CN205370502U - Wedge -type seal ware - Google Patents
Wedge -type seal ware Download PDFInfo
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- CN205370502U CN205370502U CN201521143205.1U CN201521143205U CN205370502U CN 205370502 U CN205370502 U CN 205370502U CN 201521143205 U CN201521143205 U CN 201521143205U CN 205370502 U CN205370502 U CN 205370502U
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- wedge
- ring packing
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- ware
- cone
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Abstract
The utility model provides a wedge -type seal ware, its characterized in that: sealed ware body in placing the pit shaft in and the ring cover ring packing wedge in sealed ware this external and pit shaft, sealed ware body be from top to bottom in proper order for tubing coupling, oil jacket linker, expansion bend protect wedge ware, cone, appearance wedge connecting pipe on, protect wedge ware, single current valve down, on protect wedge ware fixed connection in the upper end of cone, protect wedge ware fixed connection down at the lower extreme that holds the wedge connecting pipe, the ring packing wedge is located and protects the wedge ware and protect between the wedge ware under and, the external diameter of ring packing wedge is unanimous between the higher and lower levels, the lower extreme internal diameter of ring packing wedge is greater than the upper end internal diameter, has the gap on the ring packing wedge. Beneficial effect: this sealed ware adopts the ring packing wedge to seal pit shaft, convenience simple to use down along the cone, the ring packing wedge adopts the nylon material, can not take place plastic deformation in certain field of load to ageing -resistant and fatigue durability makes whole sealed ware long service life.
Description
Technical field
This utility model relates to the sealer of oil well, is specifically related to a kind of wedge-type seal device.
Background technology
Being born that day from oil well, in world wide, the potted component of all kinds of packers used when needing packing oil, gas and water in pit shaft in order to develop all adopts elastomeric material.Operation principle be by suppress expansion or mechanical presses way utilize rubber tube high resiliency realize packing pit shaft purpose.The various types of packers made by this principle in oil recovery, water filling etc. produce, pressure break, acidifying, sand control, the construction such as discharge opeing is made that huge Historic Contributions.But have also discovered the defect that this series products is serious: 1 is ageing-resistant poor with fatigability.Due to rubber tube work in pit shaft to bear the comprehensive function of corrosion composition in high temperature, high pressure, difference variation, pressure reduction change, string creep, the dynamic abrasion of frequency and fluid media (medium) make its in the lab rubber can the packer of ageing-resistant 5 years, just failed less than 1 year in actually used.Substantial amounts of, long-term production leadtime data show: at present all kinds of packers more than 95% lost efficacy in 1 year.And packer expiration date at least to reach more than three and half needs that could meet oil well and water injection well.2 poor reliability.Rubber tube in the process of going into the well is caused to damage owing to all links particularly hole deviations such as manufacture, handling, transport, work and pit shaft totally and frequently do not set.The reason also having structure makes packing element discontinuity, causes inefficacy.Site operation often occurs with great difficulty to arrive position under packer, it has been found that fail, it is necessary to change one and go into the well.And newly change can ensure that it is unknown for not losing efficacy.Also has a kind of situation: owing to packing element has partial injury (cannot check), start effectively to work, but do not know when just fail.Etc. the loss that thereby results in very huge.A kind of good reliability, the appearance of isolating tool-wedge-type sealer of time length is used just to seem extremely urgent.
Utility model content
For the problems referred to above, this utility model provides a kind of wedge-type seal device.
