CN117988761A - Recyclable pressure-bearing plugging test auxiliary tool - Google Patents
Recyclable pressure-bearing plugging test auxiliary tool Download PDFInfo
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- CN117988761A CN117988761A CN202410396174.8A CN202410396174A CN117988761A CN 117988761 A CN117988761 A CN 117988761A CN 202410396174 A CN202410396174 A CN 202410396174A CN 117988761 A CN117988761 A CN 117988761A
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- 238000012360 testing method Methods 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 41
- 238000004873 anchoring Methods 0.000 claims abstract description 9
- 230000002457 bidirectional effect Effects 0.000 abstract description 5
- 238000012856 packing Methods 0.000 abstract description 3
- 238000011161 development Methods 0.000 description 3
- 210000001503 joint Anatomy 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention discloses a recyclable pressure-bearing plugging test auxiliary tool, and belongs to the technical field of oilfield downhole operation packing. The recyclable pressure-bearing plugging test auxiliary tool comprises an inner central tube and a sealing part, and further comprises: the anchoring part comprises an upper slip seat and a lower slip seat, a plurality of upper slips are arranged on the side wall of the upper slip seat, the lower slip seat is connected to the outer wall of the inner central pipe, a plurality of lower slips are arranged on the lower slip seat, and the sealing part is arranged between the upper slip seat and the lower slip seat; and the driving part is connected with the plurality of upper slips and the plurality of lower slips and used for driving the plurality of upper slips and the plurality of lower slips to prop open, and the plurality of upper slips and the plurality of lower slips can be clamped on the well wall when being propped open. The recyclable pressure-bearing plugging test auxiliary tool disclosed by the invention can form a bidirectional anchoring sealing device under the action of the upper slips and the lower slips when in setting, and the auxiliary tool after setting can bear larger axial force along an oil-gas well.
Description
Technical Field
The invention relates to the technical field of oilfield downhole operation packing, in particular to a recyclable pressure-bearing plugging test auxiliary tool.
Background
Along with the gradual exhaustion of oil and gas resources and the continuous increase of energy requirements, the requirements for further development and yield increase of original oil and gas wells are higher and higher, the traditional oil and gas development technology cannot meet the requirements for modern oil and gas exploration and development, and the shallow two-open well is used as an advanced petroleum engineering technology, is widely applied to drilling operation at present, can better exert potential and improve yield, and becomes a relatively economical and effective yield increase mode. However, due to the influence of geological condition factors of the shallow stratum, leakage of the shallow second open well occurs to different degrees in the well cementation process, and the well cementation quality is seriously influenced.
The traditional scheme for improving the bearing capacity of the stratum is used for possibly creating other damages to the stratum at the upper part of the easy-to-drain region, the core components of the existing some setting devices comprise a central tube and a sealing part, when the setting device is used, the central tube and the sealing part are pushed to the position to be set of an oil-gas well, then the sealing part is driven to expand to be attached to a well wall, the stratum at the upper part of the easy-to-drain region and the stratum at the upper part of the easy-to-drain region can be segmented, the bearing capacity of the stratum at the easy-to-drain region is improved under the condition that other stratum is not lost, and the problem of well cementation leakage is solved.
However, when the conventional setting device is used for setting, the friction force between the sealing part and the oil-gas well wall is simply used for setting, so that the conventional setting device is difficult to bear large axial force along the oil-gas well, and cannot form a stable sealing structure, thereby causing insecurity setting.
Disclosure of Invention
The invention aims to overcome the problems in the prior art, and provides a recyclable pressure-bearing plugging test auxiliary tool, which can enable the whole tool to form a bidirectional anchoring sealing device during setting, and the auxiliary tool after setting can bear larger axial force along an oil-gas well, so that the working state of the whole auxiliary tool during plugging is more stable and reliable.
The invention provides a recyclable pressure-bearing plugging test auxiliary tool, which comprises an inner central tube and a sealing part, and further comprises:
The anchoring part comprises an upper slip seat and a lower slip seat, the upper slip seat is connected to the outer wall of the inner central tube in a sliding manner, a plurality of upper slips are arranged on the side wall of the upper slip seat, the lower slip seat is connected to the outer wall of the inner central tube, a plurality of lower slips are arranged on the lower slip seat, and the sealing part is arranged between the upper slip seat and the lower slip seat;
the driving part is arranged outside the inner central tube and connected with the upper slips and the lower slips, and is used for driving the upper slips and the lower slips to prop open, and the upper slips and the lower slips can be clamped on a well wall when being propped open;
The driving part comprises a sleeve, a lower cone and an upper cone, wherein the sleeve is connected outside the inner central tube in a sliding way, one end of the sleeve is connected with the upper slip seat, the sealing part is connected with the inner central tube in a sliding way, the lower cone is arranged at the lower end of the sealing part, the upper cone is arranged at the upper end of the sealing part, the upper cone and the lower cone are both connected with the outer wall of the inner central tube in a sliding way, the upper cone can be inserted between a plurality of upper slips so as to prop up a plurality of upper slips, and the lower cone can be inserted between a plurality of lower slips so as to prop up a plurality of lower slips;
the driving part further comprises an electromagnetic element and permanent magnets, wherein the permanent magnets are arranged on the side wall of the sleeve, the electromagnetic element is arranged on the side wall of the inner central tube, the electromagnetic element is electrically connected with a controller, the controller can control the electromagnetic element to generate an alternating magnetic field, and the permanent magnets move towards the direction close to the lower slip seat under the driving of the alternating magnetic field.
Preferably, the controller is electrically connected with a trigger A and a trigger B, the outer wall of the sleeve is provided with a stepped sliding groove, the outer wall of the inner central tube is provided with a sliding block, the sliding block can axially slide along the sleeve in the stepped sliding groove and circumferentially rotate around the sleeve, the trigger A and the trigger B are electrically connected with the controller, the trigger A is arranged at one end of the stepped sliding groove, the trigger B is arranged at the other end of the stepped sliding groove, when the inner central tube is rotated to be in contact with the sliding block A, a magnetic field generated by the electromagnetic element drives the sleeve to move towards a direction close to the lower slip seat until an upper cone stretches a plurality of upper slips and a lower cone stretches a plurality of lower slips, the sliding block slides to be in contact with the trigger B, and the controller controls the electromagnetic element to be powered off.
Preferably, a trigger D is arranged at one end of the stepped sliding groove close to the trigger A, a trigger C is arranged at one end of the stepped sliding groove close to the trigger B, when the sleeve is rotated to the position that the sliding block is contacted with the trigger D, the alternating magnetic field generated by the electromagnetic element drives the inner central tube to move in the direction away from the lower slip seat until the upper cone is separated from contact with a plurality of upper slips and the lower cone is separated from contact with a plurality of lower slips, the sliding block slides to be contacted with the trigger C, and the controller controls the electromagnetic element to be powered off.
Preferably, the sealing part comprises an upper lantern ring, a rubber cylinder and a lower lantern ring, wherein the upper lantern ring and the lower lantern ring are both in sliding connection outside the inner central tube, an upper cone is connected to the upper end of the upper lantern ring, the lower end of the upper lantern ring is connected with the rubber cylinder, the rubber cylinder is arranged outside the inner central tube, the rubber cylinder is connected with the upper end of the lower lantern ring, the lower cone is connected to the lower end of the lower lantern ring, and the outer wall of the rubber cylinder can be attached to a well wall when the rubber cylinder is extruded by the upper lantern ring and the lower lantern ring.
Preferably, a rubber cylinder supporting frame is arranged in the rubber cylinder and is attached to the outer wall of the inner central tube, and the rubber cylinder supporting frame is used for fixing the shape of the rubber cylinder.
Preferably, the rubber cylinder support frame comprises an upper support frame, a middle support frame and a lower support frame, wherein the upper support frame is in butt joint with the inner wall of the upper end of the rubber cylinder, the middle support frame is in butt joint with the inner wall of the middle part of the rubber cylinder, the lower support frame is in butt joint with the inner wall of the lower end of the rubber cylinder, and the upper support frame is hinged with the middle support frame and the middle support frame is hinged with the lower support frame.
Preferably, the flip-flop a, the flip-flop B, the flip-flop C, and the flip-flop D are all touch flip-flops.
Preferably, the upper slips, the lower slips, the upper cone and the lower cone have various specifications, and the upper slips, the lower slips, the upper cone and the lower cone of each specification are different in size.
