CN207111041U - A kind of big orifice bridging plug - Google Patents
A kind of big orifice bridging plug Download PDFInfo
- Publication number
- CN207111041U CN207111041U CN201820048798.0U CN201820048798U CN207111041U CN 207111041 U CN207111041 U CN 207111041U CN 201820048798 U CN201820048798 U CN 201820048798U CN 207111041 U CN207111041 U CN 207111041U
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- CN
- China
- Prior art keywords
- tapered sleeve
- packing element
- bridging plug
- central tube
- upper tapered
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Abstract
The utility model belongs to oil field well field of tool, a kind of more particularly to big orifice bridging plug, including central tube, packing element and slips, packing element is sleeved on the outside of central tube, slips is by slips mounting collar around around central tube, also include upper tapered sleeve A, lower tapered sleeve A, upper tapered sleeve B, lower tapered sleeve B, set piston, jump ring and retaining set, upper tapered sleeve A, lower tapered sleeve A, upper tapered sleeve B, lower tapered sleeve B, set piston, jump ring and retaining set are sleeved on central tube, wherein, upper tapered sleeve A and lower tapered sleeve A is inserted into the both ends of packing element, the circular conical surface matched with the circular conical surface on the outside of upper tapered sleeve A and lower tapered sleeve A is provided with the inside of packing element both ends, bushing is provided with the inside of described packing element, bushing is cylinder-like structure.The utility model has carried setting mechanism and releasing gadget, can significantly shorten the length of bridging plug tool segment, thus can effectively solve the problems, such as bridging plug tool segment go into the well during clamping stagnation.
Description
Technical field
The utility model belongs to oil field well field of tool, more particularly to a kind of big orifice bridging plug.
Background technology
Bridging plug is a kind of downhole tool commonly used in oilfield process, and some layers of position of underground can be carried out by bridging plug
Long-term or permanent closure, to reach related job requirements.The structure of bridging plug generally includes packing element sealing structure and slips anchoring
Structure, bridging plug are transferred to the precalculated position of underground, make packing element by external force and slips sets and could complete bridging plug in underground
Installation.In the prior art, need to connect the special setting tool of bridging plug, setting tool and bridging plug above bridging plug when bridging plug is installed
The length of the tool segment for the composition that links into an integrated entity is longer, in easy the problem of clamping stagnation occurs during going into the well.In addition, prior art
In, the packing element in bridging plug is thicker, and the diameter of bridging plug is certain, and therefore, packing element seriously constrains the expansion of bridging plug latus rectum, enters
And limit the performance of bridging plug performance.
Utility model content
The utility model provides a kind of big orifice bridging plug, to solve the problems mentioned in the above background technology.
The technical problem that the utility model solves is realized using following technical scheme：
The utility model includes central tube, packing element and slips, and packing element is sleeved on the outside of central tube, and slips is pacified by slips
Encapsulation is fitted around around central tube, in addition to upper tapered sleeve A, lower tapered sleeve A, upper tapered sleeve B, lower tapered sleeve B, set piston, card
Spring and retaining set, upper tapered sleeve A, lower tapered sleeve A, upper tapered sleeve B, lower tapered sleeve B, set piston, jump ring and retaining set be sleeved on center
Guan Shang, wherein, upper tapered sleeve A and lower tapered sleeve A are inserted into the both ends of packing element, be provided with the inside of packing element both ends with upper tapered sleeve A and under
The circular conical surface of circular conical surface matching on the outside of tapered sleeve A, is provided with bushing, described upper tapered sleeve B and lower cone on the inside of described packing element
Set B sets up separately in the both sides up and down of slips, and the circular conical surface on the outside of upper tapered sleeve B and lower tapered sleeve B is inserted between central tube and slips, described
The upside for setting piston, jump ring and retaining set and being respectively positioned on tapered sleeve A, wherein, jump ring is axially fixed in center by clip spring seat
Guan Shang, the described upper end for setting piston and being located at retaining set, described jump ring are located at the inner side of retaining set lower end, the outside of jump ring
It is provided with the inner side of retaining set for preventing retaining from covering the retaining screw thread pair of upward return, the upper end of described big orifice bridging plug
Releasing gadget is provided with, the lower end of big orifice bridging plug is provided with ball sealer, and ball sealer is encapsulated in ball seat by spacing ring, described
Upper tapered sleeve A and lower tapered sleeve A axial gap ratio packing element set apart from the outer of big 5mm, described upper tapered sleeve A and lower tapered sleeve A
Side, which is provided with, carries out radially spacing ring-type limiting section to packing element edge.