This utility model solves above-mentioned technical problem and be the technical scheme is that a kind of wedge-type seal device, it is characterized in that: the sealer body including being placed in pit shaft and ring set ring packing wedge in this external and pit shaft of sealer, described sealer body is from top to bottom followed successively by tubing coupling, oil casing communicating vessel, compensator, on protect wedge device, cone, hold wedge connecting tube, under protect wedge device, ball-and-seat, described compensator includes pipe and compensator outer tube in compensator, in described compensator, pipe is positioned at compensator outer tube, in described compensator, pipe moves up and down along compensator outer tube wall, protect wedge device on described and be fixedly connected on the upper end of cone, protect wedge device under described and be fixedly connected on the lower end holding wedge connecting tube, described ring packing wedge upper protect wedge device and under protect between wedge device；
The external diameter of described ring packing wedge is unanimous between the higher and lower levels, the bottom diameter of described ring packing wedge more than upper-end inner diameter, described ring packing wedge descends vertically thereon even circumferential cut some intermesh, length overlaps each other, upper and lower disconnected gap；
Described ring packing cover of wedge is in cone, and the external diameter of described cone is identical with the internal diameter gradient of described ring packing wedge；
Described cone upper end is also arranged with pressure-activated circle, and the external diameter of described pressure-activated circle is identical with the internal diameter of pit shaft, and described pressure-activated circle is fixed with pressure-activated plate of encircling for protection；
Ultimate principle be by a kind of not only have certain degree of hardness, but also have certain elasticity, the nylon material of plastic deformation will not be occurred in certain field of load to make external diameter is identical with casing inner diameter, big upper end, internal diameter lower end is little tubular ring packing wedge, and descend thereon vertically each on circumference uniformly to cut out the gap that several angles are interlaced, length is overlapped, do not connect, have one fixed width up and down.By ring packing cover of wedge in the cone that the upper end diameter little lower end diameter identical with its internal diameter gradient is big, when when pit shaft annular wedged seal is descending or vertebral body is up, ring packing wedge external diameter increases to fits with internal surface of sleeve pipe, thus realizing sealing the purpose of oil sets annular space.And after using, can gush at himself contractility, upper and lower pressure reduction, liquid nighttide every time, up along cone under the synergy of string creep, external diameter diminishes recovery to original state.When wedge-type wedged seal is tripped out pit shaft by needs, cone is exercised ring packing wedge and is stretched to opening and connects up and down, and and then take off cone.
Further, described tubing coupling is plain end oil well pipe box cupling.
Further, described ring packing wedge is nylon material.
Further, the external diameter of described pressure-activated plate of encircling for protection less than above protect wedge device external diameter or under protect the external diameter of wedge device.
Further, the minimum outer diameter of described ring packing wedge less than above protect wedge device external diameter or under protect the external diameter of wedge device.
Further, described pressure-activated circle is elastic rubber ring.
The utility model has the advantage of: 1, this sealer adopts ring packing wedge along the descending seal shaft of cone, easy to use；2, this sealer can carry out leak detection before work, it is ensured that the effective status of work；3, ring packing wedge adopts nylon material, has certain hardness to have again certain elasticity, plastic deformation and ageing-resistant and fatigue durability will not occur in certain field of load so that whole sealer long service life, can meet the needs of oil well and water injection well；4, ring packing wedge is provided with the gap that some angles intermesh, length overlaps each other, do not connect, have one fixed width up and down vertically, it is ensured that ring packing wedge is flexible within the specific limits and does not rupture；5, has used every time after, ring packing wedge can gush at himself contractility, upper and lower pressure reduction, liquid nighttide again, up along cone under the synergy of string creep, recovery is to original state.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or technical scheme of the prior art, the accompanying drawing used required in detailed description of the invention or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is embodiments more of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is that this utility model is gone into the well state diagram.
Fig. 2 is utility model works state diagram.
Fig. 3 is that this utility model trips out state diagram.
Wherein:
1, pipe in tubing coupling 2, oil casing communicating vessel 3, compensator
4, compensator outer tube 5, on protect wedge device 6, pressure-activated plate of encircling for protection
7, pressure-activated circle 8, ring packing wedge 9, cone
10, hold wedge connecting tube 11, under protect wedge device 12, ball-and-seat
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, it is clear that described embodiment is a part of embodiment of this utility model, rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection.
A kind of wedge-type seal device as shown in the figure, sealer body that this sealer includes being placed in pit shaft and ring set ring packing wedge 8 in this external and pit shaft of sealer, described sealer body is from top to bottom followed successively by tubing coupling 1, oil casing communicating vessel 2, pipe 3 in compensator, compensator outer tube 4, on protect wedge device 5, cone 9, hold wedge connecting tube 10, under protect wedge device 11, ball-and-seat 12, ring packing wedge 8 is enclosed within outside cone 9, after as above order is completed, insert in pit shaft, protect wedge device 5 on described and be fixedly connected on the upper end of cone 9, protect wedge device 11 under described and be fixedly connected on the lower end holding wedge connecting tube 10, described ring packing wedge 8 upper protect wedge device 5 and under protect between wedge device 11；The external diameter of described ring packing wedge 8 is unanimous between the higher and lower levels, the bottom diameter of described ring packing wedge 8 more than upper-end inner diameter, described ring packing wedge 8 descends vertically thereon even circumferential cut some intermesh, length overlaps each other, upper and lower disconnected gap；Described ring packing wedge 8 is placed in cone 9, and the external diameter of described cone 9 is identical with the internal diameter gradient of described ring packing wedge 8；Described cone 9 upper end is also arranged with pressure-activated circle 7, and the external diameter of described pressure-activated circle 7 is identical with the internal diameter of pit shaft, and described pressure-activated circle 7 is fixed with pressure-activated plate 6 of encircling for protection；
Further, described tubing coupling 1 is plain end oil well pipe box cupling 1.
Further, described ring packing wedge 8 is nylon material.
Further, the external diameter of described pressure-activated plate 6 of encircling for protection less than above protect wedge device 5 external diameter or under protect the external diameter of wedge device 11.
Further, the minimum outer diameter of described ring packing wedge 8 less than above protect wedge device 5 external diameter or under protect the external diameter of wedge device 11.
Further, described pressure-activated circle 7 is elastic rubber ring.
Embodiment 1
G.I.H is filled by der group shown in Fig. 1, pressure-activated plate 6 of encircling for protection, pressure-activated circle 7, ring packing wedge 8 are on the top of cone 9, the external diameter of pressure-activated encircle for protection plate 6 and ring packing wedge 8 less than above protect wedge device 5 and under protect the external diameter of wedge device 11, pressure-activated circle 7 is elastic rubber.Pressure-activated plate 6 of encircling for protection, pressure-activated circle 7, ring packing wedge 8 upper protect wedge device 5 and under protect wedge device 11 protection under enter precalculated position.Without drifting and scraping before lower, if midway is hampered, this well is not suitable for using this wedge-type sealer, is tripped out pit shaft, abandons using.
Embodiment 2
The duty of wedge-type seal device as described in Figure 2; after wedge-type sealer enters precalculated position; close oil pipe gate; anti-flushing well suppresses the hypomere making pressure-activated plate 6 of encircling for protection protect pressure-activated circle 7 to promote ring packing wedge 8 to come downwards to cone 9; in descending process, the external diameter of annular wedged seal 8 is gradually increased; fit until increasing to internal surface of sleeve pipe, thus sealing up oil sets annular space.Meanwhile, ball-and-seat 12 is closed under upper differential pressure action, and continuation anti-flushing well is suppressed and made well head pressure rise to 10MPa, voltage stabilizing 30 minutes, and pressure drop then shows that less than 0.3MPa wedge-type sealer enters sealing state.Opening oil pipe and go out port strobe, flushing fluid enters in oil pipe by oil casing communicating vessel 2 from oil sets annular space, discharges from oil pipe gate.After well-flushing terminates; oil well pump passes through oil casing communicating vessel 2 by ring packing wedge more than 8 oil sets annular space emptying rate of liquid; ring packing wedge 8 gushes at himself contractility, upper and lower pressure reduction, liquid nighttide, up along cone 9 under the synergy of string creep; diameter be reduced to less than above protect wedge device 5 and under protect the diameter of wedge device 11, thus being in protected state.Repeat said process during each well-flushing later.Realize well-flushing liquid and do not pollute stratum thus protecting the purpose on stratum.
Embodiment 3
As it is shown on figure 3, sealer is up when tripping out, cone 9 is up to be caused that ring seal diameter is stretched to opening and connects fracture up and down, drop on appearance wedge connecting tube 10 outer, under protect on wedge device 11, thus tripping out well head with sealer.