Compared with the prior art, the invention has the beneficial effects that: the recyclable pressure-bearing plugging test auxiliary tool can form a bidirectional anchoring sealing device under the action of the upper slips and the lower slips when in setting, and the auxiliary tool after setting can bear larger axial force along an oil-gas well, so that the working state of the whole auxiliary tool when plugging is carried out is more stable and reliable.
The driving part of the auxiliary tool pushes the sleeve when in setting, thereby pushing the lower cone to prop up the plurality of lower slips, so that the plurality of lower slips establish a lower fulcrum on the well wall; thereby promote the cone and strut a plurality of upper slips to make a plurality of upper slips establish upper portion fulcrum on the wall of a well, thereby make the whole device form more stable two-way anchor sealing device. The driving part of the auxiliary tool can generate an alternating magnetic field, and the sleeve is automatically driven to move downwards or upwards by the alternating magnetic field, so that the working states of a plurality of upper slips and a plurality of lower slips can be automatically controlled in a narrow well, and the operability of the device is improved. Through setting up trigger A and trigger B for this appurtenance can automatic control telescopic motion when setting, thereby guarantee that a plurality of slips and a plurality of slips down can be by accurate struts to with the wall of a well joint, thereby guarantee this appurtenance more reliable and stable when setting. Through setting up trigger C and trigger D for this appurtenance can automatic control telescopic motion when deblocking, thereby guarantee that a plurality of slips and a plurality of slips down can be accurate laminating on the inner tube when deblocking, thereby enable whole appurtenance to resume the original state when deblocking.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a semi-sectional structure of the present invention;
FIG. 3 is a schematic structural view of a packing element support frame according to the present invention;
fig. 4 is a schematic structural view of the sleeve according to the present invention.
Reference numerals illustrate:
101. Inner center tube, 102, sealing portion, 103, upper slip bowl, 104, lower slip bowl, 105, upper slip, 106, lower slip, 107, driving portion, 201, sleeve, 202, lower cone, 203, upper cone, 301, electromagnetic element, 302, permanent magnet, 401, trigger A,402, trigger B,403, stepped chute, 404, slider, 501, trigger D,502, trigger C,601, upper collar, 602, glue bowl, 603, lower collar, 7, glue bowl support, 801, upper support, 802, intermediate support, 803.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to fig. 1-4, but it should be understood that the scope of the invention is not limited by the specific embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 4, the recoverable pressure-bearing plugging test auxiliary tool provided by the invention comprises an inner central tube 101 and a sealing part 102, and further comprises: the anchoring part comprises an upper slip seat 103 and a lower slip seat 104, wherein the upper slip seat 103 is slidably connected to the outer wall of the inner central tube 101, a plurality of upper slips 105 are arranged on the side wall of the upper slip seat 103, the lower slip seat 104 is connected to the outer wall of the inner central tube 101, a plurality of lower slips 106 are arranged on the lower slip seat 104, and a sealing part 102 is arranged between the upper slip seat 103 and the lower slip seat 104; the driving part 107 is disposed outside the inner central pipe 101, the driving part 107 is connected with the upper slips 105 and the lower slips 106, the driving part 107 is used for driving the upper slips 105 and the lower slips 106 to open, and the upper slips 105 and the lower slips 106 can be clamped on the well wall when being opened.
When the tool is used, the setting process is as follows: the tool is connected to the lower end of the pipe column, the whole tool is pushed to move downwards along the oil and gas well wall, and when the tool moves downwards to the setting depth, the driving part 107 is used for driving the upper slips 105 and the lower slips 106 to open. The upper slips 105 are opened and then supported on the well wall above the sealing part 102, the lower slips 106 are opened and then supported on the well wall below the sealing part 102, then the sealing part 102 is utilized to seal the gap between the outer wall of the inner central pipe 101 and the well wall, the whole tool forms a bidirectional anchoring sealing device under the action of the upper slips 105 and the lower slips 106, and after setting, the auxiliary tool can bear the pressure from the upper part or the lower part no matter the auxiliary tool is under, so that the working state of the whole auxiliary tool is more stable and reliable when the leakage is blocked. In the deblocking process, the driving part 107 is controlled to be separated from contact with the upper slips 105 and the lower slips 106, and the upper slips 105 and the lower slips 106 are folded, so that the locking of the position of the whole auxiliary tool on the well wall is released.
As shown in fig. 1 and 2, the driving part 107 includes a sleeve 201, a lower cone 202 and an upper cone 203, where the sleeve 201 is slidably connected to the outside of the inner central tube 101, one end of the sleeve 201 is connected to the upper slip seat 103, the sealing part 102 is slidably connected to the inner central tube 101, the lower cone 202 is disposed at the lower end of the sealing part 102, the upper cone 203 is disposed at the upper end of the sealing part 102, the upper cone 203 and the lower cone 202 are slidably connected to the outer wall of the inner central tube 101, the upper cone 203 can be inserted between the upper slips 105, so as to expand the upper slips 105, and the lower cone 202 can be inserted between the lower slips 106, so as to expand the lower slips 106.
When setting, the sleeve 201 is pushed, so that the sleeve 201 slides downwards along the axial direction of the inner central tube 101, the sleeve 201 drives the upper slip seat 103 to slide downwards, the upper slip seat 103 drives the upper slips 105 to move downwards until the upper slips 105 are contacted with the upper cone 203, and the upper slips 105 push the sealing part 102 to move downwards through the upper cone 203 until the lower cone 202 connected below the sealing part 102 is contacted with the lower slips 106. As the sleeve 201 continues to move down, the lower cone 202 spreads the plurality of lower slips 106, thereby causing the plurality of lower slips 106 to establish a lower fulcrum on the borehole wall. The upper cone 203 struts the plurality of upper slips 105 so that the plurality of upper slips 105 establish an upper pivot point on the borehole wall, thereby allowing the entire assembly to form a more stable bi-directional anchored seal.
As shown in fig. 1 and 2, the driving portion 107 further includes an electromagnetic element 301 and a permanent magnet 302, the permanent magnet 302 is disposed on a side wall of the sleeve 201, the electromagnetic element 301 is disposed on a side wall of the inner central tube 101, the electromagnetic element 301 is electrically connected with a controller, the controller can control the electromagnetic element 301 to generate an alternating magnetic field, and the plurality of permanent magnets 302 move towards a direction approaching the lower slip seat 104 under the driving of the alternating magnetic field. When the auxiliary tool is set, the controller is used for electrifying the electromagnetic element 301, so that the electromagnetic element 301 works to generate a magnetic field, the metal inner central tube 101 is magnetized, the magnetized inner central tube 101 becomes a magnet, and the magnetic pole of the magnetic field formed by the inner central tube 101 is controlled by changing the direction of current. The magnetic field formed by the inner center tube 101 generates a repulsive force downward along the inner center tube 101 to the permanent magnets 302 arrayed in the sleeve 201, thereby pushing the sleeve 201 to slide downward with respect to the inner center tube 101. When the auxiliary tool is used for deblocking, the direction of current in the electromagnetic element 301 is controlled, so that a magnetic field formed by the inner central tube 101 generates an upward repulsive force on the permanent magnets 302 distributed in an array in the sleeve 201 along the inner central tube 101, and the sleeve 201 is pushed to slide upwards relative to the inner central tube 101, so that deblocking is completed. The driving part 107 of the auxiliary tool can generate an alternating magnetic field, and automatically drive the sleeve 201 to move downwards or upwards through the alternating magnetic field, so that the working states of the upper slips 105 and the lower slips 106 can be automatically controlled in a narrow well, and the operability of the device is improved.
The recyclable pressure-bearing plugging test auxiliary tool can form a bidirectional anchoring sealing device under the action of the upper slips 105 and the lower slips 106 when in setting, and the auxiliary tool after setting can bear larger axial force along an oil-gas well, so that the working state of the whole auxiliary tool when plugging is carried out is more stable and reliable.
As a preferred solution, as shown in fig. 1,2 and 4, the controller is electrically connected with a trigger a401 and a trigger B402, a stepped sliding groove 403 is formed on the outer wall of the sleeve 201, a sliding block 404 is formed on the outer wall of the inner central tube 101, the sliding block 404 can slide axially along the sleeve 201 and rotate circumferentially around the sleeve 201 in the stepped sliding groove 403, the trigger a401 and the trigger B402 are electrically connected with the controller, the trigger a401 is disposed at one end of the stepped sliding groove 403, the trigger B402 is disposed at the other end of the stepped sliding groove 403, when the inner central tube 101 is rotated until the sliding block 404 contacts the trigger a401, the magnetic field generated by the electromagnetic element 301 drives the sleeve 201 to move towards the direction approaching the lower slip seat 104 until the upper cone 203 expands the upper slips 105 and the lower cone 202 expands the lower slips 106, the sliding block 404 slides to contact the trigger B402, and the controller controls the electromagnetic element 301 to cut off. When the auxiliary tool is used for setting, the inner central tube 101 is rotated in the forward direction, the inner central tube 101 drives the sliding blocks 404 to slide in the stepped sliding grooves 403, when the sliding blocks 404 are in contact with the trigger A401, the trigger A401 sends a signal to the controller, the controller controls the magnetic field generated by the electromagnetic element 301 to drive the sleeve 201 to move towards the direction close to the lower slip seat 104, so that the upper cone 203 is driven to be inserted between the upper slips 105, the lower cone 202 is driven to be inserted between the lower cones 202, and until the upper cone 203 supports the upper slips 105 and the lower cone 202 supports the lower slips 106, the sliding blocks 404 slide to be in contact with the trigger B402, and the controller controls the electromagnetic element 301 to be powered off and the sleeve 201 to stop moving. Through setting up trigger A401 and trigger B402 for this appurtenance can the motion of automatic control sleeve 201 when setting, thereby guarantee that a plurality of upper slips 105 and a plurality of lower slips 106 can be by accurate struts to the wall of a well joint, thereby guarantee this appurtenance more reliable and stable when setting.
As a preferred solution, as shown in fig. 1,2 and 4, one end of the stepped sliding groove 403, which is close to the trigger a401, is provided with a trigger D501, one end of the stepped sliding groove 403, which is close to the trigger B402, is provided with a trigger C502, when the sleeve 201 is rotated until the slide block 404 contacts the trigger D501, the alternating magnetic field generated by the electromagnetic element 301 drives the inner central tube 101 to move away from the lower slip bowl 104 until the upper cone 203 is out of contact with the upper slips 105 and the lower cone 202 is out of contact with the lower slips 106, the slide block 404 slides to contact with the trigger C502, and the controller controls the electromagnetic element 301 to be powered off. When the auxiliary tool is used for deblocking, the inner central tube 101 is reversely rotated, the inner central tube 101 drives the sliding blocks 404 to slide in the stepped sliding grooves 403, when the sliding blocks 404 are in contact with the trigger C502, the trigger C502 sends a signal to the controller, the controller controls the magnetic field generated by the electromagnetic element 301 to drive the sleeve 201 to move away from the lower slip seat 104, so that the upper cone 203 is driven to be pulled out from among the upper slips 105, the lower cone 202 is driven to be pulled out from among the lower cones 202, the upper slips 105 are contracted, the upper supporting points disappear, the lower slips 106 are separated from the lower cones 202 to be contracted, and the lower supporting points disappear. Until the upper cone 203 is completely disengaged from the plurality of upper slips 105 and the lower cone 202 is completely disengaged from the plurality of lower slips 106, the slider 404 slides into contact with the trigger D501, and the controller controls the solenoid 301 to de-energize and the sleeve 201 to stop moving. Through setting up trigger C502 and trigger D501 for this appurtenance can the motion of automatic control sleeve 201 when deblocking, thereby guarantee that a plurality of upper slips 105 and a plurality of lower slips 106 can be accurate laminating on inner tube 101 when deblocking, thereby can make whole appurtenance resume the original state when deblocking.
As a preferred solution, as shown in fig. 1 and 2, the sealing portion 102 includes an upper collar 601, a rubber sleeve 602 and a lower collar 603, where the upper collar 601 and the lower collar 603 are both slidably connected to the outside of the inner central tube 101, the upper cone 203 is connected to the upper end of the upper collar 601, the lower end of the upper collar 601 is connected to the rubber sleeve 602, the rubber sleeve 602 is disposed outside the inner central tube 101, the rubber sleeve 602 is connected to the upper end of the lower collar 603, the lower cone 202 is connected to the lower end of the lower collar 603, and when the rubber sleeve 602 is extruded by the upper collar 601 and the lower collar 603, the outer wall of the rubber sleeve 602 can be adhered to the well wall. When the auxiliary tool is used for setting, when the sleeve 201 slides downwards along the inner central tube 101, extrusion force is applied to the sealing part 102, the upper sleeve ring 601 and the lower sleeve ring 603 are close to each other, so that the rubber cylinder 602 arranged outside the inner central tube 101 is extruded, when the rubber cylinder 602 is extruded, the outer wall of the rubber cylinder 602 and the outer wall of the lower sleeve ring 603 can be attached to a well wall, and therefore a gap between the outer wall of the inner central tube 101 and the well wall can be sealed.
As a preferred solution, as shown in fig. 1 and 2, a rubber support frame 7 is disposed in the rubber 602, the rubber support frame 7 is attached to the outer wall of the inner central tube 101, and the rubber support frame 7 is used for fixing the shape of the rubber 602. When the sealing part 102 is extruded, the extrusion force towards the well wall is applied to the rubber cylinder 602 by the rubber cylinder support frame 7, so that the outer wall of the rubber cylinder 602 is tightly attached to the well wall, and the sealing performance of the device during setting is improved.
As a preferred solution, as shown in fig. 1-3, the rubber cylinder supporting frame 7 includes an upper supporting frame 801, a middle supporting frame 802 and a lower supporting frame 803, the upper supporting frame 801 is abutted against the inner wall of the upper end of the rubber cylinder 602, the middle supporting frame 802 is abutted against the inner wall of the middle of the rubber cylinder 602, the lower supporting frame 803 is abutted against the inner wall of the lower end of the rubber cylinder 602, and the upper supporting frame 801 is hinged with the middle supporting frame 802 and the middle supporting frame 802 is hinged with the lower supporting frame 803. Normally, the upper support 801, the middle support 802, and the lower support 803 are attached to the outer wall of the inner central tube 101. When the sealing part 102 is extruded, the upper support 801 and the lower support 803 are close to each other, the upper support 801 rotates relative to the middle support 802, and the lower support 803 rotates relative to the middle support 802, so that the middle support 802 is far away from the inner center tube 101, and the middle support 802 moves towards the well wall, so that the rubber cylinder 602 is extruded onto the well wall, and setting is completed.
As a preferred embodiment, as shown in fig. 4, the flip-flop a401, the flip-flop B402, the flip-flop C502, and the flip-flop D501 are all touch flip-flops.
As a preferred embodiment, as shown in fig. 1 and 2, the upper slip 105, the lower slip 106, the upper cone 203 and the lower cone 202 have various specifications, and the sizes of the upper slip 105, the lower slip 106, the upper cone 203 and the lower cone 202 are different from each other. By providing multiple gauges of upper slips 105, lower slips 106, upper cone 203 and lower cone 202, different sizes of upper slips 105, lower slips 106, upper cone 203 and lower cone 202 for each gauge can be used to set wells of different diameters.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. Recoverable pressure-bearing plugging test appurtenance, including inner central tube (101) and sealing part (102), its characterized in that still includes:
the anchoring part comprises an upper slip seat (103) and a lower slip seat (104), wherein the upper slip seat (103) is connected to the outer wall of the inner central tube (101) in a sliding manner, a plurality of upper slips (105) are arranged on the side wall of the upper slip seat (103), the lower slip seat (104) is connected to the outer wall of the inner central tube (101), a plurality of lower slips (106) are arranged on the lower slip seat (104), and a sealing part (102) is arranged between the upper slip seat (103) and the lower slip seat (104);
the driving part (107) is arranged outside the inner central tube (101), the driving part (107) is connected with the plurality of upper slips (105) and the plurality of lower slips (106), the driving part (107) is used for driving the plurality of upper slips (105) and the plurality of lower slips (106) to be opened, and the plurality of upper slips (105) and the plurality of lower slips (106) can be clamped on a well wall when being opened;
The driving part (107) comprises a sleeve (201), a lower cone (202) and an upper cone (203), wherein the sleeve (201) is connected outside the inner central tube (101) in a sliding manner, one end of the sleeve (201) is connected with the upper slip seat (103), the sealing part (102) is connected with the inner central tube (101) in a sliding manner, the lower cone (202) is arranged at the lower end of the sealing part (102), the upper cone (203) is arranged at the upper end of the sealing part (102), the upper cone (203) and the lower cone (202) are both connected with the outer wall of the inner central tube (101) in a sliding manner, the upper cone (203) can be inserted between a plurality of upper slips (105) so as to prop open the upper slips (105), and the lower cone (202) can be inserted between a plurality of lower slips (106) so as to prop open the lower slips (106);
The driving part (107) further comprises an electromagnetic element (301) and permanent magnets (302), the permanent magnets (302) are arranged on the side wall of the sleeve (201), the electromagnetic element (301) is arranged on the side wall of the inner central tube (101), the electromagnetic element (301) is electrically connected with a controller, the controller can control the electromagnetic element (301) to generate an alternating magnetic field, and under the driving of the alternating magnetic field, the permanent magnets (302) move towards the direction close to the lower slip seat (104).
2. The recoverable pressure-bearing plugging test auxiliary tool according to claim 1, wherein the controller is electrically connected with a trigger a (401) and a trigger B (402), a stepped chute (403) is arranged on the outer wall of the sleeve (201), a sliding block (404) is arranged on the outer wall of the inner central tube (101), the sliding block (404) can slide axially along the sleeve (201) and rotate circumferentially around the sleeve (201) in the stepped chute (403), the trigger a (401) and the trigger B (402) are electrically connected with the controller, the trigger a (401) is arranged at one end of the stepped chute (403), the trigger B (402) is arranged at the other end of the stepped chute (403), and when the inner central tube (101) is rotated until the sliding block (404) is contacted with the trigger a (401), a magnetic field generated by the electromagnetic element (301) drives the sleeve (201) to move towards a direction close to the lower slip seat (104) until the upper slips (105) are opened by the upper slips (203) and the lower slips (202) are opened by the lower slips (202), and the electromagnetic element (301) is electrically contacted with the trigger B (402).
3. The recyclable pressure-bearing plugging test auxiliary tool according to claim 2, wherein a trigger D (501) is arranged at one end of the stepped sliding groove (403) close to the trigger a (401), a trigger C (502) is arranged at one end of the stepped sliding groove (403) close to the trigger B (402), when the sleeve (201) is rotated until the sliding block (404) contacts the trigger D (501), the alternating magnetic field generated by the electromagnetic element (301) drives the inner central tube (101) to move away from the lower slip seat (104) until the upper cone (203) is out of contact with the upper slips (105) and the lower cone (202) is out of contact with the lower slips (106), and the controller controls the electromagnetic element (301) to be powered off.
4. The recyclable pressure-bearing plugging test auxiliary tool according to claim 1, wherein the sealing part (102) comprises an upper sleeve ring (601), a rubber cylinder (602) and a lower sleeve ring (603), the upper sleeve ring (601) and the lower sleeve ring (603) are both in sliding connection with the outside of the inner central tube (101), an upper cone (203) is connected with the upper end of the upper sleeve ring (601), the lower end of the upper sleeve ring (601) is connected with the rubber cylinder (602), the rubber cylinder (602) is arranged outside the inner central tube (101), the rubber cylinder (602) is connected with the upper end of the lower sleeve ring (603), the lower cone (202) is connected with the lower end of the lower sleeve ring (603), and the outer wall of the rubber cylinder (602) can be attached to a well wall when the rubber cylinder (602) is extruded by the upper sleeve ring (601) and the lower sleeve ring (603).
5. The recyclable pressure-bearing plugging test auxiliary tool according to claim 4, wherein a rubber support frame (7) is arranged in the rubber (602), the rubber support frame (7) is attached to the outer wall of the inner central tube (101), and the rubber support frame (7) is used for fixing the shape of the rubber (602).
6. The recyclable pressure-bearing plugging test auxiliary tool according to claim 5, wherein the rubber tube support frame (7) comprises an upper support frame (801), a middle support frame (802) and a lower support frame (803), the upper support frame (801) is abutted against the inner wall of the upper end of the rubber tube (602), the middle support frame (802) is abutted against the inner wall of the middle of the rubber tube (602), the lower support frame (803) is abutted against the inner wall of the lower end of the rubber tube (602), and the upper support frame (801) is hinged with the middle support frame (802) and the middle support frame (802) is hinged with the lower support frame (803).
7. A recyclable pressure-bearing plugging test auxiliary tool according to claim 3, wherein the trigger a (401), the trigger B (402), the trigger C (502) and the trigger D (501) are all touch triggers.
8. The recyclable pressure-bearing plugging test auxiliary tool according to claim 1, wherein the upper slips (105), the lower slips (106), the upper cone (203) and the lower cone (202) have a plurality of specifications, and the sizes of the upper slips (105), the lower slips (106), the upper cone (203) and the lower cone (202) are different from each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN117988761B (en) | 2024-06-25 |
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