CN215672128U - Subminiature soluble bridge plug assembly - Google Patents
Subminiature soluble bridge plug assembly Download PDFInfo
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- CN215672128U CN215672128U CN202120396563.2U CN202120396563U CN215672128U CN 215672128 U CN215672128 U CN 215672128U CN 202120396563 U CN202120396563 U CN 202120396563U CN 215672128 U CN215672128 U CN 215672128U
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- centrum
- slips
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- 238000007906 compression Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims 4
- 230000006978 adaptation Effects 0.000 claims 1
- 238000002788 crimping Methods 0.000 claims 1
- 238000001125 extrusion Methods 0.000 abstract description 11
- 238000007789 sealing Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 4
- 230000003139 buffering effect Effects 0.000 abstract description 3
- 239000003292 glue Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 7
- 238000005452 bending Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000003721 gunpowder Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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Abstract
The utility model discloses a subminiature soluble bridge plug assembly which comprises a central tube, a first-stage slip, a first-stage cone, a soluble rubber cylinder, a second-stage cone, a second-stage slip and guide shoes, wherein the soluble rubber cylinder is sleeved at the central part of the central tube, arc-shaped bulges are arranged at two ends of the outer edge of the soluble rubber cylinder, and cone grooves of the first-stage cone and the second-stage cone support the arc-shaped bulges so as to clamp and sleeve the soluble rubber cylinder in the middle, so that the soluble rubber barrel cannot be extruded and damaged from an annular space between the cone and the central tube through extrusion, and the integral stable sealing performance of the soluble rubber barrel is ensured; one-level centrum and second grade centrum other end cup joint respectively in one-level slips and second grade slips inner and joint in the protruding tooth group of the formula of buckling, the protruding tooth group of the formula of buckling can play fixed and support one, the effect of second grade centrum, play the buffering centrum to extrusion force in the slips for the slips can not produce the deformation, guarantees the overall sealing nature, has retrencied soluble bridging plug structure simultaneously, and is faster when making the later stage dissolve, the cost is greatly reduced also.
Description
Technical Field
The utility model relates to the technical field of soluble bridge plugs, in particular to a subminiature soluble bridge plug assembly.
Background
The dissolvable bridge plug is a novel bridge plug technology developed based on a fast drilling fracturing bridge plug, is suitable for technologies of horizontal well pumping fracturing, temporary plugging of oil and gas wells and the like, has complex structural design and high cost, the soluble glue barrel is damaged by extrusion from the annular space between the cone body and the central tube, the problem of extrusion from the annular space of the soluble glue barrel by adding a C-shaped support ring in the prior art is solved, but the C-shaped support ring has high cost, the whole weight of the structure is increased after the C-shaped support ring is additionally arranged, the difficulty of the whole construction is increased, simultaneously C type support ring also can increase the extrusion force to one-level centrum and second grade centrum for centrum one end is cup jointed in the slips in the time rather than producing the extrusion, can make the slips produce for a long time and warp, influence the leakproofness, consequently, need to solve a urgent need that technical staff in the art designs a novel soluble bridging plug subassembly.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that the soluble glue barrel is clamped and sleeved in the middle by supporting the arc-shaped bulges through the cone grooves of the first-level cone and the second-level cone, so that the soluble glue barrel cannot be extruded and damaged from an annular space between the cones and a central pipe through extrusion, and the stable sealing property of the whole soluble glue barrel is ensured; one-level centrum and second grade centrum other end cup joint respectively in one-level slips and second grade slips inner and joint in the protruding tooth group of the formula of buckling, the protruding tooth group of the formula of buckling can play fixed and support one, the effect of second grade centrum, play the buffering centrum to extrusion force in the slips, make the slips can not produce the deformation, guarantee the bulk seal nature, retrencied soluble bridging plug structure simultaneously, it is quicker when making the later stage dissolve, the subminiature soluble bridging plug subassembly of the cost that has also greatly reduced.
In order to solve the problems, the utility model provides a subminiature soluble bridge plug assembly which comprises a central tube, a first-stage slip, a first-stage cone, a soluble rubber cylinder, a second-stage cone, a second-stage slip and a guide shoe, wherein the soluble rubber cylinder is sleeved at the central part of the central tube, arc-shaped bulges are arranged at two ends of the outer edge of the soluble rubber cylinder, the first-stage cone and the second-stage cone are respectively pressed at two ends of the soluble rubber cylinder, cone grooves are respectively formed at the inner ends of the first-stage cone and the second-stage cone, the arc-shaped bulges are matched with the cone grooves, a first-stage slip and a second-stage slip are respectively arranged at one end of the first-stage cone and one end of the second-stage cone, the first-stage slip and the second-stage slip are both of an integral structure, bent convex tooth block groups are arranged at the inner ends of the first-stage slip and the second-stage cone, the other ends of the first-stage cone and the second-stage slip are respectively sleeved at the inner ends of the first-stage slip and the bent convex tooth group, one end of the central tube is provided with a guide shoe and is connected with the central tube in a rotary separating way.
Preferably, the outer wall of one end of the central tube is provided with a threaded protrusion, the inner edge of the guide shoe is provided with a threaded groove, and the threaded protrusion is sleeved in the threaded groove and connected in a rotating separation mode.
Preferably, the inner end of the central tube is provided with a ball seat.
Preferably, the inner end of the soluble rubber cylinder is provided with a yielding inner groove seat.
Preferably, a compression ring is sleeved on the central pipe and arranged at one end of the primary slip.
Adopt above-mentioned structure, its beneficial effect lies in:
the two ends of the outer edge of the soluble rubber barrel are provided with the arc-shaped bulges, the two ends of the soluble rubber barrel are respectively connected with the first-level cone and the second-level cone in a pressing mode, the inner ends of the first-level cone and the second-level cone are respectively provided with the cone groove, the arc-shaped bulges are matched with the cone grooves, and the arc-shaped bulges can be supported by the cone grooves of the first-level cone and the second-level cone so as to clamp and sleeve the soluble rubber barrel in the middle, so that the soluble rubber barrel cannot be extruded and damaged from an annular space between the cones and a central pipe through extrusion, and the stable sealing performance of the whole soluble rubber barrel is ensured; one-level centrum and second grade centrum one end are equipped with one-level slips and second grade slips respectively, one-level slips and second grade slips inner are equipped with the protruding tooth group of bending type, one-level centrum and second grade centrum other end cup joint respectively in one-level slips and second grade slips inner and joint in the protruding tooth group of bending type, the protruding tooth group of bending type can play fixedly and support one, the effect of second grade centrum, play the extrusion force of buffering centrum in to the slips, make the slips can not produce and warp, guarantee the overall sealing nature, the soluble bridging plug structure has been retrencied simultaneously, it is faster when making the later stage dissolve, the cost is also greatly reduced.
The inner end of the soluble glue cylinder is provided with the yielding inner groove seat which can wrap the soluble glue barrel, and the soluble glue barrel plays a role in supporting the glue cylinder when expanding; the guide shoe is arranged at one end of the central tube and is connected with the central tube in a rotating and separating way, the thread bulge is arranged on the outer wall at one end of the central tube, the thread groove is formed in the inner edge of the guide shoe, and the thread bulge is sleeved in the thread groove and is connected in a rotating and separating way, so that the connection fixity of the central tube and the guide shoe can be effectively ensured, and the installation and the disassembly are convenient; one-level centrum and second grade centrum one end are equipped with one-level slips and second grade slips respectively, and one-level slips and second grade slips are integral structure, and integral more stable than original split type structure (8 blocks of calorie tiles promptly, two hoops) structure has guaranteed the machining precision, has simplified the equipment flow simultaneously, and the bridging plug construction phase is safe and reliable more, and the setting anchoring effect improves.
Drawings
Fig. 1 is an assembly view of a subminiature soluble bridge plug assembly of the present invention.
Fig. 2 is a schematic diagram of the internal structure of a subminiature soluble bridge plug assembly in accordance with the present invention.
In the figure: 1-central tube, 2-primary slips, 3-primary cone, 4-soluble rubber cylinder, 5-secondary cone, 6-secondary slips, 7-guide shoe, 8-arc bulge, 9-cone groove, 10-bending type bulge tooth block group, 11-thread bulge, 12-thread groove, 13-ball seat, 14-abdicating inner groove seat and 15-compression ring.
Detailed Description
The utility model is further explained below with reference to the figures and examples.
A subminiature soluble bridge plug assembly comprises a central tube 1, a first-level slip 2, a first-level cone 3, a soluble rubber cylinder 4, a second-level cone 5, a second-level slip 6 and a guide shoe 7, wherein the central tube 1 is sleeved with the soluble rubber cylinder 4, arc protrusions 8 are arranged at two ends of the outer edge of the soluble rubber cylinder 4, the first-level cone 3 and the second-level cone 5 are respectively connected at two ends of the soluble rubber cylinder 4 in a pressing mode, cone grooves 9 are respectively formed in the inner ends of the first-level cone 3 and the second-level cone 5, the arc protrusions 8 are in adaptive arrangement with the cone grooves 9, the first-level cone 3 and the second-level cone 5 are respectively provided with the first-level slip 2 and the second-level slip 6, the first-level slip 2 and the second-level slip 6 are both of an integral structure, the inner ends of the first-level slip 2 and the second-level slip 6 are respectively provided with a bent convex tooth group 10, the other ends of the first-level cone 3 and the second-level cone 5 are respectively connected in the bent convex tooth group 10, one end of the central tube 1 is provided with a guide shoe 7 and is connected with the central tube in a rotary separating way.
The outer wall of one end of the central tube 1 is provided with a thread protrusion 11, the inner edge of the guide shoe 7 is provided with a thread groove 12, and the thread protrusion 11 is sleeved on the thread groove 12 and is connected in a rotating and separating mode.
The inner end of the central tube 1 is provided with a ball seat 13. The inner end of the soluble rubber cylinder 4 is provided with an abdicating inner groove seat 14.
The central pipe 1 is sleeved with a compression ring 15, and the compression ring 15 is arranged at one end of the first-stage slip 2.
In order to facilitate understanding of the above-described embodiments of the present invention, the following detailed description will be given of the above-described embodiments of the present invention in a specific manner of use.
1-central tube, 2-primary slips, 3-primary cone, 4-soluble rubber cylinder, 5-secondary cone, 6-secondary slips, 7-guide shoe, 8-arc bulge, 9-cone groove, 10-bending type bulge tooth block group, 11-thread bulge, 12-thread groove, 13-ball seat, 14-abdicating inner groove seat and 15-compression ring.
The specific working process is as follows: firstly, a ball seat 13 is installed through a hydraulic or ignition setting tool, the ball seat 13 and the setting tool are driven to be hydraulically and gunpowder type to be installed through a bridge plug adapter which comprises a push cylinder, a pull rod and an inner conversion joint in a row connection mode, a first-stage slip 2 and a second-stage slip 6 can prevent the bridge plug from deviating after being set, a bent type convex tooth block group 10 in the first-stage slip 2 and the second-stage slip 6 fixes and supports a first-stage cone body and a second-stage cone body, the extrusion force of the cone bodies on the slips is buffered, an arc-shaped bulge 8 of a soluble rubber cylinder 4 is clamped by a cone groove 9 of the first-stage cone body 3 and the second-stage cone body 5, so that the soluble rubber cylinder 4 is clamped in the middle, the soluble rubber cylinder 4 is prevented from being extruded towards two ends and damaged from an annular space between the first-stage cone body 3 and the second-stage cone body 5, a pore canal is sealed by the soluble rubber cylinder 4 and the first-stage cone body 3 and the second-stage cone body 5, and the bridge plug is safely conveyed to a designated position, and then fracturing construction is carried out, and the soluble fracturing balls are dissolved automatically after the fracturing construction is finished.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It is to be noted that, in the present invention, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The utility model provides a soluble bridging plug subassembly of subminiature, includes center tube (1), one-level slips (2), one-level centrum (3), soluble packing element (4), second grade centrum (5), second grade slips (6) and guide shoe (7), its characterized in that: the central tube (1) central part is located to soluble packing element (4) cover, soluble packing element (4) outer fringe both ends are equipped with arc arch (8), the crimping has one-level centrum (3) and second grade centrum (5) respectively at soluble packing element (4) both ends, centrum recess (9) have all been seted up to one-level centrum (3) and second grade centrum (5) inner, arc arch (8) are the adaptation setting with centrum recess (9), one-level centrum (3) and second grade centrum (5) one end are equipped with one-level slips (2) and second grade slips (6) respectively, one-level slips (2) and second grade slips (6) are integral structure, one-level slips (2) and second grade slips (6) inner is equipped with crooked formula protruding tooth block group (10), one-level centrum (3) and second grade centrum (5) other end cup joint respectively in one-level slips (2) and second grade slips (6) inner and joint in crooked formula protruding tooth block group (10), one end of the central tube (1) is provided with a guide shoe (7) and is connected with the central tube in a rotary separating way.
2. The subminiature soluble bridge plug assembly of claim 1, wherein: the outer wall of one end of the central pipe (1) is provided with a thread protrusion (11), the inner edge of the guide shoe (7) is provided with a thread groove (12), and the thread protrusion (11) is sleeved on the thread groove (12) and connected in a rotating and separating manner.
3. The subminiature soluble bridge plug assembly of claim 1, wherein: the inner end of the central tube (1) is provided with a ball seat (13).
4. The subminiature soluble bridge plug assembly of claim 1, wherein: the inner end of the soluble rubber cylinder (4) is provided with an abdicating inner groove seat (14).
5. The subminiature soluble bridge plug assembly of claim 1, wherein: the central pipe (1) is sleeved with a compression ring (15), and the compression ring (15) is arranged at one end of the first-stage slip (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120396563.2U CN215672128U (en) | 2021-02-23 | 2021-02-23 | Subminiature soluble bridge plug assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120396563.2U CN215672128U (en) | 2021-02-23 | 2021-02-23 | Subminiature soluble bridge plug assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215672128U true CN215672128U (en) | 2022-01-28 |
Family
ID=79968657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120396563.2U Expired - Fee Related CN215672128U (en) | 2021-02-23 | 2021-02-23 | Subminiature soluble bridge plug assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215672128U (en) |
-
2021
- 2021-02-23 CN CN202120396563.2U patent/CN215672128U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |