abuts against the fourth limit surface 11, and in the process that the motor 31 drives the sliding sleeve 2 to slide, the first working position is located by the third limit surface 331 abutting against the fourth limit surface 11. When the sliding sleeve 2 is located the second work position, the bottom end face of the sliding sleeve 2 abuts against the fifth limiting face 12, and in the process that the motor 31 drives the sliding sleeve 2 to slide, the bottom end face of the sliding sleeve 2 abuts against the fifth limiting face 12 to locate the second work position.

Optionally, as shown in fig. 1-3, the sliding sleeve 2 further has a third working position, when the sliding sleeve 2 is located at the third working position, the second communication hole 22 is located between the first flow passage internal opening 70 and the second flow passage internal opening 80, and the outer side wall of the sliding sleeve 2 covers the first flow passage internal opening 70 and the second flow passage internal opening 80. At this time, the second flow passage outer port 30 and the third flow passage outer port 40 are both disconnected from the first inner cavity 10, the third working position is used when a packer of the production string is set to separate an upper oil layer from a lower oil layer, the packer setting of the production string is conventional operation in oil production, and detailed description is omitted here.

Optionally, as shown in fig. 1 to 3, the driving assembly 3 further includes a bearing 35 disposed on the switch main body 1, and the bearing 35 is sleeved on the adjusting lever 32. The stable rotation of the adjusting rod 32 is ensured by the arrangement of the bearing 35. Specifically, in the present embodiment, the bearing 35 is a thrust ball bearing.

Optionally, as shown in fig. 1-3, the driving assembly 3 further includes a coupler 36, and a rotating shaft of the motor 31 is connected to the first end of the adjusting rod 32 through the coupler 36.

Optionally, as shown in fig. 1 to 3, the two-channel sliding sleeve switch provided in this embodiment further includes a control module 4 and a pressure sensor 5. The control module 4 is disposed in the switch main body 1 and used for controlling the driving assembly 3, and the battery 34 and the driving assembly 3 are electrically connected with the control module 4. The pressure sensor 5 is arranged in the switch main body 1 and used for monitoring the pressure in the first inner cavity 10, and the pressure sensor 5 is electrically connected with the control module 4. When an oil production layer needs to be adjusted, the ground central control room sends an instruction, the electromagnetic valve of the wellhead of the oil well is used for executing switching on or switching off, a pressure curve is generated in an oil pipe to form an instruction code, the pressure sensor 5 is used for monitoring pressure data in the first inner cavity 10 and transmitting the pressure data to the control module 4, the control module 4 receives the pressure data to obtain the instruction code, and the driving assembly 3 is controlled to operate according to the instruction code. Specifically, in this embodiment, the control module 4 is a circuit board, two control signal pressure curves are prestored in the control module 4, when an oil production layer needs to be adjusted, the ground central control room sends an instruction, the electromagnetic valve at the wellhead of the oil well is turned on or off, a pressure curve is generated in an oil pipe to form an instruction code, the pressure sensor 5 transmits the monitored pressure data in the first inner cavity 10 to the control module 4, and the control module 4 judges that the pressure data monitored by the pressure sensor 5 is the same as the prestored control signal pressure curve, that is, the control motor 31 rotates to drive the sliding sleeve 2 to slide, and the two control signal pressure curves respectively correspond to the sliding sleeve 2 and are converted from the first working position to the second working position and from the second working position to the first working position, so as to realize wireless control over the two-channel sliding sleeve switch.

Alternatively, as shown in fig. 1 to 3, an apparatus chamber 100 is provided in the switch main body 1, and the motor 31, the battery 34, the bearing 35, the pressure sensor 5, and the control module 4 are all provided in the apparatus chamber 100.

Optionally, as shown in fig. 1-3, the switch body 1 includes a control section 13. A through hole which penetrates through the control section 13 along the circumferential direction of the switch main body 1 is arranged in the control section 13, and an internal thread is arranged on the hole wall at the top end of the through hole of the control section 13 and used for connecting the two-channel sliding sleeve switch with other pipe sections of the oil well pipe column. The sliding sleeve 2 is slidably disposed in the through hole of the control section 13, and the first flow channel outer opening 20, the first flow channel inner opening 70, the first flow channel 50, the second flow channel outer opening 30, and the second flow channel inner opening 80 are all disposed on the control section 13. Wherein the first flow passage outer port 20 is an orifice of the through hole of the control section 13. The first flow passage 50 is disposed perpendicular to the axis of the through-hole. Grooves are formed in the cavity walls on the two sides of the first flow channel inner opening 70 and the cavity walls on the two sides of the second flow channel inner opening 80, and sealing rings are arranged in the grooves, so that the sliding sleeve 2 is connected with the control section 13 in a sealing mode.

Optionally, as shown in fig. 1-3, the switch body 1 further comprises a connecting section 14. The top of linkage segment 14 and the bottom butt of control section 13, first inner chamber 10 is enclosed by the through-hole of control section 13 and the top terminal surface of linkage segment 14 and establishes and form. The second flow passage 60 extends from a second flow passage internal opening 80 in the control section 13 to the connecting section 14 and through the connecting section 14. The connecting section 14 is provided with a third communication hole 141 penetrating the connecting section 14, the control rod 33 is arranged in the third communication hole 141 in a penetrating manner, the top end of the control rod is exposed in the first inner cavity 10, and the control rod 33 and the hole wall of the third communication hole 141 are sealed through a sealing ring. The pressure sensor 5 is fixedly arranged at the bottom end of the connecting section 14, a fourth communication hole 143 is further formed in the connecting section 14, and the fourth communication hole 143 is communicated to the first inner cavity 10 from the installation position of the pressure sensor 5, so that the pressure sensor 5 can detect the pressure in the first inner cavity 10.

Optionally, as shown in fig. 1 to 3, the control rod 33 includes a limiting section 332 and a sealing section 333, a bottom end of the limiting section 332 is screwed with the adjusting rod 32, a top end of the limiting section 332 is fixedly connected with a bottom end of the sealing section 333, and a top end of the sealing section 333 is inserted into an end plate at the bottom end of the sliding sleeve 2 and is fixedly connected with the sliding sleeve 2 through a bolt. Spacing 332 is the hexagon prism, and six sides of the hexagon prism are first spacing face, and third intercommunicating pore 141 includes the hexagon hole section that matches with spacing 332, and six faces of hexagon hole section are the spacing face of second and do, thereby the spacing face cooperation of the second of first spacing face on spacing 332 and hexagon hole section prevents that control lever 33 rotates for switch main body 1. The sealing section 333 is a cylinder, the third communication hole 141 includes a cylindrical hole section matched with the sealing section 333, a groove is formed in the hole wall of the cylindrical hole section, and a sealing ring is arranged in the groove to realize the sealing connection between the control rod 33 and the switch main body 1.

Optionally, as shown in fig. 1-3, the switch body 1 further comprises a connection tube 15. The top end of the connection tube 15 is sleeved at the bottom end of the control end, and the bottom end of the connection tube 15 is sleeved at the top end of the connection section 14. Specifically, in the present embodiment, the connecting pipe 15 is a union, and the specific structure and usage of the union are common knowledge in the art and will not be described in detail here.

Optionally, as shown in fig. 1-3, the switch body 1 further comprises a drive section 16. The drive section 16 includes an outer sleeve 161, an inner sleeve 162, and a battery carrier 163. The top end of the outer sleeve 161 is sleeved on the outer side wall of the bottom end of the connecting section 14, and the outer sleeve 161 is in threaded connection with the connecting section 14 and sealed by a sealing ring. The bottom end of the connecting section 14 is provided with a tubular connecting portion 142, the tubular connecting portion 142 surrounds the third communication hole 141, the top end of the inner sleeve 162 is screwed on the tubular connecting portion 142, the inner sleeve 162 and the tubular connecting portion 142 are sealed by a sealing ring, and the bearing 35 and the motor 31 are both arranged in the inner sleeve 162. The battery holder 163 is disposed at the bottom end of the inner sleeve 162, the battery holder 163 is connected to the inner sleeve 162 via a sealing ring, and the battery 34 is disposed in the battery holder 163. The gap between the outer sleeve 161 and the inner sleeve 162 is a portion of the second flow passage 60. The device chamber 100 in the switch body 1 is enclosed by the tubular connecting portion 142, the inner case 162 and the battery holder 163.

Optionally, as shown in fig. 1-3, the switch body 1 further comprises a tab 17. The top end of the joint 17 is screwed with the top end of the outer sleeve 161, and the joint is sealed by a seal ring. A fifth communication hole penetrating the joint is provided in the joint 17, and a gap between the outer sleeve 161 and the inner sleeve 162 communicates with the fifth communication hole, which is also a part of the second flow channel 60. The outer side wall of the bottom end of the nipple 17 is provided with an external thread for connection with other pipe sections of the oil well string.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. A two-channel sliding sleeve switch, comprising:

the switch comprises a switch main body (1) and a switch body, wherein the switch main body (1) is provided with a first inner cavity (10) extending along the axial direction of the switch main body (1), a first flow passage outer port (20) used for being communicated with an oil pipe is arranged on the end surface of the top end of the switch main body (1), a second flow passage outer port (30) is arranged on the outer side surface of the top end of the switch main body (1), a third flow passage outer port (40) is arranged on the end surface of the bottom end of the switch main body (1), and the first flow passage outer port (20), the second flow passage outer port (30) and the third flow passage outer port (40) are all communicated with the first inner cavity (10);

a sliding sleeve (2) which is arranged in the first inner cavity (10) in a sliding manner;

the driving assembly (3) is arranged in the switch main body (1) and is in transmission connection with the sliding sleeve (2), and the driving assembly (3) can drive the sliding sleeve (2) to move along the axial direction of the switch main body (1) so as to disconnect the communication between the second flow channel outer port (30) and/or the third flow channel outer port (40) and the first inner cavity (10).

2. The two-way sliding sleeve switch according to claim 1, wherein the drive assembly (3) comprises:

a motor (31) fixedly arranged on the switch main body (1);

the bottom end of the adjusting rod (32) is connected with the rotating shaft of the motor (31), and the adjusting rod (32) can rotate along with the rotating shaft of the motor (31);

the top end of the adjusting rod (32) is in threaded connection with the bottom end of the control rod (33), the top end of the control rod (33) is fixedly connected with the bottom end of the sliding sleeve (2), the control rod (33) can slide relative to the switch main body (1) along the axial direction of the switch main body (1), a first limiting surface is arranged on the outer side wall of the control rod (33), a second limiting surface is arranged on the switch main body (1), the first limiting surface and the second limiting surface are both parallel to the axis of the switch main body (1), and the first limiting surface and the second limiting surface are matched to prevent the control rod (33) from rotating relative to the switch main body (1) around the axis of the switch main body (1);

a battery (34) disposed within the switch body (1), the battery (34) being electrically connected to the motor (31).

3. The two-channel sliding sleeve switch according to claim 2, wherein a first flow channel (50) and a second flow channel (60) are arranged on the switch main body (1), a first flow channel inner port (70) and a second flow channel inner port (80) located below the first flow channel inner port (70) are arranged on the wall of the first inner cavity (10), the first flow channel inner port (70) is communicated with the second flow channel outer port (30) through the first flow channel (50), and the second flow channel inner port (80) is communicated with the third flow channel outer port (40) through the second flow channel (60).

4. The two-channel sliding sleeve switch according to claim 3, wherein a second inner cavity (90) is provided in the sliding sleeve (2), a first communication hole (21) communicating with the first channel outer opening (20) is provided on the top end surface of the sliding sleeve (2), a second communication hole (22) communicating the outside of the sliding sleeve (2) with the second inner cavity (90) is provided on the side wall of the sliding sleeve (2), the sliding sleeve (2) has a first working position and a second working position, when the sliding sleeve (2) is located at the first working position, the first channel inner opening (70) communicates with the second communication hole (22), the outer side wall of the sliding sleeve (2) covers the second channel inner opening (80), when the sliding sleeve (2) is located at the second working position, the second channel inner opening (80) communicates with the second communication hole (22), the outer side wall of the sliding sleeve (2) covers the first flow channel inner opening (70).

5. The two-channel sliding sleeve switch according to claim 4, wherein a third limiting surface (331) is provided on the control rod (33), a fourth limiting surface (11) and a fifth limiting surface (12) are provided on the switch main body (1), the third limiting surface (331), the fourth limiting surface (11) and the fifth limiting surface (12) are all arranged at an included angle with the axis of the switch main body (1), when the sliding sleeve (2) is located at the first working position, the third limiting surface (331) abuts against the fourth limiting surface (11), and when the sliding sleeve (2) is located at the second working position, the bottom end surface of the sliding sleeve (2) abuts against the fifth limiting surface (12).

6. The two-channel sliding sleeve switch according to claim 5, wherein the sliding sleeve (2) further has a third working position, when the sliding sleeve (2) is located at the third working position, the second communication hole (22) is located between the first flow channel inner opening (70) and the second flow channel inner opening (80), and the outer side wall of the sliding sleeve (2) covers the first flow channel inner opening (70) and the second flow channel inner opening (80).

7. The two-way sliding sleeve switch according to claim 2, wherein the driving assembly (3) further comprises a bearing (35) disposed on the switch body (1), and the bearing (35) is sleeved on the adjusting lever (32).

8. The two-way sliding sleeve switch according to claim 7, wherein the driving assembly (3) further comprises a coupler (36), and a rotating shaft of the motor (31) is connected with the first end of the adjusting rod (32) through the coupler (36).

9. The two-channel sliding sleeve switch according to any one of claims 1-8, further comprising:

the control module (4) is arranged in the switch main body (1) and used for controlling the driving component (3), and the control module (4) is electrically connected with the driving component (3);

a pressure sensor (5) disposed within the switch body (1) for monitoring pressure in the first interior chamber (10), the pressure sensor (5) being electrically connected with the control module (4).

10. The two-channel sliding sleeve switch according to claim 9, wherein an equipment cavity (100) is provided in the switch body (1), and the pressure sensor (5) and the control module (4) are both provided in the equipment cavity (100).

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