CN205277347U - Expansion type tail tube suspension device - Google Patents
Expansion type tail tube suspension device Download PDFInfo
- Publication number
- CN205277347U CN205277347U CN201521102252.1U CN201521102252U CN205277347U CN 205277347 U CN205277347 U CN 205277347U CN 201521102252 U CN201521102252 U CN 201521102252U CN 205277347 U CN205277347 U CN 205277347U
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- lock claw
- sliding sleeve
- sleeve
- type tail
- undergauge
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Abstract
The utility model provides an expansion type tail tube suspension device, include: carry and draw the nipple joint, for the hollow cylinder structure, go up the sleeve, nipple joint fixed connection is drawn with carrying to one end, the other end and the one end fixed connection who locks the claw cover, the other end of lock claw cover sets up the loop type arch, the piston, the cover is located in going up the sleeve, can slide in last sleeve, go up the sliding sleeve, the sliding sleeve sets up in the below of last sliding sleeve down, the expansion cylinder, for the hollow cylinder structure, it has multistage high -temperature resistant rubber layer to vulcanize on its outer disc, and its upper end suit is fixed in the outside of lock claw cover, expansion cylinder middle part, lower part set up first toper undergauge, second toper undergauge respectively, first toper undergauge with down between the sliding sleeve, second toper undergauge bores with setting up the sieve cap down between the sliding sleeve respectively and expand, set up the pressure release hole on the sieve cap, gliding cover suit in the interior intracavity of lock claw cover, sieve cap, inflation awl, set up the loop type recess down on the sliding sleeve one end excircle, with the protruding joint of loop type of lock claw cover, the lower sliding sleeve other end and adjusting collar fixed connection.
Description
Technical field
This utility model relates to a kind of tail pipe hanging device, is specifically related to a kind of buckling type tail pipe hanger.
Background technology
At present, existing tail pipe packing hanger mainly adopts the structure of three packing elements, due to the constantly lengthening of sidetracking barefoot interval, intensification, oil reservoir is likely to result in pollution due to cementing quality problem by new packer liner-hanger packing hanger well cementation, even pressure is excessive causes leakage, and owing to the overlay segment of tail pipe is long, cause the cost of waste sleeve pipe.
Summary of the invention
The shortcoming of prior art in view of the above, the purpose of this utility model is in that to provide a kind of buckling type tail pipe hanger, for solving problem above-mentioned in prior art.
For achieving the above object and other relevant purposes, this utility model provides a kind of buckling type tail pipe hanger, including:
Lift pipe nipple, for hollow cylinder structure;
Upper bush, one end is fixing with described lift pipe nipple to be connected; One end that the other end overlaps with lock claw is fixing to be connected; The other end of described lock claw set arranges ring-like projection;
Piston, is sheathed in described upper bush, can slide in upper bush;
Upper sliding sleeve, is sheathed on the interior intracavity of described upper bush, described piston;
Low sleeve, is arranged at the lower section of described upper sliding sleeve;
Expansion cylinder, for hollow cylinder structure, its upper end suit is fixed on the outside of described lock claw set; In the middle part of described expansion cylinder, bottom be respectively provided with the first taper undergauge, the second taper undergauge, be respectively provided with sieve cap and expansion cone between described first taper undergauge and described low sleeve, between described second taper undergauge and described low sleeve; Described sieve cap arranges relief hole; Between described sieve cap and described lock claw set, spring is set; Described low sleeve is set in the interior intracavity of described lock claw set, described sieve cap, described expansion cone; Described low sleeve one end cylindrical arranges ring groove, the ring-like protruding clamping overlapped with described lock claw; The described low sleeve other end overlaps fixing connection with regulating; Described expansion cylinder outer wall is provided with rubber layer;
Interior pipe, is set in the interior intracavity of described low sleeve, and its underpart connects circulation ball valve;
Variable buckle joint, its top is fixing with described expansion cylinder to be connected, and bottom is fixing with described circulation ball valve to be connected.
Preferably, some sealing rings are set between described upper sliding sleeve and described piston.
Preferably, it is threadably secured between described lift pipe nipple and described upper bush and is connected.
Preferably, described lock claw is arranged with described ring-like protruding one end and is uniformly arranged some locking slots.
Preferably, described circulation ball valve includes sealing blind, circulation ball seat, one-way valve spring and ball sealer; Threadeding with said inner tube in described sealing blind top, the bottom of described sealing blind arranges cylindrical cavity, and described sealing blind is provided with through the through hole inside and outside cylindrical cavity; Described one-way valve spring is arranged in described cylindrical cavity; Described circulation ball seat is fixing with described sealing blind to be connected, and described circulation ball seat bottom arranges conical cavity; Described ball sealer is arranged in described conical cavity, the lower section of described one-way valve spring, and described ball sealer and the conical cavity conical surface lean.
It is further preferred that arrange some oil sealings between described sealing blind and described circulation ball seat.
Preferably, described low sleeve is threadably secured between overlapping with described adjustment and is connected.
Preferably, described lift pipe nipple one end cylindrical arranges ring shaped slot. This groove is for beating elevator.
Compared to the prior art this utility model, possesses good sealing and Bidirectional suspension performance, reliable operation, save cost, reduce cement mortar pollution that stratum is caused, eliminate the damage that upper strata sleeve pipe is caused by conventional hanger slips, and under enter and process be hampered time can carry out recycled back.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation, reads for convenience of seeing, and point upper and lower two parts are arranged in juxtaposition;
Fig. 2 is lock claw noose composition;
In figure: 1 lift pipe nipple, 2 upper bushes, 3 upper sliding sleeves, 4 pistons, 5 lock claw sets, 6 springs, 7 sieve caps, 8 expansion cylinders, 9 low sleeves, 10 expansion cone, 11 interior pipes, 12 adjustment sets, 13 variable buckle joints, 14 sealing blinds, 15 circulation ball seat, 16 one-way valve springs, 17 ball sealers, 141 through holes, 501 ring-like projections, 502 locking slots, 801 first taper undergauges, 802 second taper undergauges, 701 relief holes.
Detailed description of the invention
By particular specific embodiment, embodiment of the present utility model being described below, those skilled in the art the content disclosed by this specification can understand other advantages of the present utility model and effect easily.
Refer to Fig. 1 to Fig. 2. Notice, the structure of this specification accompanying drawing depicted, ratio, size etc., all only in order to coordinate the disclosed content of description, understand for those skilled in the art and read, it is not limited to the enforceable qualifications of this utility model, therefore do not have technical essential meaning, the adjustment of the modification of any structure, the change of proportionate relationship or size, under not affecting effect that this utility model can be generated by and the purpose that can reach, all should still drop in the scope that the disclosed technology contents of this utility model can be contained. Simultaneously, in this specification cited as " on ", D score, "left", "right", " centre " and " one " etc. term, it is merely convenient to understanding of narration, and it is not used to limit the enforceable scope of this utility model, the change of its relativeness or adjustment, changing under technology contents without essence, when being also considered as the enforceable category of this utility model.
Referring to Fig. 1 to Fig. 2, this utility model provides a kind of buckling type tail pipe hanger, including:
Lift pipe nipple 1, for hollow cylinder structure;
Upper bush 2, threaded with described lift pipe nipple 1 in one end; The other end is fixing with one end of lock claw set 5 to be connected; The other end of described lock claw set 5 arranges ring-like projection; Lock claw set 5 is provided with ring-like protruding 501 one end and is uniformly arranged some locking slots 502.
Piston 4, is sheathed in described upper bush 2, can slide in upper bush 2;
Upper sliding sleeve 3, is sheathed on the interior intracavity of upper bush 2, piston 4; Some sealing rings are set between upper sliding sleeve 3 and piston 4.
Low sleeve 9, is arranged at the lower section of described upper sliding sleeve;
Expansion cylinder 8, for hollow cylinder structure, its upper end suit is fixed on the outside of lock claw set 5; In the middle part of expansion cylinder 8, bottom be respectively provided with first taper undergauge the 801, second taper undergauge 802, be respectively provided with sieve cap 7 and expansion cone 10 between the first taper undergauge 801 and low sleeve 9-, between the second taper undergauge 802 and low sleeve 9; Sieve cap 7 arranges relief hole 701; Between sieve cap 7 and lock claw set 5, spring 6 is set; Low sleeve 9 is set in the interior intracavity of lock claw set 5, sieve cap 7, expansion cone 10; