CN202483506U - High-pressure self-sealing rubber cup assembly enabling repeated sitting for packer - Google Patents
High-pressure self-sealing rubber cup assembly enabling repeated sitting for packer Download PDFInfo
- Publication number
- CN202483506U CN202483506U CN2012200854573U CN201220085457U CN202483506U CN 202483506 U CN202483506 U CN 202483506U CN 2012200854573 U CN2012200854573 U CN 2012200854573U CN 201220085457 U CN201220085457 U CN 201220085457U CN 202483506 U CN202483506 U CN 202483506U
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- China
- Prior art keywords
- leather cup
- shoulder protector
- rubber cup
- protector plate
- rubber
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Abstract
The utility model relates to the technical field of oil field well repair, in particular to a high-pressure self-sealing rubber cup assembly enabling repeated sitting for a packer. The high-pressure self-sealing rubber cup comprises a rubber cup which is sleeved on a sealing slip ring, wherein a rubber cup pressing cap is in threaded connection above the rubber cup. The high-pressure self-sealing rubber cup is characterized in that the shoulder part of the rubber cup is circumferentially provided with a plurality of rubber cup shoulder protecting plates; and the radial sections of the rubber cup shoulder plates are cambered. According to the high-pressure self-sealing rubber cup, open rubber cup shoulder protecting plates are arranged on the shoulder part of the rubber cup to be matched with the inner wall of a bushing along with expansion of the rubber cup, and a slotted gap of a hem angle of the rubber cup shoulder protecting plates is compensated by utilizing an elastic compensation plate, so that the a complete rigid annular protecting cover is obtained on the shoulder part of the rubber cup, and damage after cutting of the rubber cup due to protrusion of the high-pressure-bearing shoulder part is effectively controlled.
Description
Technical field
The utility model relates to well workover technology field, oil field, but relates in particular to the high pressure self-styled leather cup assembly of a kind of packer with the repeat block envelope.
Background technology
In job executions such as acidification of oil field, pressure break, often use a kind of self-packing packer, i.e. cup packer.Cup packer is connected with oil pipe and is delivered to underground work purpose well section, and rubber cup is socketed on the sealing slip ring, and the leather cup top is connected with the leather cup pressure-pad.Utilize the interference fit of leather cup skirt section and internal surface of sleeve pipe to form primary seal; When operation is constructed, aboveground highly pressurised liquid is delivered to the operation stratum of packer below through oil pipe; Effect down cup inner chamber pressure-bearing at highly pressurised liquid is up; Compress the above packer component of leather cup, and the leather cup skirt section is pressed on the internal surface of sleeve pipe, shutoff is by oil pipe more than the highly pressurised liquid entering packer of aboveground injection and the annular space between the sleeve pipe.When leather cup bore the high pressure that exceeds the rubber pressure-bearing limit in oil well, the rubber bodies below packer steel body produced expansion and causes shoulder prominent, forms shearing ring in the annular space between sleeve pipe and packer steel body, causes damaged seal failure." protrusion-dispelling " device that uses at present mainly contains at leather cup set inside steel wire and raising rubber bodies hardness dual mode.Application shows; This dual mode kind increases to the anti-pressure ability that improves leather cup to a certain extent; But still can not solve the down-hole high pressure operation; Because rubber and steel wire exist than big-difference at aspects such as hardness, deflections, be prone in the leather cup bearing strain process produce the phenomenon of separating, even cut off leather cup with rubber bodies.The low sealing performance of the caoutchouc elasticity of high rigidity is relatively poor, and when the operational pressure value exceeded the rubber manufacturing machinery performance boundary, it was damaged to cause shoulder to shear equally, causes to lose to seal to cause the operation failure.
The utility model content
The purpose of the utility model is to overcome the deficiency of above-mentioned technology; And but a kind of packer self-styled leather cup assembly of high pressure with the repeat block envelope is provided; Can bear elevated pressures, it is damaged to avoid forming the outstanding leather cup that causes of shoulder, makes it in oil well, reach best sealing effectiveness.
The utility model is for realizing above-mentioned purpose; Adopt following technical scheme: but a kind of packer is with the self-styled leather cup assembly of high pressure of repeat block envelope; Comprise the rubber cup that is socketed on the sealing slip ring, the leather cup pressure cap that has been threaded above the rubber cup is characterized in that: be provided with several leather cup shoulder protector plates the shoulder ring week of said rubber cup; Leather cup shoulder protector plate can be injection molded into one with rubber cup; The radial section of said leather cup shoulder protector plate is shaped as circular arc, and the lower end of leather cup shoulder protector plate can match with the inwall of sleeve pipe when leather cup shoulder protector plate launches with rubber cup, and leather cup shoulder protector plate bears the pressure from rubber cup; Thereby improve the anti-pressure ability of rubber cup, and can not cause shoulder prominent.
Preferably, come off in order to limit leather cup shoulder protector plate, the leather cup shoulder protector plate positioning sleeve that has been threaded on the said leather cup pressure-pad, said leather cup shoulder protector plate positioning sleeve stage casing inner loop week is provided with protruding eaves, and the lower port of said leather cup shoulder protector plate positioning sleeve is provided with inward flange; It radially is provided with groove the upper end edge of said leather cup shoulder protector plate, and the inward flange on said groove and the said leather cup shoulder protector plate positioning sleeve fastens, and leather cup shoulder protector plate is radially to overturn in the center with the inward flange.
Preferably; Protruding eaves on the said leather cup shoulder protector plate positioning sleeve leather cup shoulder protector plate internal position limited sleeve that has been threaded; Said leather cup shoulder protector plate internal position limited sleeve is arranged on the periphery of said rubber cup; Said leather cup shoulder protector plate internal position limited sleeve end opening is provided with the outside eaves that turns over, and said turning over is socketed with the plurality of elastic compensating plate that links into an integrated entity through dowel on the eaves, and said elastic compensating plate is positioned at leather cup shoulder protector plate inboard and shelters from two adjacent leather cup shoulder protector plates.Utilize under the elastic compensating plate compensation leather cup shoulder protector plate pivot angle space of cracking, make the leather cup shoulder obtain a complete rigidity ring protection cover, controlled leather cup effectively and sheared the back breakage because of holding outstanding the causing of high pressure shoulder.
Preferably, the flange bottom of the groove top of said leather cup shoulder protector plate and leather cup shoulder protector plate positioning sleeve is provided with flexible rubber ring.Be convenient to the return of rubber cup and leather cup shoulder protector plate,,, be beneficial to deblocking and packer trips out with pressure disappearance return with rubber cup variable conformal.
The beneficial effect of the utility model is: the utility model is provided with open leather cup shoulder protector plate at the leather cup shoulder; Coincide with leather cup expansion and internal surface of sleeve pipe; Utilize under the elastic compensating plate compensation leather cup shoulder protector plate pivot angle space of cracking; Make the leather cup shoulder obtain a complete rigidity umbrella protective cover, controlled leather cup effectively and sheared the back breakage because of holding outstanding the causing of high pressure shoulder.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the utility model working state structure sketch map;
Fig. 3 is the steel skeleton construction figure of the utility model;
Fig. 4 is the structure exploded perspective view of the utility model;
Fig. 5 is the sectional view of leather cup shoulder protector plate;
Fig. 6 is several leather cup shoulder protector board combining structure sketch mapes;
Fig. 7 is leather cup shoulder protector plate and elastic compensating board combining structure sketch map;
Among the figure: 1, leather cup pressure cap; 2, leather cup shoulder protector plate positioning sleeve; 2-1, protruding eaves; 2-2, inward flange; 3, flexible rubber ring; 4, leather cup shoulder protector plate internal position limited sleeve; 4-1, turn over eaves; 5, elastic compensating plate; 5-1, dowel; 6, leather cup shoulder protector plate; 6-1, groove; 7, rubber cup; 8, sealing slip ring; 9, O type O-ring seal; 10, O type O-ring seal; 11, packer central tube; 12, sleeve pipe.
The specific embodiment
The specific embodiment below in conjunction with accompanying drawing and preferred embodiment detailed description the utility model.As shown in the figure; But a kind of packer is with the self-styled leather cup assembly of high pressure of repeat block envelope; Comprise the rubber cup 7 that is socketed on the sealing slip ring 8, the rubber cup top is connected with leather cup pressure cap 1, is provided with several leather cup shoulder protector plates 6 the shoulder ring week of said rubber cup; Leather cup shoulder protector plate is close to rubber cup, can gum down also peripheral to fix through wire rope.Leather cup shoulder protector plate 6 is the polylith fabricated structure; Leather cup shoulder protector plate can be injection molded into one with rubber cup 7; The radial section of said leather cup shoulder protector plate is shaped as circular arc, and the lower end of leather cup shoulder protector plate can match with the inwall of sleeve pipe 12 when leather cup shoulder protector plate launches with rubber cup, and leather cup shoulder protector plate bears the pressure from rubber cup; Thereby improve the anti-pressure ability of rubber cup, and can not cause shoulder prominent.
Further improvement as the utility model; Come off in order to limit leather cup shoulder protector plate; The leather cup shoulder protector plate positioning sleeve 2 that has been threaded on the said leather cup pressure-pad, ring is provided with internal thread in week in the leather cup shoulder protector plate positioning sleeve top, and said 2 stage casing inner loop weeks of leather cup shoulder protector plate positioning sleeve are provided with protruding eaves 2-1; Protruding eaves is provided with internal thread, and the lower port of said leather cup shoulder protector plate positioning sleeve is provided with inward flange 2-2; It radially is provided with groove 6-1 the upper end edge of said leather cup shoulder protector plate, and promptly the upper end becomes an annular groove as outside sweep.Inward flange 2-2 on said groove 6-1 and the said leather cup shoulder protector plate positioning sleeve fastens, and leather cup shoulder protector plate is radially to overturn in the center with the inward flange.
Improve as the another kind of the utility model, the leather cup shoulder protector plate internal position limited sleeve 4 that has been threaded of the protruding eaves 2-1 on the said leather cup shoulder protector plate positioning sleeve, leather cup shoulder protector plate internal position limited sleeve top is provided with external screw thread, coincide with internal thread on the protruding eaves 2-1.Said leather cup shoulder protector plate internal position limited sleeve 4 is arranged on the periphery of said rubber cup; Said leather cup shoulder protector plate internal position limited sleeve end opening is provided with the outside eaves 4-1 that turns over; Said turning over is socketed with the plurality of elastic compensating plate 5 that links into an integrated entity through dowel 5-1, the arc section that dowel 5-1 turns in being inverted to form on the eaves.The elastic compensating plate adopts spring steel plate to make, and said elastic compensating plate is positioned at leather cup shoulder protector plate inboard and shelters from two adjacent leather cup shoulder protector plates 6.Elastic compensating plate position elastic body adopts the steel spring plate punch forming, and the inwall coating adhesive is with the leather cup sulfidization molding.Utilize under the elastic compensating plate compensation leather cup shoulder protector plate pivot angle space of cracking, make the leather cup shoulder obtain a complete rigidity ring protection cover, controlled leather cup effectively and sheared the back breakage because of holding outstanding the causing of high pressure shoulder.
Another kind as the utility model improves, and the inward flange bottom of the groove 6-1 top of said leather cup shoulder protector plate and leather cup shoulder protector plate positioning sleeve is provided with flexible rubber ring 3.Flexible rubber ring 3 is used to limit leather cup shoulder protector plate and freely swings and be used for auxiliary leather cup shoulder protector plate return along the inward flange of leather cup shoulder protector plate positioning sleeve, is beneficial to deblocking and packer trips out, and flexible rubber ring inwall coating adhesive is with the leather cup sulfidization molding.Establish sealing ring 10 on the sealing slip ring 8, be used under sealing state, being linked in the packer central tube.Together the injecting glue molding sulfuration is bonding is integral for rubber cup 7 and above-mentioned part.Leather cup pressure cap 1 is provided with O type O-ring seal 9 and utilizes screw thread to screw with leather cup shoulder protector plate positioning sleeve 2, with rubber cup 7 be pressed on be used to control on the sealing slip ring 8 leather cup under high pressure conditions, produce in the leakage phenomenon.
After leather cup shoulder protector plate positioning sleeve 2, flexible rubber ring 3, leather cup shoulder protector plate internal position limited sleeve 4, elastic compensating plate 5, leather cup shoulder protector plate 6,8 combinations of sealing slip ring; Be installed in to touch and inject rubber in the tool and become rubber cup 7; Leather cup pressure cap 1 is threaded with 2 utilizations of leather cup shoulder protector plate positioning sleeve after the injecting glue moulding; On leather cup shoulder protector plate positioning sleeve 2, sealing slip ring 8, and utilize O type O-ring seal to form sealing the rubber top secondary compression after injecting, guarantee that the leather cup inner chamber does not have leakage when holding high pressure.
Described leather cup shoulder protector plate positioning sleeve 2, leather cup shoulder protector plate internal position limited sleeve 4, elastic compensating plate 5, leather cup shoulder protector plate 6 inside scribble rubber adhesive; Described sealing slip ring 8 outsides scribble bonding agent; Said leather cup shoulder protector plate positioning sleeve, leather cup shoulder protector plate internal position limited sleeve, elasticity elastic compensating plate, leather cup shoulder protector plate, the sealing slip ring that will scribble bonding agent is fixed on and injects rubber in the mould through high temperature vulcanized moulding, and said leather cup pressure-pad is being connected the self-styled leather cup assembly of formation high pressure on the leather cup shoulder protector plate positioning sleeve behind the rubber curing forming.
The rubber of this utility model employing unlike material is used to adapt in different hole conditions as the seal member main body.The utility model be applicable to normal temperature high voltage operation oil well, HTHP operation oil well, ultradeep well, once go into the well the repeat block envelope, be beneficial to anti-flushing well operation, multi-disc independent open formula shoulder protector plate and leather cup variable and internal surface of sleeve pipe conformal; Do not have again can be good under the situation of centralizer the support operations involving high pressure; And packer steel body diameter is minimized, integral body has improved tubing string handling capacity in oil well.
The utility model is provided with open leather cup shoulder protector plate at the leather cup shoulder; Coincide with leather cup expansion and internal surface of sleeve pipe; Utilize under the elastic compensating plate compensation leather cup shoulder protector plate pivot angle space of cracking; Make the leather cup shoulder obtain a complete rigidity ring protection cover, controlled leather cup effectively and sheared the back breakage because of holding outstanding the causing of high pressure shoulder.
The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.
Claims (4)
1. but a packer is with the self-styled leather cup assembly of high pressure of repeat block envelope; Comprise the rubber cup that is socketed on the sealing slip ring; The rubber cup top is connected with the leather cup pressure cap; It is characterized in that: be provided with several leather cup shoulder protector plates the shoulder ring week of said rubber cup, the radial section of said leather cup shoulder protector plate is shaped as circular arc.
2. but packer according to claim 1 is with the self-styled leather cup assembly of high pressure of repeat block envelope; It is characterized in that: leather cup shoulder protector plate positioning sleeve has been threaded on the said leather cup pressure-pad; Said leather cup shoulder protector plate positioning sleeve stage casing inner loop week is provided with protruding eaves, and the lower port of said leather cup shoulder protector plate positioning sleeve is provided with inward flange; It radially is provided with groove the upper end edge of said leather cup shoulder protector plate, and the inward flange on said groove and the said leather cup shoulder protector plate positioning sleeve fastens.
3. but packer according to claim 1 and 2 is with the self-styled leather cup assembly of high pressure of repeat block envelope; It is characterized in that: the leather cup shoulder protector plate internal position limited sleeve that has been threaded of the protruding eaves on the said leather cup shoulder protector plate positioning sleeve; Said leather cup shoulder protector plate internal position limited sleeve is arranged on the periphery of said rubber cup; Said leather cup shoulder protector plate internal position limited sleeve end opening is provided with the outside eaves that turns over; Said turning over is socketed with the plurality of elastic compensating plate that links into an integrated entity through dowel on the eaves, said elastic compensating plate is positioned at leather cup shoulder protector plate inboard and shelters from two adjacent leather cup shoulder protector plates.
4. but packer according to claim 3 is with the self-styled leather cup assembly of high pressure of repeat block envelope, and it is characterized in that: the flange bottom of the groove top of said leather cup shoulder protector plate and leather cup shoulder protector plate positioning sleeve is provided with flexible rubber ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200854573U CN202483506U (en) | 2012-03-08 | 2012-03-08 | High-pressure self-sealing rubber cup assembly enabling repeated sitting for packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200854573U CN202483506U (en) | 2012-03-08 | 2012-03-08 | High-pressure self-sealing rubber cup assembly enabling repeated sitting for packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202483506U true CN202483506U (en) | 2012-10-10 |
Family
ID=46957933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200854573U Withdrawn - After Issue CN202483506U (en) | 2012-03-08 | 2012-03-08 | High-pressure self-sealing rubber cup assembly enabling repeated sitting for packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202483506U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561990A (en) * | 2012-03-08 | 2012-07-11 | 天津汇铸石油设备科技有限公司 | Repeatedly-setting high-pressure self-sealing leather cup assembly for packer |
| CN104847299A (en) * | 2014-02-15 | 2015-08-19 | 陕西思锐机电科技有限公司 | Novel composite expanding packer rubber cylinder |
-
2012
- 2012-03-08 CN CN2012200854573U patent/CN202483506U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102561990A (en) * | 2012-03-08 | 2012-07-11 | 天津汇铸石油设备科技有限公司 | Repeatedly-setting high-pressure self-sealing leather cup assembly for packer |
| CN102561990B (en) * | 2012-03-08 | 2015-08-05 | 天津汇铸石油设备科技有限公司 | Packer is with repeating setting high-pressure self-sealing leather cup assembly |
| CN104847299A (en) * | 2014-02-15 | 2015-08-19 | 陕西思锐机电科技有限公司 | Novel composite expanding packer rubber cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121010 Effective date of abandoning: 20150805 |
|
| RGAV | Abandon patent right to avoid regrant |