Last it is noted that various embodiments above is only in order to illustrate the technical solution of the utility model, it is not intended to limit；Although this utility model being described in detail with reference to foregoing embodiments, it will be understood by those within the art that: the technical scheme described in foregoing embodiments still can be modified by it, or wherein some or all of technical characteristic is carried out equivalent replacement；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of this utility model.
Claims (6)
1. a wedge-type seal device, it is characterized in that: the sealer body including being placed in pit shaft and ring set ring packing wedge in this external and pit shaft of sealer, described sealer body is from top to bottom followed successively by tubing coupling, oil casing communicating vessel, compensator, on protect wedge device, cone, hold wedge connecting tube, under protect wedge device, ball-and-seat, described compensator includes pipe and compensator outer tube in compensator, in described compensator, pipe is positioned at compensator outer tube, in described compensator, pipe moves up and down along compensator outer tube wall, protect wedge device on described and be fixedly connected on the upper end of cone, protect wedge device under described and be fixedly connected on the lower end holding wedge connecting tube, described ring packing wedge upper protect wedge device and under protect between wedge device；
The external diameter of described ring packing wedge is unanimous between the higher and lower levels, the bottom diameter of described ring packing wedge more than upper-end inner diameter, described ring packing wedge descends vertically thereon even circumferential cut some intermesh, length overlaps each other, upper and lower disconnected gap；
Described ring packing cover of wedge is in cone, and the external diameter of described cone is identical with the internal diameter gradient of described ring packing wedge；
Described cone upper end is also arranged with pressure-activated circle, and the external diameter of described pressure-activated circle is identical with the internal diameter of pit shaft, and described pressure-activated circle is fixed with pressure-activated plate of encircling for protection.
2. a kind of wedge-type seal device according to claim 1, it is characterised in that: described tubing coupling is plain end oil well pipe box cupling.
3. a kind of wedge-type seal device according to claim 1, it is characterised in that: described ring packing wedge is nylon material.
4. a kind of wedge-type seal device according to claim 1, it is characterised in that: the external diameter of described pressure-activated plate of encircling for protection less than above protect wedge device external diameter or under protect the external diameter of wedge device.
5. a kind of wedge-type seal device according to claim 1, it is characterised in that: the minimum outer diameter of described ring packing wedge less than above protect wedge device external diameter or under protect the external diameter of wedge device.
6. a kind of wedge-type seal device according to claim 1, it is characterised in that: described pressure-activated circle is elastic rubber ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521143205.1U CN205370502U (en) | 2015-12-31 | 2015-12-31 | Wedge -type seal ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521143205.1U CN205370502U (en) | 2015-12-31 | 2015-12-31 | Wedge -type seal ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205370502U true CN205370502U (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521143205.1U Active CN205370502U (en) | 2015-12-31 | 2015-12-31 | Wedge -type seal ware |
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| Country | Link |
|---|---|
| CN (1) | CN205370502U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882111A (en) * | 2019-04-11 | 2019-06-14 | 天津市益彰石油科技发展有限公司 | The logical profit wedge-type sealer of anti-sticking anticreep |
| CN115874970A (en) * | 2023-03-08 | 2023-03-31 | 天津市益彰石油科技发展有限公司 | Bidirectional pressure-bearing wedge type sealer |
-
2015
- 2015-12-31 CN CN201521143205.1U patent/CN205370502U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882111A (en) * | 2019-04-11 | 2019-06-14 | 天津市益彰石油科技发展有限公司 | The logical profit wedge-type sealer of anti-sticking anticreep |
| CN109882111B (en) * | 2019-04-11 | 2024-04-12 | 天津市益彰石油科技发展有限公司 | Anti-blocking anti-falling through lubrication wedge type sealer |
| CN115874970A (en) * | 2023-03-08 | 2023-03-31 | 天津市益彰石油科技发展有限公司 | Bidirectional pressure-bearing wedge type sealer |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |