CN213360070U - Short rubber sleeve soluble bridge plug - Google Patents
Short rubber sleeve soluble bridge plug Download PDFInfo
- Publication number
- CN213360070U CN213360070U CN202022429362.6U CN202022429362U CN213360070U CN 213360070 U CN213360070 U CN 213360070U CN 202022429362 U CN202022429362 U CN 202022429362U CN 213360070 U CN213360070 U CN 213360070U
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- cone
- bridge plug
- slip
- ring
- pull rod
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Abstract
The utility model discloses a soluble bridging plug of short packing element, the cone is equipped with the packing element protection in proper order along the outer cone line and fits with a contraceptive ring, the packing element, packing element protection lower ring and slips, the outer cone line right-hand member of cone is equipped with one-way atress helicitic texture in a left side, the slips surface is equipped with ceramic particle, the slips inner conical surface is equipped with one-way atress helicitic texture in the right side, the slips right-hand member is equipped with the draw-in groove structure, the slips right side is equipped with the lower part of the body, the lower part of the body right-hand member is equipped with central step hole, be equipped with the shearing ring in the central step hole, be equipped with the pull rod in the hole of shearing ring, be equipped with the shearing pin in the screw hole, the shearing pin is connected with the pull rod cooperation, the pull rod left end is equipped with the. The utility model has the advantages that: the bridge plug has short integral length, small rubber barrel ratio, large internal path of the bridge plug and quick and complete dissolution of the bridge plug.
Description
Technical Field
The utility model relates to a bridging plug technical field specifically indicates a soluble bridging plug of short packing element.
Background
The bridge plug is used as an underground plugging tool for an oil and gas field, is widely used for the layered fracturing, the layered acidification, the layered oil testing and the gas testing of the oil and gas well in the exploration and development of the oil and gas field, and is used for plugging a lower well section during construction; the bridge plug is divided into a permanent bridge plug and a removable bridge plug, and has the characteristics of less construction procedures, short period, accurate clamping and sealing positions and the like. Common bridge plugs are all made of metal materials or composite materials and are insoluble, the cost of drilling and grinding at the later stage is high, a sleeve is damaged in the drilling and grinding process, chippings are difficult to return, accidental setting in advance is difficult to treat, and the like.
At present, the mainstream soluble bridge plug in the domestic market is mostly processed according to the traditional bridge plug structure, the length is longer, the inner drift diameter is small, a large amount of sediments generated in the dissolving process are attached to the surface of the bridge plug, the dissolving speed of the bridge plug is delayed, and particularly, a rubber cylinder is difficult to dissolve or the dissolving period is long.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is, to above-mentioned problem, provide a bridge plug whole length short, glue the bucket to account for than little, the bridge plug in the latus rectum big, the bridge plug can be fast totally dissolved short rubber tube soluble bridge plug.
In order to solve the technical problem, the utility model provides a technical scheme does: a short rubber sleeve soluble bridge plug comprises a cone, wherein the cone is sequentially provided with a rubber sleeve protection upper ring, a rubber sleeve protection lower ring and a slip along an outer cone line, the right end of the outer cone line of the cone is provided with a left unidirectional stress thread structure, the outer surface of the slip is provided with ceramic particles, the rubber sleeve protection upper ring, the rubber sleeve and the rubber sleeve protection lower ring are in sliding connection with the cone, the slip is in sliding connection with the cone, the inner cone surface of the slip is provided with a right unidirectional stress thread structure, the right end of the slip is provided with a clamping groove structure, the right side of the slip is provided with a lower body, the lower body is connected with the slip through the clamping groove structure, the right end of the lower body is provided with a central step hole, a shearing ring is arranged in the central step hole, a pull rod is arranged in the inner hole of the shearing ring, a threaded hole is, the shearing pin is connected with the pull rod in a matched mode, the left end of the pull rod is provided with an external thread, the left end of the pull rod is provided with a release, the release is connected with the pull rod through the external thread, the left end of the cone is provided with a step, the outer side of the step is provided with a push cylinder, the inner surface of the left end of the release is provided with a first internal thread, and the inner surface of the left end of the push cylinder is provided with a second internal thread.
Compared with the prior art, the utility model the advantage lie in: this soluble bridge plug of short packing element shortens the whole length of bridge plug, has especially reduced the proportion of packing element to latus rectum in the increase bridge plug, area of contact of at utmost increase bridge plug and well liquid reduces the volume that the packing element was dissolved partially indissolvable, makes whole bridge plug can be quick and complete dissolution after the construction, forms complete full latus rectum pit shaft, satisfies the utility of sealed pressure-bearing.
As a refinement, the number of the ceramic particles is at least 32.
As a refinement, the number of the shear pins is at least 6.
As an improvement, a cone inner hole inclined plane is arranged in the left end of the cone, and the soluble ball is tightly attached to the cone inner hole inclined plane after being placed into the cone, so that the plugging effect is achieved.
Drawings
Fig. 1 is a cross-sectional view of the short rubber tube soluble bridge plug of the present invention.
Fig. 2 is a cross-sectional view of the connection between the soluble bridge plug of the short rubber cylinder and the releasing tool of the utility model.
Description of the drawings: 1. the device comprises a cone, 2, a rubber sleeve protection upper ring, 3, a rubber sleeve, 4, a rubber sleeve protection lower ring, 5, slips, 6, ceramic particles, 7, a lower body, 8, a shearing ring, 9, a threaded hole, 10, a clamping groove structure, 11, a right one-way stress threaded structure, 12, a left one-way stress threaded structure, 13, an outer cone line, 14, a cone inner hole inclined plane, 15, a step, 16, a pushing cylinder, 17, a releasing hand, 18, a pull rod, 19, a shearing pin, 20, an external thread, 21, an internal thread I, 22 and an internal thread II.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
With reference to the attached drawings, the short rubber sleeve soluble bridge plug comprises a cone 1, wherein the cone 1 is sequentially provided with a rubber sleeve protection upper ring 2, a rubber sleeve 3, a rubber sleeve protection lower ring 4 and a slip 5 along an outer cone line 13, the right end of the outer cone line 13 of the cone 1 is provided with a left unidirectional stressed threaded structure 12, the outer surface of the slip 5 is provided with ceramic particles 6, the rubber sleeve protection upper ring 2, the rubber sleeve 3 and the rubber sleeve protection lower ring 4 are slidably connected with the cone 1, the slip 5 is slidably connected with the cone 1, the inner conical surface of the slip 5 is provided with a right unidirectional stressed threaded structure 11, the right end of the slip 5 is provided with a clamping groove structure 10, the right side of the slip 5 is provided with a lower body 7, the lower body 7 is connected with the slip 5 through the clamping groove structure 10, the right end of the lower body 7 is provided with a central step hole, a shearing ring 8 is arranged in the, the novel shear pin is characterized in that a threaded hole 9 is formed in the shear ring 8, the threaded hole 9 is communicated with an inner hole of the shear ring 8, a shear pin 19 is arranged in the threaded hole 9, the shear pin 19 is connected with a pull rod 18 in a matched mode, an external thread 20 is arranged at the left end of the pull rod 18, a release 17 is arranged at the left end of the pull rod 18, the release 17 is connected with the pull rod 18 through the external thread 20, a step 15 is arranged at the left end of the cone 1, a push cylinder 16 is arranged on the outer side of the step 15, a first internal thread 21 is arranged on the inner surface of the left end of the release 17, and a second internal.
At least 32 ceramic particles 6 are provided.
At least 6 shear pins 19 are provided.
The left end of the cone 1 is internally provided with a cone inner hole inclined plane 14.
The utility model discloses a theory of operation: this soluble bridging plug of short packing element when using, the cone is followed the left side of the external conical surface and is turned right to be equipped with packing element protection upper ring in proper order, the packing element, packing element protection lower ring and slips, be equipped with the one-way atress helicitic texture of direction left on the cone external conical surface, be equipped with a plurality of ceramic granules through interference fit on the slips, be equipped with the one-way atress helicitic texture of direction right on the slips internal conical surface, the slips right-hand member is equipped with the draw-in groove structure, the slips right-hand member is equipped with the lower part of the body through the draw-in groove structure. A pull rod is arranged in an inner hole of the shearing ring and is fixed through a plurality of shearing pins arranged in threaded holes, a releasing part is arranged on the left side of the pull rod through threads, a pushing barrel is arranged at a step at the left end of a cone, and the releasing part and the left side of the pushing barrel are connected to a setting tool through a first internal thread and a second internal thread respectively. The thrust is generated by a setting tool, so that the push cylinder and the pull rod generate relative displacement to drive the rubber cylinder protection upper ring, the rubber cylinder protection lower ring and the slip to move leftwards along the conical surface, the rubber cylinder tightly clings to the casing wall after moving to a certain position, the ceramic particles are embedded into the casing wall after the slip is expanded, the rightward unidirectional stressed thread structure on the inner conical surface of the slip is meshed with the leftward unidirectional stressed thread structure on the conical surface of the cone, the slip and the like are prevented from moving rightwards, and then the shear pin is cut to complete the setting of the soluble bridge plug. When the soluble bridge plug works, the soluble ball is put into the inner hole of the cone, so that the soluble ball is tightly attached to the inclined plane of the inner hole of the cone, and the function of plugging is achieved.
The present invention has been described in connection with the embodiments thereof, and the description is not intended to be limiting, and the embodiments of the present invention are shown in the drawings, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (4)
1. The utility model provides a short packing element soluble bridge plug, includes the cone, its characterized in that: the cone is sequentially provided with a rubber cylinder protection upper ring, a rubber cylinder protection lower ring and a slip along an outer cone line, the right end of the outer cone line of the cone is provided with a left unidirectional stress thread structure, the outer surface of the slip is provided with ceramic particles, the rubber cylinder protection upper ring, the rubber cylinder and the rubber cylinder protection lower ring are in sliding connection with the cone, the slip is in sliding connection with the cone, the inner conical surface of the slip is provided with a right unidirectional stress thread structure, the right end of the slip is provided with a clamping groove structure, the right side of the slip is provided with a lower body, the lower body is connected with the slip through the clamping groove structure, the right end of the lower body is provided with a central step hole, a shearing ring is arranged in the central step hole, a pull rod is arranged in an inner hole of the shearing ring, a threaded hole is formed in the shearing ring and is, the left end of the pull rod is provided with external threads, the left end of the pull rod is provided with a release, the release is connected with the pull rod through the first external threads, the left end of the cone is provided with a step, the outer side of the step is provided with a push cylinder, the inner surface of the left end of the release is provided with a first internal thread, and the inner surface of the left end of the push cylinder is provided with a second internal thread.
2. A short barrel soluble bridge plug according to claim 1, wherein: at least 32 ceramic particles are provided.
3. A short barrel soluble bridge plug according to claim 1, wherein: at least 6 shear pins are provided.
4. A short barrel soluble bridge plug according to claim 1, wherein: and a cone inner hole inclined plane is arranged in the left end of the cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022429362.6U CN213360070U (en) | 2020-10-27 | 2020-10-27 | Short rubber sleeve soluble bridge plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022429362.6U CN213360070U (en) | 2020-10-27 | 2020-10-27 | Short rubber sleeve soluble bridge plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213360070U true CN213360070U (en) | 2021-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022429362.6U Active CN213360070U (en) | 2020-10-27 | 2020-10-27 | Short rubber sleeve soluble bridge plug |
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| CN (1) | CN213360070U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115012876A (en) * | 2022-07-01 | 2022-09-06 | 西南石油大学 | Small-diameter large-deformation single-slip type soluble bridge plug |
-
2020
- 2020-10-27 CN CN202022429362.6U patent/CN213360070U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115012876A (en) * | 2022-07-01 | 2022-09-06 | 西南石油大学 | Small-diameter large-deformation single-slip type soluble bridge plug |
| CN115012876B (en) * | 2022-07-01 | 2023-08-11 | 西南石油大学 | Small-diameter large-deformation single slip type soluble bridge plug |
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