Bushing is cylinder-like structure, is provided with least 10 axial joint-cuttings on its outer wall, adjacent two axial joint-cuttings
Incision direction is on the contrary, described upper tapered sleeve A and lower tapered sleeve A end are inserted in the inner side at bushing both ends.Described axial joint-cutting
Number is even number.The width of described axial joint-cutting is less than 0.2mm.
The beneficial effects of the utility model are：
1st, the utility model has carried setting mechanism and releasing gadget, and work need not be set using special when underground is installed
Tool, can significantly shorten the length of bridging plug tool segment, therefore can effectively solve the problems, such as bridging plug tool segment go into the well during clamping stagnation.
2nd, the utility model employs the packing element structure of uniqueness, and the packing element structure has two distinguishing features：On the one hand, glue
Cylinder can outwards swell under upper tapered sleeve A compression, set packing element, at the same time, the taper knot on upper tapered sleeve A and lower tapered sleeve A
Cause packing element is further outer to swell on the inside of structure insertion packing element so that packing element sets required elastomeric material and reduced；On the other hand, glue
Cylinder inner side is provided with bushing, and bushing can together expand outwardly in the presence of upper tapered sleeve A and lower tapered sleeve A with packing element, so as in glue
A space without the elastomeric material filling on packing element is propped up in cylinder inner side, and then further such that packing element sets required rubber
Glue material is reduced, because required elastomeric material is reduced, the thickness of packing element is reduced, therefore the latus rectum of bridging plug is expanded
Greatly.
3rd, lower end of the present utility model is provided with ball seat and ball sealer, and wherein ball sealer can be installed selectively, installation envelope
Stifled ball can shut central tube, and not installing ball sealer can open center tube passage, so as to meet different construction to bridging plug
The different demands of central passage state.Meanwhile the spacing ring for encapsulating ball sealer can also be installed selectively, spacing ring is installed
When, spacing ring plays position-limiting action to ball sealer, when not installing spacing ring, can put into and block from well head after bridging plug installs
Ball, so as to further increase the adaptability of bridging plug.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the partial enlarged drawing at A in Fig. 1；
Fig. 3 is the structural representation of bushing.
In figure：1- releasing gadgets, 2- set piston, 3- retaining sets, 4- clip spring seats, 5- jump rings, the upper tapered sleeve A of 6-, 7- packing elements,
8- bushings, tapered sleeve A, 10- central tube under 9-, the upper tapered sleeve B of 11-, 12- slips, 13- ball seats, 14- ball sealers, 15- spacing rings, 16-
Lower tapered sleeve B, 17- overvoltage hole, 18- axial directions joint-cutting, 19- ring-type limiting sections.
Embodiment
The utility model is described further below in conjunction with accompanying drawing：
The utility model includes central tube 10, packing element 7 and slips 12, and packing element 7 is sleeved on the outside of central tube 10, slips 12
By slips mounting collar around around central tube 10.It is common structure of the prior art above, it is no longer superfluous herein
State.
Described big orifice bridging plug also includes upper tapered sleeve A 6, lower tapered sleeve A 9, upper tapered sleeve B 11, lower tapered sleeve B 16, set
Piston 2, jump ring 5 and retaining set 3, upper tapered sleeve A 6, lower tapered sleeve A 9, upper tapered sleeve B 11, lower tapered sleeve B 16, set piston 2, jump ring
5 and retaining set 3 be sleeved on central tube 10, wherein, upper tapered sleeve A 6 and lower tapered sleeve A 9 are inserted into the both ends of packing element 7,
The circular conical surface matched with upper tapered sleeve A 6 and the outsides of lower tapered sleeve A 9 circular conical surface is provided with the inside of the both ends of packing element 7,
When packing element 7 is set, packing element 7 is aided in further out on the inside of the pyramidal structure insertion packing element 7 on upper tapered sleeve A6 and lower tapered sleeve A9
Protuberance.The inner side of described packing element 7 is provided with bushing 8, and bushing 8 can be in the presence of upper tapered sleeve A6 and lower tapered sleeve A9 with packing element 7
Together expand outwardly, so as to prop up a space without the elastomeric material filling on packing element 7 in the inner side of packing element 7, and then enter one
Step causes packing element 7 to set required elastomeric material and reduce.
The utility model employs the packing element structure of uniqueness, and the packing element structure has two distinguishing features：On the one hand, packing element
7 can outwards swell under upper tapered sleeve A6 compression, set packing element 7, at the same time, the taper on upper tapered sleeve A6 and lower tapered sleeve A9
The inner side of structure insertion packing element 7 causes packing element 7 is further outer to swell so that packing element 7 sets required elastomeric material and reduced；The opposing party
Face, the inner side of packing element 7 are provided with bushing 8, bushing 8 can in the presence of upper tapered sleeve A6 and lower tapered sleeve A9 with packing element 7 together to extending out
, so as to prop up a space without the elastomeric material filling on packing element 7, and then further such that packing element 7 in the inner side of packing element 7
Elastomeric material required for setting is reduced.Subtract because two above-mentioned aspect features can make packing element 7 set required elastomeric material
It is few, so the thickness of packing element 7 is reduced, the latus rectum therefore expanded of bridging plug.
Bushing 8 is cylinder-like structure, and at least 10 axial joint-cuttings 18, adjacent two axial joint-cuttings are provided with its outer wall
18 incision direction is on the contrary, described upper tapered sleeve A 6 and lower tapered sleeve A 9 end are inserted in the inner side at the both ends of bushing 8.Packing element 7 is sat
The inner side of pyramidal structure insertion bushing 8 on Feng Shi, upper tapered sleeve A6 and lower tapered sleeve A9, bushing 8 expand outwardly under the forcing of the conical surface,
And ruptured at axial joint-cutting 18, the bushing 8 after rupture is scattered, and structure, list structure are supported on the inner side of packing element 7 into strips.The gaily decorated basket
Shape structure makes bushing 8 be easier to tear structure, while ensure that list structure is evenly distributed into strips, avoids because of two adjacent bars
Gap between shape structure is excessive and causes packing element 7 to be extruded into the space on the inside of list structure.
Described upper tapered sleeve B11 and lower tapered sleeve B16 sets up separately in the both sides up and down of slips 12, upper tapered sleeve B11 and lower tapered sleeve B16
The circular conical surface in outside is inserted between central tube 10 and slips 12, and described set piston 2, jump ring 5 and retaining set 3 are respectively positioned on epicone
A6 upside is covered, wherein, jump ring 5 is axially fixed on central tube 10 by clip spring seat 4, and the described piston 2 that sets is located at retaining
The upper end of set 3, described jump ring 5 are located at the inner side that retaining covers 3 lower ends, and the inner side that the outside of jump ring 5 and retaining cover 3 is provided with use
The retaining screw thread pair of 3 upward returns is covered in preventing retaining.When setting, suppressed into central tube 10, water under high pressure is via over-pressed hole 17
Into setting the superjacent air space of piston 2, to set piston 2 descending so as to driving, and sets piston 2 and passes through retaining set 3 and promotes under upper tapered sleeve A
Packing element 7 is extruded after row, while forces slips 12 and the simultaneous setting of packing element 7.
The upper end of described big orifice bridging plug is provided with releasing gadget 1, and the utility model has carried setting mechanism and given up
Mechanism 1, underground need not use special setting tool when installing, can significantly shorten the length of bridging plug tool segment, therefore can have
Effect solve the problems, such as bridging plug tool segment go into the well during clamping stagnation.
The lower end of big orifice bridging plug is provided with ball sealer 14, and ball sealer 14 is encapsulated in ball seat 13 by spacing ring 15.This
The lower end of utility model is provided with ball seat 13 and ball sealer 14, and wherein ball sealer 14 can be installed selectively, installs ball sealer 14
Central tube 10 can be shut, not installing ball sealer 14 can open the passage of central tube 10, so as to meet different construction to bridge
Fill in the different demands of central passage state.Meanwhile the spacing ring 15 for encapsulating ball sealer 14 can also be installed selectively, installation
During spacing ring 15, spacing ring 15 plays position-limiting action to ball sealer 14, when spacing ring 15 is not installed, can after bridging plug installs from
Well head puts into ball sealer 14, so as to further increase the adaptability of bridging plug.
Setting apart from big 5mm for described upper tapered sleeve A 6 and lower tapered sleeve A 9 axial gap ratio packing element 7, both ensure that glue
Cylinder 7 sets stroke with enough, and conical section as far as possible more on epicone set A 6 and lower tapered sleeve A 9 can be made to be inserted in packing element again
Inner side, so as to farthest promote the swollen envelope of packing element.
Described upper tapered sleeve A 6 is identical with lower tapered sleeve A 9 taper, is 1：2, this taper is preferable taper, if taper
Excessive, then pyramidal structure is not easy to insert in packing element 7, if taper is too small, swollen envelope effect of the cone structure to packing element 7 is smaller, no
Beneficial to the reduction of the thickness of packing element 7.
Described upper tapered sleeve A 6 and lower tapered sleeve A 9 outside, which are provided with, carries out radially spacing ring-type limit to the edge of packing element 7
Position portion 19, ring-type limiting section 19 when packing element 7 is acted on by axial and radial force, can avoid the edge of packing element 7 from tilting.
Two interior edges up and down of the circular hole in the described center of spacing ring 15 are provided with and the ball on described ball sealer 14
The sealing surface of face matching.
The number of described axial joint-cutting 18 is even number, only in this way, could complete rapid processing by wire cutting.
The width of described axial joint-cutting 18 is less than 0.2mm, after the fragmentation of bushing 8 can be reduced to the full extent, each strip knot
Gap between structure.
Claims (4)
1. a kind of big orifice bridging plug, including central tube (10), packing element (7) and slips (12), packing element (7) are sleeved on central tube (10)
Outside, slips (12) is by slips mounting collar around around central tube (10), it is characterised in that：Described is big logical
Footpath bridging plug also includes upper tapered sleeve A (6), lower tapered sleeve A (9), upper tapered sleeve B (11), lower tapered sleeve B (16), sets piston (2), jump ring (5)
With retaining set (3), upper tapered sleeve A (6), lower tapered sleeve A (9), upper tapered sleeve B (11), lower tapered sleeve B (16), piston (2), jump ring (5) are set
It is sleeved on central tube (10) with retaining set (3), wherein, upper tapered sleeve A (6) and lower tapered sleeve A (9) are inserted into the two of packing element (7)
Hold, the circular conical surface matched with the circular conical surface on the outside of upper tapered sleeve A (6) and lower tapered sleeve A (9), institute are provided with the inside of packing element (7) both ends
Bushing (8) is provided with the inside of the packing element (7) stated, described upper tapered sleeve B (11) and lower tapered sleeve B (16) are set up separately in slips (12)
Circular conical surface on the outside of upper and lower both sides, upper tapered sleeve B (11) and lower tapered sleeve B (16) is inserted between central tube (10) and slips (12), institute
The upside for setting piston (2), jump ring (5) and retaining set (3) and being respectively positioned on tapered sleeve A (6) stated, wherein, jump ring (5) passes through jump ring
Seat (4) is axially fixed on central tube (10), the described upper end for setting piston (2) and being located at retaining set (3), described jump ring
(5) it is located at the inner side of retaining set (3) lower end, is provided with the inside of the outside of jump ring (5) and retaining set (3) for preventing retaining set
(3) the retaining screw thread pair of return, the upper end of described big orifice bridging plug are provided with releasing gadget (1) upwards, big orifice bridging plug
Lower end is provided with ball sealer (14), and ball sealer (14) is encapsulated in ball seat (13) by spacing ring (15), described upper tapered sleeve A
(6) set with the axial gap ratio packing element (7) of lower tapered sleeve A (9) apart from big 5mm, described upper tapered sleeve A (6) and lower tapered sleeve A
(9) it is provided with the outside of and radially spacing ring-type limiting section (19) is carried out to packing element (7) edge.
A kind of 2. big orifice bridging plug according to claim 1, it is characterised in that：Described bushing (8) is cylinder-like structure,
At least 10 axial joint-cuttings (18) are provided with its outer wall, the incision direction of adjacent two axial joint-cuttings (18) is on the contrary, described
Upper tapered sleeve A (6) and the end of lower tapered sleeve A (9) be inserted in the inner side at bushing (8) both ends.
A kind of 3. big orifice bridging plug according to claim 1, it is characterised in that：The number of described axial joint-cutting (18) is
Even number.
A kind of 4. big orifice bridging plug according to claim 1, it is characterised in that：The width of described axial joint-cutting (18) is small
In 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820048798.0U CN207111041U (en) | 2018-01-12 | 2018-01-12 | A kind of big orifice bridging plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820048798.0U CN207111041U (en) | 2018-01-12 | 2018-01-12 | A kind of big orifice bridging plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207111041U true CN207111041U (en) | 2018-03-16 |
Family
ID=61576401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820048798.0U Active CN207111041U (en) | 2018-01-12 | 2018-01-12 | A kind of big orifice bridging plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207111041U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965292A (en) * | 2018-01-12 | 2018-04-27 | 大庆市天德忠石油科技有限公司 | A kind of big orifice bridge plug |
-
2018
- 2018-01-12 CN CN201820048798.0U patent/CN207111041U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107965292A (en) * | 2018-01-12 | 2018-04-27 | 大庆市天德忠石油科技有限公司 | A kind of big orifice bridge plug |
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