Recyclable pumping seals

Abstract

The present invention relates to the field of well logging engineering technology, and is a recyclable pumping sealing device, comprising a joint assembly, a detection assembly, and a sealing assembly that are sequentially installed from top to bottom; the detection assembly can obtain the position of the detection assembly downhole according to the change in the material of the adjacent casing and casing couplings in the well. The present invention has a reasonable and compact structure and is easy to use. It provides pumping force through fracturing fluid to achieve horizontal well sealing, meeting the needs of fracturing work, pumping the sealing assembly to the target position downhole, and then sealing the target position after the fracturing fluid acts on the sealing assembly. After the seal is intact, the drawworks lifts the joint assembly to separate it from the sealing assembly, thereby recovering the joint assembly and the detection assembly. The detection assembly can measure the number of casing collars used to connect two adjacent casings in the well, thereby determining the depth of the detection assembly lowered into the oil well, making it easy to detect the position of the detection assembly downhole.

Description

Technical Field

[0001] The invention relates to the technical field of well logging engineering, and relates to a recyclable pumping sealing device. Background Art

[0002] A typical wellbore model in unconventional oil and gas production involves drilling a long horizontal section to the desired vertical depth, then running casing and securing it with cement. During the completion phase, perforation is primarily used to establish a channel to the reservoir. Fracturing is then used to open the channel and increase the contact area between the channel and the reservoir to increase production. A more common technique is "bridge-plug-perforate." This involves setting a plug to isolate a specific area, then perforating the area at a designed location to stimulate the reservoir. At the completion of the stimulation, the plug is typically worn away, allowing the wellbore to flow back and resume production.

[0003] During stimulation, it is valuable to measure the amount of fluid and sand injected into each perforation cluster within each stage during the fracturing process. Several well-known measurement methods can determine the amount of fluid injected into each cluster, but until now, due to deployment difficulties, no method has been able to monitor the amount of fluid injected into each cluster in real time during stimulation.

[0004] During the fracturing construction process, it is necessary to maintain the communication and connection between the downhole sealing equipment and the surface equipment to achieve bridge plug sealing. In fact, the solid components in the liquid used for fracturing may be deposited on the top of the sealing equipment, hindering the recovery of the device, which will cause downhole complexity and increase the difficulty of the entire construction. Summary of the Invention

[0005] The present invention provides a recyclable pumping sealing device, which overcomes the shortcomings of the above-mentioned existing technologies. It can effectively solve the problem that during the existing fracturing construction process, it is necessary to maintain communication and connection between the downhole sealing equipment and the ground equipment, and the solid components in the liquid used for fracturing may be deposited on the top of the sealing device, hindering the recovery of the device.

[0006] The technical solution of the present invention is achieved by the following measures: a recyclable pumping sealing device, comprising a joint assembly, a detection assembly and a setting assembly which are sequentially installed together from top to bottom;

[0007] The detection component can obtain the position of the detection component in the well according to the change of the material of the adjacent casing and casing collar in the well;

[0008] The joint assembly can connect the detection assembly and the ground equipment together;

[0009] The sealing assembly can seal the target position and can be separated from the detection assembly during recovery and remain in the well to maintain the sealing state of the target position. At the same time, after the fracturing fluid acts on the sealing assembly, the sealing assembly can drive the detection assembly and the joint assembly to move in the horizontal well.

[0010] The following are further optimizations and / or improvements to the above technical solutions:

[0011] The above-mentioned sealing assembly may include a ball seat, an articulated cylinder, a thrust cylinder, a valve core mechanism, a center shaft, a sealing ball, a straightening tail seat and a leather cup. The upper end of the ball seat and the lower end of the detection assembly are sealed and fixed together. The inner side of the lower part of the ball seat is provided with a hinge groove opening downward. The upper end of the articulated cylinder is fixed with an articulated ball hingedly installed in the articulated groove. The inner side of the lower end of the articulated cylinder and the outer side of the upper end of the thrust cylinder are fixed together. A number of liquid inlet holes connected inside and outside are evenly distributed along the circumference on the outer side of the upper part of the articulated cylinder corresponding to the position above the thrust cylinder. The inner side of the thrust cylinder is provided with an upper The flow passage passes through the bottom, and the upper end of the thrust cylinder is provided with a valve core mechanism that can open and close the flow passage. A hollow central shaft is sleeved on the inner side of the lower part of the flow passage. A second elastic reset member is provided between the upper part of the central shaft and the lower part of the thrust cylinder. The lower end of the central shaft and the upper part of the setting ball are fixedly installed together. A number of liquid outlet holes that are connected inside and outside are evenly distributed along the circumference at intervals corresponding to the outer side of the lower part of the central shaft above the setting ball. A straightening tailstock is sleeved on the outer side of the lower part of the central shaft corresponding to the position above the liquid outlet hole. The upper end of the straightening tailstock and the lower end of the thrust cylinder are installed together A guide ring platform is fixed on the outer side of the lower part of the central shaft corresponding to the position below the thrust cylinder. The outer side of the lower part of the guide ring platform is a conical outer guide surface with a larger upper part and a smaller lower part. A guide ring groove is provided on the outer side of the upper part of the straightening tailstock corresponding to the position of the guide ring platform. Several radially penetrating inner guide mounting holes are evenly distributed along the circumference in the middle of the guide ring groove. A retaining ring is fixedly installed in the guide ring groove. A radially penetrating outer guide mounting hole is provided on the outer side of the retaining ring corresponding to the position of each inner guide mounting hole. A wedge block is slidably installed in each inner guide mounting hole. Each wedge block The outside is fixed with a guide column passing through the outer guide mounting hole at the corresponding position. The inner side of the upper part of the wedge block is a conical surface matching the outer guide surface. A first elastic reset part is provided between the outer side of the wedge block and the inner side of the buckle, which can make the inner side of the wedge block and the outer side of the guide ring platform abut against each other. A lower pressure cover is installed on the outer side of the buckle corresponding to the upper side of the guide column, and an upper pressure cover is installed on the outer side of the upper part of the thrust cylinder corresponding to the position below the hinge cylinder. Several annular partitions are provided between the upper and lower pressure covers, and leather cups are installed on the upper and lower sides of each partition.

[0012] The above-mentioned flow passage may include a first straight hole, a second straight hole, a third straight hole, a fourth straight hole and a fifth straight hole that are connected in sequence from top to bottom. The inner diameters of the first straight hole, the second straight hole and the third straight hole decrease in sequence, and the inner diameters of the third straight hole, the fourth straight hole and the fifth straight hole increase in sequence. A plurality of slots opening inward are evenly spaced on the step surface between the second straight hole and the third straight hole. The valve core mechanism includes a valve cover, a valve stem and a third elastic return member. The outer side of the lower part of the valve cover is fixedly installed in the first straight hole. A switch hole that passes through the upper end of the valve cover is provided in the center. A T-shaped valve stem with a larger upper portion and a smaller lower portion is mounted on the inner side of the valve cover, and the outer side of the lower portion of the valve stem is mounted in the third straight hole. A third elastic reset member is provided between the step surface between the second straight hole and the third straight hole and the outer side of the upper portion of the valve stem, which can enable the upper end of the valve stem to be in sealing contact with the inner side of the upper portion of the valve cover. A first step surface is provided on the inner side of the upper portion of the straightening tail seat corresponding to the upper end position of the guide ring platform, and a limiting ring platform is fixed on the outer side of the upper portion of the center axis corresponding to the position of the first step surface. The second elastic reset member is installed between the step surface between the fourth straight hole and the fifth straight hole and the upper end of the limiting ring platform.

[0013] The outer side of the lower part of the straightening tailstock corresponding to the position below the above-mentioned buckling ring can be evenly distributed with several radially penetrating check holes along the circumference, and a tightening screw is threaded in each check hole. A check pin is installed in the check hole corresponding to the position between the tightening screw and the outer side of the center shaft, and a fourth elastic reset part is provided between the tightening screw and the check pin to make the end of the check pin abut against the outer side of the center shaft. A check ring groove is provided on the outer side of the center shaft between the check hole and the lower end of the straightening tailstock.

[0014] A first filter screw is detachably fixedly installed in the above-mentioned liquid inlet hole, a fixing groove with an opening facing upward is provided on the upper part of the sealing ball, the outer side of the lower part of the central shaft is fixedly installed in the fixing groove, a second step surface is provided on the inner side of the lower part of the central shaft corresponding to the position above the liquid outlet hole, a second filter screw is fixedly installed on the inner side of the lower part of the central shaft, the upper end of which contacts the second step surface, and a filtering channel connected to the inner side of the central shaft is provided on the outer side of the lower part of the second filter screw corresponding to each liquid outlet hole position.

[0015] The above-mentioned hinge groove may include a first hinge hole, a second hinge hole and a third hinge hole which are connected in sequence from top to bottom. The inner wall of the second hinge hole is spherical, and the hinge ball is hingedly installed in the second hinge hole. A locking nut is fixedly installed on the inner side of the lower part of the third hinge hole. The locking nut is mounted on the outer side of the upper part of the Y-shaped hinge tube with an inverted cross-section. An annular gasket is mounted on the inner side of the lower part of the first hinge hole, and a fifth elastic reset component is installed on the inner side of the upper part of the first hinge hole so that the inner side of the lower end of the annular gasket is against the upper part of the hinge ball.

[0016] The above-mentioned detection component may include an outer tube, an upper magnetic steel, a lower magnetic steel, a coil assembly, a first connecting cable and a second connecting cable. The outer side of the upper end of the ball seat and the inner side of the lower end of the outer tube are sealed and fixed together, the upper end of the outer tube and the lower end of the joint assembly are sealed and fixed together, the inner side of the upper end of the outer tube is sleeved with a hollow upper connecting rod, an upper buffer sleeve is installed between the upper end of the upper connecting rod and the lower end of the joint assembly, an upper fixed ring platform is fixedly installed on the outer side of the upper part of the upper connecting rod, a coil sleeve is fixedly installed on the outer side of the lower part of the upper connecting rod, a coil ring groove is provided on the outer side of the middle of the coil sleeve, a seal is provided between the outer side of the coil sleeve and the inner side of the outer tube at the corresponding positions above and below the coil ring groove, a wire threading hole is provided on the upper part of the coil ring groove that is connected to the inner side of the coil sleeve, and a coil is installed in the coil ring groove Assembly, an annular upper magnetic steel is installed on the outer side of the upper connecting rod corresponding to the position between the upper end of the coil sleeve and the lower end of the upper fixed ring platform, a lower connecting rod is fixedly installed on the inner side of the lower part of the coil sleeve, a lower buffer sleeve is provided between the lower end of the lower connecting rod and the upper end of the ball seat, a lower fixed ring platform is fixedly installed on the outer side of the lower part of the lower connecting rod, an annular lower magnetic steel is installed on the outer side of the lower connecting rod corresponding to the position between the lower end of the coil sleeve and the upper end of the lower fixed ring platform, the upper end of the lower magnetic steel and the lower end of the upper magnetic steel are both N poles, a welding piece is fixed on the outer side of the upper end of the upper fixed ring platform, the lower end of the joint assembly and one end of the coil assembly are electrically connected together by a first connecting cable sealed and passed through the interior of the upper connecting rod and the wire threading hole, and the other end of the coil assembly and the welding piece are electrically connected together through a second connecting cable.

[0017] The upper end of the above-mentioned coil sleeve can be provided with an upper mounting groove with an opening upward, and the lower part of the upper magnetic steel is sleeved in the upper mounting groove. The outer side of the upper fixed ring platform is provided with a plurality of vertically penetrating mounting slots at intervals along the circumference. An upper spring piece is fixedly installed in each slot, the inner side of the lower end of which abuts against the outer side of the upper part of the upper magnetic steel. The middle part of each upper spring piece protrudes outward and abuts against the inner side of the outer tube. The lower end of the coil sleeve is provided with a lower mounting groove with an opening downward, and the upper part of the lower magnetic steel is sleeved in the lower mounting groove.

[0018] A first insulating sleeve can be fixedly installed on the inner side of the upper end of the upper connecting rod, and a wiring terminal can be fixedly installed on the inner side of the first insulating sleeve. The lower end of the wiring terminal is fixedly connected to the upper end of the first connecting cable, and the upper end of the wiring terminal is in contact with the connector assembly.

[0019] The above-mentioned connector assembly may include a salvaging head, a middle connector, a second insulating sleeve, a pin, a jack seat and a contact. The outer side of the lower end of the middle connector is sealed and fixedly installed on the inner side of the upper end of the outer tube. The upper end of the middle connector and the lower end of the salvaging head of the hollow structure are fixedly installed together. The pin is sealed and fixedly installed on the inner side of the upper part of the middle connector. The second insulating sleeve is fixedly installed on the inner side of the lower part of the middle connector corresponding to the position below the pin. The jack seat is installed on the inner side of the upper part of the second insulating sleeve. The inner side of the upper end of the jack seat and the outer side of the lower end of the pin are tightly fitted together. The contact is installed on the inner side of the lower part of the second insulating sleeve. A sixth elastic reset member is provided between the lower end of the jack seat and the contact, which can make the lower end of the contact and the upper end of the terminal abut against each other.

[0020] The above-mentioned joint assembly may also include a gland sleeve, a sealing socket, a third connecting cable, a fourth connecting cable, a locking mechanism and a straightening spring piece. An outer ring groove is provided on the upper outer side of the middle joint, and a connecting sleeve arranged in half is sleeved in the outer ring groove. The upper outer side of the connecting sleeve and the inner side of the lower end of the salvaging head are fixedly installed together. A gland is fixedly installed on the upper inner side of the middle joint, and a sealing socket is sleeved in the gland sleeve, which is tightly sleeved together with the lower inner side and the upper outer side of the pin. A wiring sleeve is sleeved on the middle inner side of the salvaging head, and the lower end of the wiring sleeve and the sealing socket are connected through the third connecting cable. A cable sleeve is fixedly installed on the upper end of the wiring sleeve, and a fourth connecting cable is fixedly installed on the upper end of the cable sleeve. The upper end of the fourth connecting cable passes through the salvaging head and is located above the salvaging head. A locking mechanism capable of fixing the fourth connecting cable is installed on the inner side of the upper part of the salvaging head. The outer side of the salvage head is provided with an upper righting groove and a lower righting groove at intervals above and below the outer side of the salvage head, and an upper sliding sleeve is provided on the outer side of the upper part of the salvage head corresponding to the position of the upper righting groove, and a plurality of upper sliding blocks that can move up and down in the upper righting groove are fixedly installed on the inner side of the upper sliding sleeve at intervals along the circumference, and an upper telescopic groove opening downward is formed between the outer side of the lower part of each upper sliding block and the inner side of the upper sliding sleeve, and a lower telescopic groove opening upward is formed between the outer side of the upper part of each lower slider and the inner side of the lower sleeve, and a righting spring is inserted in each upper telescopic groove, and the lower end of each righting spring is inserted in the lower telescopic groove at the corresponding position, and the middle part of each righting spring is arched outward.

[0021] The above-mentioned locking mechanism may include a first cone sleeve, a second cone sleeve, a third cone sleeve, a locking sleeve and a pressing sleeve. A threaded sleeve is fixedly installed on the inner side of the upper part of the salvage head, and the outer side of the lower end of the threaded sleeve is fixedly installed with the inner side of the upper end of the first cone sleeve. A plurality of anti-rotation grooves are evenly distributed along the circumference on the outer side of the middle of the first cone sleeve. Corresponding to the outer side of the upper part of the salvage head at each anti-rotation groove position, an anti-rotation screw hole communicating with the inside and outside is provided, and an anti-rotation screw with an end located in the anti-rotation groove at the corresponding position is screwed in each anti-rotation screw hole. The inner side of the lower part of the first cone sleeve is a cone with a small top and a large bottom. The first cone A second cone sleeve is mounted on the inner side of the lower part of the sleeve, and the outer side and inner side of the second cone sleeve are both conical surfaces matching the inner side of the first cone sleeve. A third cone sleeve is mounted on the inner side of the second cone sleeve, and the outer side of the third cone sleeve is a conical surface matching the inner side of the second cone sleeve. Fixings whose upper ends are fixed to corresponding positions on the outer side of the fourth connecting cable are provided between the outer side of the second cone sleeve and the inner side of the first cone sleeve, and between the inner side of the second cone sleeve and the outer side of the third cone sleeve. A locking sleeve is fixedly installed on the outer side of the lower end of the first cone sleeve, and a compression sleeve whose upper end is abutted against the lower end of the third cone sleeve is installed on the inner side of the lower part of the locking sleeve.

[0022] A fifth connecting cable may be fixedly connected between the lower end of the locking sleeve and the upper end of the middle connector.

[0023] An insulating layer may be provided between the outer side of the upper part of the third connecting cable and the outer side of the lower part of the fourth connecting cable. A wear-resistant base is provided on the inner side of the middle part of the righting spring. A U-shaped wear-resistant block with an inward-opening cross-section is fixedly installed on the outer side of the wear-resistant base. A fixing hole is formed on the inner side of the wear-resistant block and the outer side of the wear-resistant base, and the outer side of the middle part of the righting spring is fixedly installed in the fixing hole.

[0024] The present invention has a reasonable and compact structure and is easy to use. It provides pumping force through fracturing fluid to achieve horizontal well sealing and meet the needs of fracturing work. The sealing assembly is pumped to the target position downhole, and then the target position is sealed after the fracturing fluid acts on the sealing assembly. After the seal is complete, the drawworks lifts the joint assembly to separate it from the sealing assembly, thereby recovering the joint assembly and the detection assembly. The detection assembly can measure the number of casing collars used to connect two adjacent casings in the well, thereby determining the depth of the detection assembly in the oil well, which is convenient for detecting the position of the detection assembly downhole. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Attachment Figure 1 This is a schematic diagram of the main cross-sectional structure of the upper part of Example 1.

[0026] Attachment Figure 2 It is a schematic diagram of the main cross-sectional structure of the middle part of Example 1.

[0027] Attachment Figure 3 It is a schematic diagram of the main cross-sectional structure of the lower part of the embodiment.

[0028] Attachment Figure 4 For attachment Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0029] Attachment Figure 5 For attachment Figure 1 Schematic diagram of the enlarged cross-sectional structure of the righting spring at BB.

[0030] Attachment Figure 6 For attachment Figure 2 Schematic diagram of the enlarged structure at point C in the middle.

[0031] Attachment Figure 7 For attachment Figure 2 Schematic diagram of the enlarged structure at point D in the middle.

[0032] Attachment Figure 8 For attachment Figure 3 Schematic diagram of the enlarged structure at E in the middle.

[0033] Attachment Figure 9 For attachment Figure 3 Schematic diagram of the enlarged structure at F in the middle.

[0034] Attachment Figure 10 This is a connection block diagram of the coil assembly in Example 7.

[0035] The codes in the accompanying drawings are: 1 for ball seat, 2 for hinged cylinder, 3 for thrust cylinder, 4 for center shaft, 5 for setting ball, 6 for righting tailstock, 7 for leather cup, 8 for guide ring platform, 9 for outer guide surface, 10 for retaining ring, 11 for wedge block, 12 for guide column, 13 for first elastic return member, 14 for hinged ball, 15 for second elastic return member, 16 for liquid outlet, 17 for lower gland, 18 for upper gland, 19 for partition, 20 for first straight hole, 21 for second straight hole, 22 for third straight hole, 23 for fourth straight hole, 24 is the fifth straight hole, 25 is the slot, 26 is the valve cover, 27 is the valve stem, 28 is the third elastic return member, 29 is the limit ring platform, 30 is the switch hole, 31 is the tightening screw, 32 is the stop pin, 33 is the fourth elastic return member, 34 is the stop ring groove, 35 is the first filter screw, 36 is the second filter screw, 37 is the filter channel, 38 is the annular gasket, 39 is the locking nut, 40 is the fifth elastic return member, 41 is the outer tube, 42 is the upper magnetic steel, 43 is the lower magnetic steel, 44 is the coil assembly, 45 is the first A connecting cable, 46 is a second connecting cable, 47 is an upper connecting rod, 48 is an upper buffer sleeve, 49 is an upper fixed ring, 50 is a coil sleeve, 51 is a seal, 52 is a lower connecting rod, 53 is a lower buffer sleeve, 54 is a lower fixed ring, 55 is a welding piece, 56 is an upper spring, 57 is a first insulating sleeve, 58 is a terminal, 59 is a middle joint, 60 is a second insulating sleeve, 61 is a pin, 62 is a socket, 63 is a contact, 64 is a sixth elastic reset member, 65 is a gland sleeve, 66 is a sealed socket, 67 is a sealing socket, is the third connecting cable, 68 is the fourth connecting cable, 69 is the straightening spring clip, 70 is the connecting sleeve, 71 is the wiring sleeve, 72 is the cable sleeve, 73 is the upper sliding sleeve, 74 is the upper slider, 75 is the lower sliding sleeve, 76 is the lower slider, 77 is the salvage head, 78 is the first cone sleeve, 79 is the second cone sleeve, 80 is the third cone sleeve, 81 is the locking sleeve, 82 is the pressing sleeve, 83 is the threaded sleeve, 84 is the anti-rotation screw, 85 is the fixing part, 86 is the fifth connecting cable, 87 is the insulating layer, 88 is the wear-resistant base, and 89 is the wear-resistant block. DETAILED DESCRIPTION

[0036] The present invention is not limited to the following embodiments, and specific implementation methods can be determined based on the technical solutions of the present invention and actual conditions.

[0037] In the present invention, for the convenience of description, the relative position relationship of each component is described based on the Figure 1 For example, the positional relationships of front, back, up, down, left, and right are determined according to the layout directions of the drawings in the specification.

[0038] The present invention will be further described below in conjunction with the embodiments and accompanying drawings:

[0039] Example 1: As shown in the attached Figures 1 to 3 As shown, the recyclable pumping sealing device includes a joint assembly, a detection assembly and a setting assembly which are installed together in sequence from top to bottom;

[0040] The detection component can obtain the position of the detection component in the well according to the change of the material of the adjacent casing and casing collar in the well;

[0041] The joint assembly can connect the detection assembly and the ground equipment together;

[0042] The sealing assembly can seal the target position and can be separated from the detection assembly during recovery and remain in the well to maintain the sealing state of the target position. At the same time, after the fracturing fluid acts on the sealing assembly, the sealing assembly can drive the detection assembly and the joint assembly to move in the horizontal well.

[0043] During use, the fracturing fluid provides pumping force to achieve horizontal well sealing, meet the needs of fracturing work, pump the sealing assembly to the target position underground, and then the fracturing fluid acts on the sealing assembly to seal the target position. After the seal is intact, the drawworks lifts the joint assembly to achieve mutual separation from the sealing assembly, thereby recovering the joint assembly and the detection assembly. Since the two adjacent casings are connected by a casing coupling, the materials of the casing and the casing coupling are different, the detection assembly can measure the number of casing couplings used to connect the two adjacent casings in the well, thereby determining the depth of the detection assembly lowered into the oil well, which is convenient for detecting the position of the detection assembly underground. The present invention has a reasonable and compact structure, is easy to use, and has the characteristics of safety, simplicity and high efficiency.

[0044] The above-mentioned recyclable pumping sealing device can be further optimized and / or improved according to actual needs:

[0045] Example 2: As an optimization of the above example, as shown in the attached Figure 2 、 3As shown in Figures 7 and 9, the sealing assembly includes a ball seat 1, an articulated cylinder 2, a thrust cylinder 3, a valve core mechanism, a central shaft 4, a sealing ball 5, a straightening tail seat 6 and a leather cup 7. The upper end of the ball seat 1 and the lower end of the detection assembly are sealed and fixed together. The inner side of the lower part of the ball seat 1 is provided with a hinged groove opening downward. The upper end of the articulated cylinder 2 is fixed with an articulated ball 14 hingedly installed in the articulated groove. The inner side of the lower end of the articulated cylinder 2 and the outer side of the upper end of the thrust cylinder 3 are fixed together. A number of liquid inlet holes connected inside and outside are evenly distributed along the circumference on the outer side of the upper part of the articulated cylinder 2 corresponding to the position above the thrust cylinder 3. The inner side of the thrust cylinder 3 is provided with an upper The flow passage passes through the bottom, and the upper end of the thrust cylinder 3 is provided with a valve core mechanism that can open and close the flow passage. A hollow central shaft 4 is sleeved on the inner side of the lower part of the flow passage. A second elastic reset member 15 is provided between the upper part of the central shaft 4 and the lower part of the thrust cylinder 3. The lower end of the central shaft 4 and the upper part of the sealing ball 5 are fixedly installed together. A plurality of liquid outlet holes 16 that are connected inside and outside are evenly distributed along the circumference at intervals corresponding to the lower outer side of the central shaft 4 above the sealing ball 5. A straightening tailstock 6 is sleeved on the outer side of the lower part of the central shaft 4 corresponding to the position above the liquid outlet hole 16. The upper end of the straightening tailstock 6 and the lower end of the thrust cylinder 3 are installed together, corresponding to the thrust cylinder 3. A guide ring platform 8 is fixed to the outer side of the lower part of the central shaft 4 at the lower position of the force cylinder 3. The outer side of the lower part of the guide ring platform 8 is a conical outer guide surface 9 with a larger upper part and a smaller lower part. A guide ring groove is provided on the outer side of the upper part of the straightening tailstock 6 corresponding to the position of the guide ring platform 8. A plurality of radially penetrating inner guide mounting holes are evenly spaced along the circumference in the middle of the guide ring groove. A buckle 10 is fixedly installed in the guide ring groove. A radially penetrating outer guide mounting hole is provided on the outer side of the buckle 10 corresponding to each inner guide mounting hole position. A wedge block 11 is slidably installed in each inner guide mounting hole. A wedge block 11 is fixed on the outer side of each wedge block 11 through the corresponding position. The guide column 12 is provided with an outer guide mounting hole, the inner side of the upper part of the wedge block 11 is a conical surface matching the outer guide surface 9, and a first elastic reset member 13 is provided between the outer side of the wedge block 11 and the inner side of the retaining ring 10, which can make the inner side of the wedge block 11 abut against the outer side of the guide ring platform 8. A lower pressure cover 17 is installed on the outer side of the retaining ring 10 corresponding to the upper side of the guide column 12, and an upper pressure cover 18 is installed on the outer side of the upper part of the thrust cylinder 3 corresponding to the position below the hinge cylinder 2. A number of annular partitions 19 are arranged between the upper and lower pressure covers 18 and the lower pressure cover 17, and each partition 19 is installed with leather cups 7 on both sides.

[0046] According to the requirements, the inner side of the lower end of the lower gland 17 and the upper side of the guide column 12 are both provided with chamfered structures. During use, through such a setting, when the sealing assembly is located in the horizontal well, the high-pressure fracturing fluid acts on the leather cup 7 and starts to push the leather cup 7 to move. The leather cup 7 acts on the lower gland 17 and the guide column 12, so that the thrust cylinder 3, the central axis 4, the straightening tailstock 6 and the sealing ball 5 move as a whole along the horizontal well, which can drive the detection assembly to move in the horizontal well. The pressurized fracturing fluid pushes the leather cup 7 to move to the target position, and continues to increase the pressure. After the leather cup 7 is squeezed and expanded, it seals the target position, and then the connecting assembly is lifted, and the thrust cylinder 3 and the straightening tailstock 6 are separated from each other, so that when the leather cup 7 is separated from the detection assembly during recovery, it remains in the well to maintain the sealing state at the target position.

[0047] Example 3: As an optimization of the above embodiment, as shown in the attached Figure 3 、 8 As shown, the flow passage includes a first straight hole 20, a second straight hole 21, a third straight hole 22, a fourth straight hole 23 and a fifth straight hole 24 that are sequentially connected from top to bottom. The inner diameters of the first straight hole 20, the second straight hole 21 and the third straight hole 22 decrease in sequence, while the inner diameters of the third straight hole 22, the fourth straight hole 23 and the fifth straight hole 24 increase in sequence. A plurality of inwardly opening slots 25 are evenly spaced on the step surface between the second straight hole 21 and the third straight hole 22. The valve core mechanism includes a valve cover 26, a valve stem 27 and a third elastic return member 28. The outer side of the lower portion of the valve cover 26 is fixedly mounted in the first straight hole 20, and an upper end center of the valve cover 26 is provided with an opening that passes through from top to bottom. The closing hole 30 is provided, and a T-shaped valve stem 27 with a larger upper portion and a smaller lower portion is mounted on the inner side of the valve cover 26. The outer side of the lower portion of the valve stem 27 is mounted in the third straight hole 22. A third elastic return member 28 is provided between the step surface between the second straight hole 21 and the third straight hole 22 and the outer side of the upper portion of the valve stem 27, which enables the upper end of the valve stem 27 to be in sealing contact with the inner side of the upper portion of the valve cover 26. A first step surface is provided on the inner side of the upper portion of the straightening tailstock 6 corresponding to the upper end position of the guide ring platform 8. A limiting ring platform 29 is fixed to the outer side of the upper portion of the center axis 4 corresponding to the position of the first step surface. The second elastic return member 15 is installed between the step surface between the fourth straight hole 23 and the fifth straight hole 24 and the upper end of the limiting ring platform 29.

[0048] According to requirements, the upper end of the valve stem 27 and the inner side of the upper part of the valve cover 26 are both conical with a small top and a large bottom. A sealing ring is installed on the upper end of the valve stem 27, and the third elastic reset member 28 is an existing well-known technology, such as a compression spring. During use, through such a setting, when the sealing assembly is located in the horizontal well, the high-pressure fracturing fluid acts on the leather cup 7 and begins to push the leather cup 7 to move. Due to the second elastic reset member 15, the guide ring 8 and the wedge block 11 are offset against each other, causing the guide column 12 to extend, so that the leather cup 7 acts on the lower pressure cover 17 and the guide column 12, so that the thrust cylinder 3, the center shaft 4, the straightening tail seat 6 and the sealing ball 5 move as a whole along the horizontal well. If the pressure is too high, the fracturing fluid enters the inner side of the thrust cylinder 3 from the liquid inlet hole, and then acts on the upper end of the valve stem 27 through the switch hole 30. The valve stem 27 compresses the third elastic reset member 28 downward and enters the flow channel in the thrust cylinder 3, and then flows into the third straight hole 22 through the slot 25, and finally flows out of the liquid outlet 16 for pressure relief.

[0049] When the sealing ball 5 reaches the sealing position, it is blocked and no longer moves. At this time, the center shaft 4 and the straightening tailstock 6 approach each other and squeeze the second elastic reset member 15. The liquid outlet 16 is blocked by the inner wall of the straightening tailstock 6. The wedge block 11 moves inward under the action of the first elastic reset member 13. At the same time, the guide column 12 retracts into the straightening tailstock 6. At this time, the pressurized fracturing fluid pushes the leather cup 7 to move to the target position and continues to increase the pressure. The leather cup 7 is squeezed and expanded to seal the target position. When the connecting assembly is lifted, the thrust cylinder 3 and the straightening tailstock 6 are separated from each other, so that the leather cup 7 and the sealing ball 5 are separated from the detection assembly during recovery and remain in the well to maintain a sealed state at the target position.

[0050] Example 4: As an optimization of the above embodiment, as shown in the attached Figure 3 、 9 As shown, a number of radially penetrating check holes are evenly distributed along the circumference on the outer side of the lower part of the straightening tailstock 6 corresponding to the position below the retaining ring 10, and a clamping screw 31 is screwed in each check hole. A check pin 32 is installed in the check hole corresponding to the position between the clamping screw 31 and the outer side of the center shaft 4, and a fourth elastic reset member 33 is provided between the clamping screw 31 and the check pin 32 to make the end of the check pin 32 abut against the outer side of the center shaft 4. A check ring groove 34 is provided on the outer side of the center shaft 4 between the check hole and the lower end of the straightening tailstock 6.

[0051] During use, such a setting can prevent the fourth elastic reset member 33 from failing after the center shaft 4 moves upward too far, thereby ensuring the reliability of the center shaft 4 and the sealing ball 5 during use. According to needs, a safety groove is provided on the outer side of the center shaft 4 below the check ring groove 34, and a safety hole connected inside and outside is provided on the outer side of the lower part of the straightening tailstock 6 corresponding to the position of the safety groove. A safety pin with an end located in the safety groove is fixedly installed in the safety hole, which can prevent the center shaft 4 from moving up and down during transportation and causing a malfunction. The fourth elastic reset member 33 is an existing well-known compression spring.

[0052] Example 5: As an optimization of the above embodiment, as shown in the attached Figure 3 、 8 As shown, a first filter screw 35 is detachably fixedly installed in the liquid inlet hole, a fixing groove with an upward opening is provided on the upper part of the sealing ball 5, the outer side of the lower part of the central shaft 4 is fixedly installed in the fixing groove, and a second step surface is provided on the inner side of the lower part of the central shaft 4 corresponding to the position above the liquid outlet hole 16. A second filter screw 36 with an upper end in contact with the second step surface is fixedly installed on the inner side of the lower part of the central shaft 4, and a filtering channel 37 connected to the inner side of the central shaft 4 is provided on the outer side of the lower part of the second filter screw 36 corresponding to the position of each liquid outlet hole 16.

[0053] As required, the first and second filter screws 35, 36 are both known in the art and are hollow screws with a filter fixed to their inner sides. This arrangement prevents impurities from entering the central shaft 4, thrust cylinder 3, and valve core mechanism during use, potentially causing malfunctions in the central shaft 4 and valve core mechanism, and potentially affecting the setting operation.

[0054] Example 6: As an optimization of the above embodiment, as shown in the attached Figure 2 、 3 As shown in Figures 7 and 8, the hinge groove includes a first hinge hole, a second hinge hole and a third hinge hole which are connected in sequence from top to bottom. The inner wall of the second hinge hole is spherical, and the hinge ball 14 is hingedly installed in the second hinge hole. A locking nut 39 is fixedly installed on the inner side of the lower part of the third hinge hole. The locking nut 39 is mounted on the outer side of the upper part of the Y-shaped hinge tube 2 with an inverted cross-section. An annular gasket 38 is mounted on the inner side of the lower part of the first hinge hole, and a fifth elastic reset member 40 is installed on the inner side of the upper part of the first hinge hole so that the inner side of the lower end of the annular gasket 38 is abutted against the upper part of the hinge ball 14.

[0055] As required, a positioning hole is provided on the lower outer side of the ball seat 1, communicating with the third hinge hole. A positioning groove is provided on the outer side of the locking nut 39 corresponding to the positioning hole. A positioning pin with its end located in the positioning groove is installed in the positioning hole. This prevents the locking nut 39 from loosening during use, which could cause the hinge ball 14 and the ball seat 1 to separate from each other. An oil filling hole is provided on the outer side of the ball seat 1 corresponding to the first hinge hole, communicating with each other. An oil filling plug is threadedly connected to the oil filling hole. This arrangement facilitates the filling of grease into the hinge groove, reducing wear between the hinge ball 14 and the ball seat 1. The fifth elastic return member 40 is a conventionally known technology, such as a top-to-top wave spring. During use, the provision of the locking nut 39 facilitates assembly and disassembly between the hinge ball 14 and the ball seat 1, reducing maintenance costs.

[0056] Example 7: As an optimization of the above embodiment, as shown in the attached Figure 1 、 2 As shown in , 6, and 10, the detection component includes an outer tube 41, an upper magnetic steel 42, a lower magnetic steel 43, a coil assembly 44, a first connecting cable 45 and a second connecting cable 46. The outer side of the upper end of the ball seat 1 and the inner side of the lower end of the outer tube 41 are sealed and fixed together, and the upper end of the outer tube 41 and the lower end of the joint assembly are sealed and fixed together. A hollow upper connecting rod 47 is sleeved on the inner side of the upper end of the outer tube 41, and an upper buffer sleeve 48 is installed between the upper end of the upper connecting rod 47 and the lower end of the joint assembly. An upper fixed ring platform 49 is fixedly installed on the outer side of the upper part of the upper connecting rod 47, and a coil sleeve 50 is fixedly installed on the outer side of the lower part of the upper connecting rod 47. A coil ring groove is provided on the outer side of the middle part of the coil sleeve 50, and a seal 51 is provided between the outer side of the coil sleeve 50 and the inner side of the outer tube 41 corresponding to the upper and lower positions of the coil ring groove. A wire threading hole is provided on the upper part of the coil ring groove that is connected to the inner side of the coil sleeve 50, and a coil assembly is installed in the coil ring groove. 44, an annular upper magnetic steel 42 is installed on the outer side of the upper connecting rod 47 corresponding to the position between the upper end of the coil sleeve 50 and the lower end of the upper fixed ring platform 49, a lower connecting rod 52 is fixedly installed on the inner side of the lower part of the coil sleeve 50, a lower buffer sleeve 53 is provided between the lower end of the lower connecting rod 52 and the upper end of the ball seat 1, a lower fixed ring platform 54 is fixedly installed on the outer side of the lower part of the lower connecting rod 52, an annular lower magnetic steel 43 is installed on the outer side of the lower connecting rod 52 corresponding to the position between the lower end of the coil sleeve 50 and the upper end of the lower fixed ring platform 54, the upper end of the lower magnetic steel 43 and the lower end of the upper magnetic steel 43 are both N poles, a welding piece 55 is fixed on the outer side of the upper end of the upper fixed ring platform 49, the lower end of the connector assembly and one end of the coil assembly 44 are electrically connected together through a first connecting cable 45 sealed and passed through the interior of the upper connecting rod 47 and the wire threading hole, and the other end of the coil assembly 44 and the welding piece 55 are electrically connected together through a second connecting cable 46.

[0057] As required, the seal 51 is a conventionally known sealing ring. During use, with this arrangement, when the coil assembly 44 passes through adjacent casings and the casing coupling used to connect the two casings, the magnetic fields of the upper magnetic steel 42 and the lower magnetic steel 43 change, causing a potential difference to be generated at both ends of the coil assembly 44, generating a current within the coil assembly 44. This signal is then transmitted upward through the first connecting cable 45. Surface equipment can determine the number of casings passed by the coil assembly 44 based on the number of current changes. By accumulating the length of the casings passed, the depth of the coil assembly 44 within the well can be determined. The lower end of the connector assembly and one end of the coil assembly 44 are electrically connected together by the first connecting cable 45, which is sealed and inserted into the upper connecting rod 47 and the threading hole. The other end of the coil assembly 44 and the welding piece 55 are electrically connected together by the second connecting cable 46. This allows the coil connection to form a loop.

[0058] Example 8: As an optimization of the above embodiment, as shown in the attached Figure 2 、 6 As shown, the upper end of the coil sleeve 50 is provided with an upper mounting groove with an opening upward, and the lower part of the upper magnetic steel 42 is sleeved in the upper mounting groove. The outer side of the upper fixed ring platform 49 is provided with a plurality of vertically penetrating mounting slots at intervals along the circumference. An upper spring piece 56 is fixedly installed in each slot, and the inner side of the lower end abuts against the outer side of the upper part of the upper magnetic steel 42. The middle part of each upper spring piece 56 protrudes outward and abuts against the inner side of the outer tube 41. The lower end of the coil sleeve 50 is provided with a lower mounting groove with an opening downward, and the upper part of the lower magnetic steel 43 is sleeved in the lower mounting groove.

[0059] During use, such a setting can limit the upper magnetic steel 42 and the lower magnetic steel 43, preventing the upper magnetic steel 42 and the lower magnetic steel 43 from shaking during use and affecting the measurement results.

[0060] Example 9: As an optimization of the above embodiment, as shown in the attached Figure 2 、 6 As shown in Figure 10, a first insulating sleeve 57 is fixedly installed on the inner side of the upper end of the upper connecting rod 47, and a wiring terminal 58 is fixedly installed on the inner side of the first insulating sleeve 57. The lower end of the wiring terminal 58 is fixedly connected to the upper end of the first connecting cable 45, and the upper end of the wiring terminal 58 is in contact with the connector assembly.

[0061] During use, this arrangement ensures a reliable connection between the first connecting cable 45 and the terminal block 58, while also improving the insulation performance at the connection between the first connecting cable 45 and the terminal block 58. If desired, a channel of conventionally known Corning RTV3140 adhesive may be poured outside the connection between the terminal block 58 and the first connecting cable 45 to further improve insulation performance.

[0062] Example 10: As an optimization of the above embodiment, as shown in the attached Figure 1 、4 As shown in Figure 5, the connector assembly includes a fishing head 77, a middle connector 59, a second insulating sleeve 60, a pin 61, a jack seat 62 and a contact 63. The outer side of the lower end of the middle connector 59 is sealed and fixedly mounted on the inner side of the upper end of the outer tube 41. The upper end of the middle connector 59 and the lower end of the fishing head 77 of the hollow structure are fixedly mounted together. The pin 61 is sealed and fixedly mounted on the inner side of the upper part of the middle connector 59. The second insulating sleeve 60 is fixedly mounted on the inner side of the lower part of the middle connector 59 corresponding to the position below the pin 61. The jack seat 62 is mounted on the inner side of the upper part of the second insulating sleeve 60. The inner side of the upper end of the jack seat 62 and the outer side of the lower end of the pin 61 are tightly fitted together. The contact 63 is mounted on the inner side of the lower part of the second insulating sleeve 60. A sixth elastic reset member 64 is provided between the lower end of the jack seat 62 and the contact 63, which can make the lower end of the contact 63 abut against the upper end of the terminal 58.

[0063] According to the requirements, the sixth elastic reset member 64 is an existing well-known technology, such as a compression spring. The lower end surface of the contact 63 is spherical. The second insulating sleeve 60 includes a lower insulating sleeve and a large insulating sleeve that are sleeved together from top to bottom. The inner side of the lower part of the middle joint 59 is clamped with an elastic retaining ring whose upper end is in contact with the lower end of the large insulating sleeve. The inner side of the lower end of the large insulating sleeve is fixed with an inner ring platform sleeved on the outside of the contact 63. This can prevent the contact 63 and the second insulating sleeve 60 from separating from each other. The inner side of the upper end of the jack seat 62 and the outer side of the lower end of the pin 61 can be welded to enhance the connection strength. Through such an arrangement, a reliable connection between the contact 63 and the terminal 58 can be achieved, which is convenient for uploading the detection component signal, and can improve the insulation performance, thereby reducing the failure rate.

[0064] Example 11: As an optimization of the above example, as shown in the attached Figure 1 、 4As shown in Figure 5, the connector assembly also includes a gland sleeve 65, a sealing socket 66, a third connecting cable 67, a fourth connecting cable 68, a locking mechanism and a straightening spring 69. The outer side of the upper part of the middle connector 59 is provided with an outer ring groove, and a connecting sleeve 70 arranged in half is set in the outer ring groove. The outer side of the upper part of the connecting sleeve 70 and the inner side of the lower end of the fishing head 77 are fixedly installed together. The upper inner side of the middle connector 59 is fixedly installed with a gland sleeve 65, and the gland sleeve 65 is set with a sealing socket 66 tightly fitted together with the lower inner side of the upper outer side of the pin 61. The middle inner side of the fishing head 77 is set with a wiring sleeve 71. The lower end of the wiring sleeve 71 and the sealing socket 66 are connected through the third connecting cable 67. The upper end of the wiring sleeve 71 is fixedly installed with a cable sleeve 72, and the upper end of the cable sleeve 72 is fixedly installed with the fourth connecting cable 68. The upper end of the fourth connecting cable 68 passes through the fishing head 77 and is located above the fishing head 77. The upper inner side of the fishing head 77 is equipped with a cable sleeve that can be fixed. When the cam 73 is in the unlock position, the locking cam 77 is locked, and the locking cam 77 is locked.

[0065] As required, a limit block is fixed to the upper end of the middle joint 59, and a limit groove matching the limit block is provided on the inner side of the lower part of the salvage head 77. The limit block is installed in the limit groove. This connection can prevent the middle joint 59 and the salvage head 77 from rotating relative to each other, and can also ensure the distance between the upper end of the middle joint 59 and the lower end of the locking mechanism. The half-arranged connecting sleeve 70 is fixed together by screws, and the upper outer side of the connecting sleeve 70 and the lower inner side of the salvage head 77 are screwed together. A glue injection hole communicating inside and outside is provided on the outer side of the lower part of the salvage head 77, and a glue injection screw is sealed and screwed in the glue injection hole. This facilitates filling grease in the salvage head 77 to improve the insulation performance of the third connecting cable 67 and the fourth connecting cable 68. The upper and lower centralizing grooves are arranged at intervals along the circumference. In this embodiment, the number of upper centralizing grooves is four.

[0066] The cam 74 is in the process of being rotated, and the cam 76 is in the process of being rotated, and the cam 76 is in the process of being rotated.

[0067] Example 12: As an optimization of the above example, as shown in the attached Figure 1 As shown, the locking mechanism includes a first cone sleeve 78, a second cone sleeve 79, a third cone sleeve 80, a locking sleeve 81 and a pressing sleeve 82. A threaded sleeve 83 is fixedly installed on the inner side of the upper part of the fishing head 77. The outer side of the lower end of the threaded sleeve 83 is fixedly installed together with the inner side of the upper end of the first cone sleeve 78. A number of anti-rotation grooves are evenly distributed along the circumference on the outer side of the middle part of the first cone sleeve 78. Corresponding to each anti-rotation groove position, the outer side of the upper part of the fishing head 77 is provided with an anti-rotation screw hole communicating inside and outside. Each anti-rotation screw hole is threaded with an anti-rotation screw 84 whose end is located in the anti-rotation groove at the corresponding position. The inner side of the lower part of the first cone sleeve 78 is a cone with a small upper part and a large lower part. The inner side of the lower part of the first cone sleeve 78 is a cone with a small upper part and a large lower part. A second cone sleeve 79 is provided on the side, and the outer and inner sides of the second cone sleeve 79 are both conical surfaces that match the inner side of the first cone sleeve 78. A third cone sleeve 80 is provided on the inner side of the second cone sleeve 79, and the outer side of the third cone sleeve 80 is a conical surface that matches the inner side of the second cone sleeve 79. A fixing piece 85 whose upper end is fixed to the corresponding position of the outer side of the fourth connecting cable 68 is provided between the outer side of the second cone sleeve 79 and the inner side of the first cone sleeve 78, and between the inner side of the second cone sleeve 79 and the outer side of the third cone sleeve 80. A locking sleeve 81 is fixedly installed on the outer side of the lower end of the first cone sleeve 78, and a compression sleeve 82 whose upper end is abutted against the lower end of the third cone sleeve 80 is installed on the inner side of the lower part of the locking sleeve 81.

[0068] As required, the fixing member 85 serves as an insulating and protective layer on the outside of the fourth connecting cable 68. During use, by rotating the locking sleeve 81, the locking sleeve 81 causes the compression sleeve 82 to move upward, thereby bringing the first cone sleeve 78, the second cone sleeve 79, and the third cone sleeve 80 closer together and clamping the fixing member 85, thereby reliably fixing the fourth connecting cable 68. The provision of an anti-rotation screw 84 prevents the fourth connecting cable 68 from rotating relative to the fishing head 77 during use, thereby preventing the fourth connecting cable 68 from being twisted off. The tapered surfaces of the first cone sleeve 78, the second cone sleeve 79, and the third cone sleeve 80 increase the contact area with the fixing member 85, thereby ensuring that the fourth connecting cable 68 and the fishing head 77 are firmly fixed.

[0069] Example 13: As an optimization of the above embodiment, as shown in the attached Figure 1 、 4 As shown, a fifth connecting cable 86 is fixedly connected between the lower end of the locking sleeve 81 and the upper end of the middle connector 59. During use, such an arrangement can improve the safety performance of the locking sleeve 81 during use.

[0070] Example 14: As an optimization of the above embodiment, as shown in the attached Figure 1 、 5 As shown, an insulating layer 87 is provided between the upper outer side of the third connecting cable 67 and the lower outer side of the fourth connecting cable 68, a wear-resistant base 88 is provided on the inner side of the middle part of the straightening spring 69, and a U-shaped wear-resistant block 89 with an inward-opening cross-section is fixedly installed on the outer side of the wear-resistant base 88. A fixing hole is formed on the inner side of the wear-resistant block 89 and the outer side of the wear-resistant base 88, and the outer side of the middle part of the straightening spring 69 is fixedly installed in the fixing hole.

[0071] As needed, insulation layer 87 can be made of conventionally known technology, such as high-voltage self-adhesive tape wrapped around the outside of third connecting cable 67 and fourth connecting cable 68. During use, the provision of wear-resistant base 88 and wear-resistant block 89 facilitates assembly and disassembly of righting spring 69. The provision of wear-resistant block 89 also improves wear resistance and extends the service life of righting spring 69.

[0072] The above technical features constitute the embodiments of the present invention, which have strong adaptability and implementation effect. Non-essential technical features can be added or removed according to actual needs to meet the requirements of different situations.

Claims

1. A recyclable pumping sealing device, characterized in that It includes a joint assembly, a detection assembly and a setting assembly which are installed together in sequence from top to bottom; The detection component can obtain the position of the detection component in the well according to the change of the material of the adjacent casing and casing collar in the well; The joint assembly can connect the detection assembly and the ground equipment together; The setting seal assembly can seal the target position and can be separated from the detection assembly and left downhole to maintain the sealing state of the target position during recovery. At the same time, after the fracturing fluid acts on the setting seal assembly, the setting seal assembly can drive the detection assembly and the joint assembly to move in the horizontal well. The setting seal assembly includes a ball seat, an articulated cylinder, a thrust cylinder, a valve core mechanism, a center shaft, a setting seal ball, a straightening tail seat and a leather cup. The upper end of the ball seat and the lower end of the detection assembly are sealed and fixed together. The inner side of the lower part of the ball seat is provided with a hinged groove opening downward. The upper end of the articulated cylinder is fixed with an articulated ball hingedly installed in the articulated groove. The inner side of the lower end of the articulated cylinder and the outer side of the upper end of the thrust cylinder are fixed together. The outer side of the upper end of the articulated cylinder corresponding to the position above the thrust cylinder is evenly spaced along the circumference with a number of liquid inlet holes connected inside and outside. The inner side of the thrust cylinder is provided with an upper and lower through hole. The flow passage is connected, and the upper end of the thrust cylinder is provided with a valve core mechanism that can open and close the flow passage. A hollow central shaft is sleeved on the inner side of the lower part of the flow passage. A second elastic reset member is provided between the upper part of the central shaft and the lower part of the thrust cylinder. The lower end of the central shaft and the upper part of the setting ball are fixedly installed together. A number of liquid outlet holes that are connected inside and outside are evenly distributed along the circumference on the outer side of the lower part of the central shaft corresponding to the position above the setting ball. A straightening tailstock is sleeved on the outer side of the lower part of the central shaft corresponding to the position above the liquid outlet hole. The upper end of the straightening tailstock and the lower end of the thrust cylinder are installed together. A guide ring platform is fixed on the outer side of the lower part of the central shaft corresponding to the position below the thrust cylinder. The outer side of the lower part of the guide ring platform is a conical outer guide surface with a larger upper part and a smaller lower part. A guide ring groove is provided on the outer side of the upper part of the straightening tailstock corresponding to the position of the guide ring platform. Several radially penetrating inner guide mounting holes are evenly distributed along the circumference in the middle of the guide ring groove. A retaining ring is fixedly installed in the guide ring groove. A radially penetrating outer guide mounting hole is provided on the outer side of the retaining ring corresponding to the position of each inner guide mounting hole. A wedge block is slidably installed in each inner guide mounting hole. Each wedge block A guide column passing through the outer guide mounting hole at the corresponding position is fixed on the outside. The inner side of the upper part of the wedge block is a conical surface matching the outer guide surface. A first elastic reset member is provided between the outer side of the wedge block and the inner side of the buckle, which can make the inner side of the wedge block abut against the outer side of the guide ring platform. A lower pressure cover is installed on the outer side of the buckle corresponding to the upper side of the guide column, and an upper pressure cover is installed on the outer side of the upper part of the thrust cylinder corresponding to the position below the hinge cylinder. A number of annular partitions are provided between the upper and lower pressure covers, and leather cups are installed on the upper and lower sides of each partition. The inner side of the lower end of the lower gland and the upper side of the guide column are both provided with chamfered structures.

2. The recyclable pumping seal device according to claim 1, characterized in that The flow passage includes a first straight hole, a second straight hole, a third straight hole, a fourth straight hole and a fifth straight hole which are connected in sequence from top to bottom. The inner diameters of the first straight hole, the second straight hole and the third straight hole decrease in sequence, while the inner diameters of the third straight hole, the fourth straight hole and the fifth straight hole increase in sequence. A plurality of slots opening inward are evenly spaced on the step surface between the second straight hole and the third straight hole. The valve core mechanism includes a valve cover, a valve stem and a third elastic return member. The outer side of the lower part of the valve cover is fixedly installed in the first straight hole. A switch hole which passes through the valve cover from top to bottom is provided in the center of the upper end. A T-shaped valve stem with a larger upper portion and a smaller lower portion is mounted on the inner side of the cover. The outer side of the lower portion of the valve stem is mounted in the third straight hole. A third elastic reset member is provided between the step surface between the second and third straight holes and the outer side of the upper portion of the valve stem, which enables the upper end of the valve stem to be in sealing contact with the inner side of the upper portion of the valve cover. A first step surface is provided on the inner side of the upper portion of the straightening tailstock corresponding to the upper end position of the guide ring platform. A limiting ring platform is fixed to the outer side of the upper portion of the center shaft corresponding to the position of the first step surface. The second elastic reset member is installed between the step surface between the fourth and fifth straight holes and the upper end of the limiting ring platform. A plurality of radially penetrating check holes are evenly distributed along the circumference on the outer side of the lower part of the straightening tailstock corresponding to the position below the retaining ring, a clamping screw is screwed in each check hole, a check pin is sleeved in the check hole corresponding to the position between the clamping screw and the outer side of the central shaft, a fourth elastic reset member is provided between the clamping screw and the check pin so that the end of the check pin abuts against the outer side of the central shaft, and a check ring groove is provided on the outer side of the central shaft corresponding to the position between the check hole and the lower end of the straightening tailstock; A first filter screw is detachably fixedly installed in the liquid inlet hole, a fixing groove with an upward opening is provided on the upper part of the setting ball, the outer side of the lower part of the central shaft is fixedly installed in the fixing groove, a second step surface is provided on the inner side of the lower part of the central shaft corresponding to the position above the liquid outlet hole, a second filter screw is fixedly installed on the inner side of the lower part of the central shaft, the upper end of which contacts the second step surface, and a filtering channel connected to the inner side of the central shaft is provided on the outer side of the lower part of the second filter screw corresponding to each liquid outlet hole; The hinge groove includes a first hinge hole, a second hinge hole and a third hinge hole which are connected in sequence from top to bottom. The inner wall of the second hinge hole is spherical, and the hinge ball is hingedly installed in the second hinge hole. A locking nut is fixedly installed on the inner side of the lower part of the third hinge hole. The locking nut is mounted on the outer side of the upper part of the Y-shaped hinge cylinder with an inverted cross-section. An annular gasket is mounted on the inner side of the lower part of the first hinge hole, and a fifth elastic reset component is installed on the inner side of the upper part of the first hinge hole so that the inner side of the lower end of the annular gasket is abutted against the upper part of the hinge ball.

3. The recyclable pumping sealing device according to claim 1 or 2, characterized in that The detection component includes an outer tube, an upper magnetic steel, a lower magnetic steel, a coil assembly, a first connecting cable and a second connecting cable. The outer side of the upper end of the ball seat and the inner side of the lower end of the outer tube are sealed and fixed together, the upper end of the outer tube and the lower end of the joint assembly are sealed and fixed together, the inner side of the upper end of the outer tube is sleeved with a hollow upper connecting rod, an upper buffer sleeve is installed between the upper end of the upper connecting rod and the lower end of the joint assembly, an upper fixed ring platform is fixedly installed on the outer side of the upper part of the upper connecting rod, a coil sleeve is fixedly installed on the outer side of the lower part of the upper connecting rod, a coil ring groove is provided on the outer side of the middle of the coil sleeve, and seals are provided between the outer side of the coil sleeve and the inner side of the outer tube at the positions above and below the coil ring groove, a wire threading hole connected to the inner side of the coil sleeve is provided on the upper part of the coil ring groove, and a coil assembly is installed in the coil ring groove An annular upper magnetic steel is installed on the outside of the upper connecting rod corresponding to the position between the upper end of the coil sleeve and the lower end of the upper fixed ring platform, a lower connecting rod is fixedly installed on the inner side of the lower part of the coil sleeve, a lower buffer sleeve is provided between the lower end of the lower connecting rod and the upper end of the ball seat, a lower fixed ring platform is fixedly installed on the outside of the lower lower connecting rod, and an annular lower magnetic steel is installed on the outside of the lower connecting rod corresponding to the position between the lower end of the coil sleeve and the upper end of the lower fixed ring platform, the upper end of the lower magnetic steel and the lower end of the upper magnetic steel are both N poles, and a welding piece is fixed on the outside of the upper end of the upper fixed ring platform. The lower end of the joint assembly and one end of the coil assembly are electrically connected together through a first connecting cable that is sealed and passed through the interior of the upper connecting rod and the wire threading hole, and the other end of the coil assembly and the welding piece are electrically connected together through a second connecting cable.

4. The recyclable pumping seal device according to claim 3, characterized in that An upper mounting groove with an upward opening is provided at the upper end of the coil sleeve, and the lower part of the upper magnetic steel is sleeved in the upper mounting groove. A plurality of vertically penetrating mounting slots are provided at intervals along the circumference of the outer side of the upper fixed ring platform. An upper spring piece is fixedly installed in each slot, the inner side of the lower end of which abuts against the outer side of the upper part of the upper magnetic steel. The middle part of each upper spring piece protrudes outward and abuts against the inner side of the outer tube. A lower mounting groove with a downward opening is provided at the lower end of the coil sleeve, and the upper part of the lower magnetic steel is sleeved in the lower mounting groove. A first insulating sleeve is fixedly installed on the inner side of the upper end of the upper connecting rod, a wiring terminal is fixedly installed on the inner side of the first insulating sleeve, the lower end of the wiring terminal is fixedly connected to the upper end of the first connecting cable, and the upper end of the wiring terminal is in contact with the connector assembly.

5. The recyclable pumping seal device according to claim 4, characterized in that The connector assembly includes a salvage head, a middle connector, a second insulating sleeve, a pin, a jack seat and a contact. The outer side of the lower end of the middle connector is sealed and fixedly installed on the inner side of the upper end of the outer tube. The upper end of the middle connector and the lower end of the salvage head of the hollow structure are fixedly installed together. The pin is sealed and fixedly installed on the inner side of the upper part of the middle connector. The second insulating sleeve is fixedly installed on the inner side of the lower part of the middle connector corresponding to the position below the pin. The jack seat is installed on the inner side of the upper part of the second insulating sleeve. The inner side of the upper end of the jack seat and the outer side of the lower end of the pin are tightly fitted together. The contact is installed on the inner side of the lower part of the second insulating sleeve. A sixth elastic reset member is provided between the lower end of the jack seat and the contact, which can make the lower end of the contact and the upper end of the terminal abut against each other.

6. The recyclable pumping seal device according to claim 5, characterized in that The connector assembly also includes a gland sleeve, a sealing socket, a third connecting cable, a fourth connecting cable, a locking mechanism and a straightening spring piece. An outer ring groove is provided on the upper outer side of the middle connector, and a connecting sleeve arranged in half is sleeved in the outer ring groove. The upper outer side of the connecting sleeve and the inner side of the lower end of the salvaging head are fixed together. A gland is fixedly installed on the upper inner side of the middle connector, and a sealing socket is sleeved inside the gland sleeve, which is tightly sleeved together with the lower inner side and the upper outer side of the pin. A wiring sleeve is sleeved on the middle inner side of the salvaging head, and the lower end of the wiring sleeve and the sealing socket are connected through the third connecting cable. A cable sleeve is fixedly installed on the upper end of the wiring sleeve, and a fourth connecting cable is fixedly installed on the upper end of the cable sleeve. The upper end of the fourth connecting cable passes through the salvaging head and is located above the salvaging head. A locking mechanism capable of fixing the fourth connecting cable is installed on the inner side of the upper part of the salvaging head. The outer side of the salvage head is provided with an upper and lower righting groove at intervals, and an upper sliding sleeve is provided at the outer side of the upper part of the salvage head corresponding to the position of the upper righting groove. A number of upper sliding blocks that can move up and down in the upper righting groove are fixedly installed on the inner side of the upper sliding sleeve along the circumference, and an upper telescopic groove opening downward is formed between the outer side of the lower part of each upper sliding block and the inner side of the upper sliding sleeve. A lower telescopic groove opening upward is formed between the outer side of the upper part of each lower slider and the inner side of the lower sleeve corresponding to the position of the upper sliding block. A lower telescopic groove opening upward is formed between the outer side of the upper part of each lower slider and the inner side of the lower sleeve. A righting spring is inserted in each upper telescopic groove, and the lower end of each righting spring is inserted in the lower telescopic groove at the corresponding position, and the middle part of each righting spring is arched outward.

7. The recyclable pumping seal device according to claim 6, characterized in that The locking mechanism includes a first cone sleeve, a second cone sleeve, a third cone sleeve, a locking sleeve and a compression sleeve. A threaded sleeve is fixedly installed on the inner side of the upper part of the salvage head. The outer side of the lower end of the threaded sleeve and the inner side of the upper end of the first cone sleeve are fixed together. A number of anti-rotation grooves are evenly distributed along the circumference on the outer side of the middle of the first cone sleeve. An anti-rotation screw hole communicating with the inside and outside is provided on the outer side of the upper part of the salvage head corresponding to each anti-rotation groove position. An anti-rotation screw with an end located in the anti-rotation groove at the corresponding position is screwed in each anti-rotation screw hole. The inner side of the lower part of the first cone sleeve is a cone with a small top and a large bottom. The first cone sleeve A second cone sleeve is mounted on the inner side of the lower part, and the outer and inner sides of the second cone sleeve are both conical surfaces matching the inner side of the first cone sleeve. A third cone sleeve is mounted on the inner side of the second cone sleeve, and the outer side of the third cone sleeve is a conical surface matching the inner side of the second cone sleeve. Fixings whose upper ends are fixed to corresponding positions on the outer side of the fourth connecting cable are provided between the outer side of the second cone sleeve and the inner side of the first cone sleeve, and between the inner side of the second cone sleeve and the outer side of the third cone sleeve. A locking sleeve is fixedly installed on the outer side of the lower end of the first cone sleeve, and a compression sleeve whose upper end is abutted against the lower end of the third cone sleeve is installed on the inner side of the lower part of the locking sleeve.

8. The recyclable pumping seal device according to claim 7, characterized in that A fifth connecting cable is fixedly connected between the lower end of the locking sleeve and the upper end of the middle connector.

9. The recyclable pumping seal device according to claim 6, 7 or 8, characterized in that An insulating layer is provided between the outer side of the upper part of the third connecting cable and the outer side of the lower part of the fourth connecting cable, a wear-resistant base is provided on the inner side of the middle part of the righting spring, and a U-shaped wear-resistant block with an inward-opening cross-section is fixedly installed on the outer side of the wear-resistant base. A fixing hole is formed on the inner side of the wear-resistant block and the outer side of the wear-resistant base, and the outer side of the middle part of the righting spring is fixedly installed in the fixing hole.

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