Valve plate type electronic sliding sleeve

Abstract

The utility model discloses a valve plate type electronic sliding sleeve. The valve plate type electronic sliding sleeve comprises a sliding sleeve part, a driving piece and a magnetic ring sensor, the sliding sleeve part comprises an inner sliding sleeve, a valve plate, a driving sleeve and a sensor, the sensor is installed on one side of the inner wall of the inner sliding sleeve, and the valve plate and the driving sleeve are arranged in the inner sliding sleeve; the driving part comprises a gear motor and a sealing rod, the gear motor and the sealing rod are both arranged in the inner sliding sleeve, and the gear motor is used for driving the sealing rod to move transversely and enabling liquid to enter the driving sleeve; the magnetic ring inductor is arranged on the outer side of the inner sliding sleeve. According to the utility model, the magnetic ring inductor, the valve plate and the sensor are arranged, so that when the magnetic ring inductor is put into different levels of the inner sliding sleeve, the valve plate and the inner sliding sleeve do different slippage and opening, and therefore, full-bore non-level-difference infinite layering is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of downhole tools, and particularly relates to a valve plate type electronic sliding sleeve. Background Technique

[0002] Completion technology is one of the key technologies for oil and gas exploitation. Completion technologies include perforating completion method, open-hole completion method, liner completion method, etc., all of which establish a communication channel between the reservoir and the wellbore to enable oil and gas to flow out of the underground rock formation smoothly and be transported to the ground. By adopting the above technologies, both the crude oil production can be increased and the environmental pollution can be reduced.

[0003] This technology involves stratifying the formation as much as possible and large-diameter completion process technology. Currently, conventional large-diameter sliding sleeves have structural methods such as ball-throwing counting type, bamboo tube clamping type, soluble plug-throwing type, etc. to achieve large diameter, but these large diameters all have certain risks. For example, in the method of counting by throwing plugs or balls, inaccurate counting often occurs in market applications, and effective seating cannot be achieved, resulting in a certain layer not being opened or missed, leading to counting chaos. In fact, the structure of this type of sliding sleeve is limited by length and cannot truly achieve infinite-level stratification. For the bamboo tube clamping type structure, performance problems are frequent, elastic anchoring is unreliable, and the pressure-bearing strength is insufficient. For the soluble plug type large-diameter on the market, the application effect has always been unsatisfactory, and the dissolution rate cannot ensure safe fracturing. The utility model patent with the publication number CN202402020U discloses and authorizes an unlimited-layer electric control fracturing sliding sleeve, which constructs the basic structure of the sliding sleeve by setting an outer cylinder sleeve, an inner cylinder sleeve and a signal ball; specifically, when the signal ball moves in the sliding sleeve, it emits a specific IP signal and is captured by the antenna of the solenoid valve, and then after the IP address comparison and confirmation are consistent, the solenoid valve is turned on and the pressure relief hole is opened to complete the subsequent sealing action.

[0004] However, when the above unlimited-layer electric control fracturing sliding sleeve is specifically used, its structure will be affected by the changes in the shape, length and quantity of the profiled grooves, thus changing the structure and length of the sliding sleeves at different layers, and due to the limitation of the tool length, true infinite-level stratification cannot be achieved. That is, the effect of full-bore stepless differential infinite stratification cannot be effectively realized. Summary of the Utility Model

[0005] The purpose of the utility model is to overcome the above technical deficiencies and propose a valve plate type electronic sliding sleeve to solve the technical problem that full-bore stepless differential infinite stratification cannot be effectively realized in the prior art.

[0006] To achieve the above technical purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a valve plate type electronic sleeve, comprising a sleeve portion, a driving member and a magnetic ring sensor; the sleeve portion comprises an inner sleeve, a valve plate, a driving sleeve and a sensor, the sensor is installed on one side of the inner wall of the inner sleeve, the valve plate and the driving sleeve are arranged in the inner sleeve; the driving member comprises a reduction motor and a sealing rod, the reduction motor and the sealing rod are both arranged in the inner sleeve, the reduction motor is used to drive the sealing rod to move laterally and allow liquid to enter the driving sleeve; the magnetic ring sensor is arranged on the outside of the inner sleeve.

[0008] In some embodiments, the sliding sleeve portion further includes an upper joint, one end of which is sleeved outside the inner sliding sleeve.

[0009] In some embodiments, the sliding sleeve portion further includes an intermediate joint and a lower joint, and two ends of the intermediate joint are respectively threadedly connected to the upper joint and the lower joint.

[0010] In some embodiments, an O-ring is provided between the middle joint and the lower joint.

[0011] In some embodiments, the O-rings are provided at least in pairs.

[0012] In some embodiments, the reduction motor is arranged on the inner wall of the lower joint, the sealing rod is arranged on the inner wall of the middle joint, the output end of the reduction motor is fixedly connected with a torque sleeve, the side of the torque sleeve facing away from the reduction motor abuts against one end of the sealing rod, and when the torque sleeve rotates, one end of the sealing rod falls into the torque sleeve.

[0013] In some embodiments, the magnetic ring sensor includes a joint portion, a guide shoe, and a magnet. The joint portion is detachably connected to the guide shoe. The guide shoe is located on a side close to the inner sleeve, and the magnet is disposed inside the guide shoe.

[0014] In some embodiments, the joint portion is threadedly connected to the guide shoe.

[0015] In some embodiments, the S pole of the magnet faces outwards and the N pole of the magnet faces inwards.

[0016] In some embodiments, a driver circuit board is also included, and the driver circuit board is electrically connected to the reduction motor.

[0017] Compared with the prior art, a valve plate type electronic sliding sleeve provided by the utility model constructs a structural basis for stepless differential and unlimited layers by setting an inner sliding sleeve, a valve plate, a driving sleeve, a sensor and a magnetic ring inductor; specifically, the magnetic ring inductor is put into the inner sliding sleeve, and after the sensor senses the magnetic field signal emitted by the magnetic ring inductor, it transmits the information to the reduction motor and drives the reduction motor to drive the sealing rod to move horizontally and lose the seal, so that the liquid in the inner sliding sleeve flows into the driving sleeve and finally makes the valve plate open to form an isolation layer and implement fracturing. Since the magnetic ring inductor in the above structure does not have a direct mechanical connection with the sliding sleeve during the placement and signal transmission process, and there is no movement of the main mechanism, there is no change in the shape, length and quantity of the type groove, and thus the inner and outer diameters and length of the sliding sleeve part will not be changed; in addition, through the combined design of the magnetic ring inductor and the sensor, it can achieve layered fracturing through the magnetic field signal, that is, it can more smoothly achieve the effect of full-bore stepless differential and unlimited layers. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. is a partial cross-section of a valve plate type electronic sliding sleeve provided by an embodiment of the utility model Figure 1 ;

[0019] Figure 2 FIG. is a partial cross-section of a valve plate type electronic sliding sleeve provided by an embodiment of the utility model Figure 2 .

[0020] DESCRIPTION OF THE REFERENCE NUMERALS:

[0021] 100, sliding sleeve part; 110, inner sliding sleeve; 120, valve plate; 130, driving sleeve; 140, sensor; 150, upper joint; 160, intermediate joint; 170, lower joint; 180, O-ring seal; 200, driving member; 210, reduction motor; 220, sealing rod; 230, torque sleeve; 300, magnetic ring inductor; 310, joint part; 320, guide shoe; 330, magnet; 400, driver circuit board. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to make the purpose, technical solutions and advantages of the utility model clearer, the following further describes the utility model in detail with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.

[0023] In order to solve the technical problem that effective full-bore stepless differential and unlimited layers cannot be achieved, the utility model provides a valve plate type electronic sliding sleeve, which can achieve effective full-bore stepless differential and unlimited layers.

[0024] It should be noted that the valve plate type electronic sliding sleeve described in the present utility model is used for, but not limited to, downhole tools, etc. For the convenience of description, in the present utility model, only a valve plate type electronic sliding sleeve applied to downhole tool equipment is taken as an example for description, and the principle of a valve plate type electronic sliding sleeve applied to other types of equipment is substantially the same as that applied to downhole tool equipment, and will not be elaborated one by one here.

[0025] Please refer to Figure 1 - Figure 2 , Figure 1 FIG. is a schematic structural diagram of a valve plate type electronic sliding sleeve in an embodiment of the present utility model. A valve plate type electronic sliding sleeve includes a sliding sleeve part 100, a driving member 200, and a magnetic ring inductor 300; the sliding sleeve part 100 includes an inner sliding sleeve 110, a valve plate 120, a driving sleeve 130, and a sensor 140. The sensor 140 is installed on one side of the inner wall of the inner sliding sleeve 110, and the valve plate 120 is arranged on one side inside the inner sliding sleeve 110; the driving member 200 includes a reduction motor 210 and a sealing rod 220. The reduction motor 210 and the sealing rod 220 are both arranged inside the inner sliding sleeve 110, and the reduction motor 210 is used to drive the sealing rod 220 to move horizontally; the magnetic ring inductor 300 is arranged outside the inner sliding sleeve 110.

[0026] In this embodiment, a structure foundation of stepless difference and unlimited layers is constructed by setting the inner sliding sleeve 110, the valve plate 120, the sensor 140, and the magnetic ring inductor 300; specifically, the magnetic ring inductor 300 is put into the inner sliding sleeve 110. After the sensor 140 senses the magnetic field signal emitted by the magnetic ring inductor 300, it transmits the information to the reduction motor 210 and drives the reduction motor 210 to drive the sealing rod 220 to move horizontally and unseal (specifically, the unsealing of the sealing rod 220 allows liquid to enter Figure 2 the cavity of the driving sleeve 130 inside), thereby enabling the liquid located in the sliding sleeve (i.e., the inner sliding sleeve 110) to flow and finally opening the valve plate 120 to form an isolation layer and perform fracturing. Since the magnetic ring inductor 300 in the above structure does not have a direct mechanical connection with the sliding sleeve during the placement and signal transmission process, and there is no movement of the main body mechanism, there is no change in the shape, length, and number of the type grooves, and thus the inner and outer diameters and the length of the sliding sleeve part 100 will not be changed; in addition, through the combined design of the magnetic ring inductor 300 and the sensor 140, it can achieve layered fracturing through magnetic field signals, that is, it can more smoothly achieve the effect of full-bore stepless difference and infinite layering.

[0027] In one of the embodiments, please refer to Figure 2 , the sliding sleeve part 100 further includes an upper joint 150, and one end of the upper joint 150 is sleeved outside the inner sliding sleeve 110.

[0028] In one of the embodiments, please refer to Figure 1, the sliding sleeve part 100 further includes an intermediate joint 160 and a lower joint 170. The two ends of the intermediate joint 160 are respectively threadedly connected to the upper joint 150 and the lower joint 170.

[0029] In one embodiment, please refer to Figure 1 , an O-ring seal 180 is provided between the intermediate joint 160 and the lower joint 170.

[0030] In this embodiment, the O-ring seal 180 facilitates ensuring the sealing effect.

[0031] In one embodiment, please refer to Figure 1 , the O-ring seals 180 are provided at least in pairs.

[0032] In this embodiment, the O-ring seals 180 being provided at least in pairs helps to provide a double-sealing structure and a better sealing effect.

[0033] In one embodiment, please refer to Figure 1 , a reduction motor 210 is provided on the inner wall of the lower joint 170, a sealing rod 220 is provided on the inner wall of the intermediate joint 160, an output end of the reduction motor 210 is fixedly connected with a torque sleeve 230, one side of the torque sleeve 230 facing away from the reduction motor 210 abuts against one end of the sealing rod 220, and when the torque sleeve 230 rotates, one end of the sealing rod 220 falls into the torque sleeve 230.

[0034] In this embodiment, when one end of the sealing rod 220 falls into the torque sleeve 230, the other end of the sealing rod 220 will have a lateral looseness (specifically, the sealing of the sealing rod 220 fails and liquid enters Figure 2 the cavity of the drive sleeve 130. It should be noted that the inside of the drive sleeve 130 is hollow), and finally under the action of hydrostatic pressure, the inner sliding sleeve 110 moves downward. While the C-ring is self-locked, the sliding sleeve side through-hole is opened. At the same time, under the elastic action of the torsion spring, the valve plate 120 opens to form an isolation layer and then fracturing is implemented. It should be noted that the C-ring, the side through-hole, and the torsion spring are all common parts and are not shown specifically. In addition, in order to specifically judge the state of the upper-level switch, a secondary inductor can be inserted. When the secondary inductor falls on the valve plate 120 of the first-stage stratification, under the action of hydraulic pressure, the secondary inductor presses against the valve plate 120 to block the sliding sleeve (i.e., the inner sliding sleeve 110). At this time, an obvious throttling state appears in the pipeline, and the state of the upper-level switch is judged by whether throttling occurs.

[0035] In one embodiment, please refer to Figure 1 , the magnetic ring inductor 300 includes a connection head 310, a guide shoe 320, and a magnet 330. The connection head 310 is detachably connected to the guide shoe 320. The guide shoe 320 is located on the side close to the inner sliding sleeve 110, and the magnet 330 is provided in the guide shoe 320.

[0036] In this embodiment, the arrangement of the guide shoe 320 enables the body of the magnetic ring inductor 300 to be placed more smoothly, effectively ensuring the realization of full bore diameter.

[0037] In one embodiment, please refer to Figure 1 , the joint head 310 is threadedly connected to the guide shoe 320.

[0038] In this embodiment, the threaded connection between the joint head 310 and the guide shoe 320 facilitates the maintenance of the guide shoe 320.

[0039] In one embodiment, please refer to Figure 1 , the S pole of the magnet 330 faces outward and the N pole of the magnet 330 faces inward.

[0040] In one embodiment, please refer to Figure 1 , it further includes a driver circuit board 400, and the driver circuit board 400 is electrically connected to the reduction motor 210.

[0041] In this embodiment, after the magnetic ring inductor 300 transmits the magnetic field signal to the driver circuit board 400, the driver circuit board 400 can send an instruction to the reduction motor 210 after rapid logic signal processing. It should be noted that if the driver circuit board 400 is not provided, this component can also be integrated on the reduction motor 210.

[0042] To better understand the present utility model, the technical solution of the present utility model will be described in detail below in conjunction with Figures 1 to 2 :

[0043] First, the magnetic ring inductor 300 is inserted into the inner slip sleeve 110 via the upper joint 150; then, as the magnetic ring inductor 300 continues to move downward, when the sensor 140 receives the magnetic field signal, it will send an instruction to the reduction motor 210 via the driver circuit board 400; at this time, after the reduction motor 210 drives the torque sleeve 230 to rotate, one side of the top end of the sealing rod 220 falls into the torque sleeve 230, and the other end of the sealing rod 220 loses its seal, enabling the liquid to enter the drive sleeve 130 via the inner slip sleeve 110; then, under the action of hydrostatic pressure, the inner slip sleeve 110 moves downward, and finally the valve plate 120 is opened to form an isolation layer and perform fracturing; finally, by inserting a secondary inductor, the state of the upper switch can be judged. Due to the combined design of the magnetic ring inductor 300, the sensor 140 and the valve plate 120 in the above structure, the movement process of the magnetic ring inductor 300 is smoother, without changing the inner diameter and specific structure of the inner slip sleeve 110, and the layered fracturing can be realized more effectively by means of the transmission of the magnetic field signal and the command, and the effect of full bore diameter stepless differential infinite layering can be achieved more effectively.

[0044] The above specific embodiments of the present utility model do not constitute a limitation to the protection scope of the present utility model. Any other corresponding changes and deformations made according to the technical concept of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. A valve plate type electronic sleeve, characterized in that: include: A sleeve portion, the sleeve portion comprising an inner sleeve, a valve plate, a drive sleeve and a sensor, the sensor being mounted on one side of an inner wall of the inner sleeve, the valve plate and the drive sleeve being arranged in the inner sleeve; A driving member, the driving member comprising a reduction motor and a sealing rod, the reduction motor and the sealing rod are both arranged in the inner sliding sleeve, the reduction motor is used to drive the sealing rod to move laterally and allow the liquid to enter the driving sleeve; as well as A magnetic ring sensor is arranged on the outer side of the inner sliding sleeve.

2. The valve plate type electronic sleeve according to claim 1, characterized in that: The sliding sleeve portion further comprises an upper joint, one end of which is sleeved outside the inner sliding sleeve.

3. The valve plate type electronic sleeve according to claim 2, characterized in that: The sliding sleeve portion further comprises an intermediate joint and a lower joint, and two ends of the intermediate joint are respectively threadedly connected to the upper joint and the lower joint.

4. The valve plate type electronic sleeve according to claim 3, characterized in that: An O-shaped sealing ring is arranged between the middle joint and the lower joint.

5. The valve plate type electronic sleeve according to claim 4, characterized in that: The O-rings are arranged at least in pairs.

6. The valve plate type electronic sleeve according to claim 3, characterized in that: The reduction motor is arranged on the inner wall of the lower joint, the sealing rod is arranged on the inner wall of the middle joint, the output end of the reduction motor is fixedly connected with a torque sleeve, the side of the torque sleeve facing away from the reduction motor abuts against one end of the sealing rod, and when the torque sleeve rotates, one end of the sealing rod falls into the torque sleeve.

7. The valve plate type electronic sleeve according to claim 1, characterized in that: The magnetic ring sensor comprises a joint part, a guide shoe and a magnet. The joint part is detachably connected to the guide shoe. The guide shoe is located on a side close to the inner sleeve, and the magnet is arranged in the guide shoe.

8. The valve plate type electronic sleeve according to claim 7, characterized in that: The joint portion is threadedly connected to the guide shoe.

9. The valve plate type electronic sleeve according to claim 7, characterized in that: The S-pole of the magnet faces outwards, and the N-pole of the magnet faces inwards.

10. The valve plate type electronic sleeve according to claim 1, characterized in that: It also includes a driver circuit board, which is electrically connected to the reduction motor.

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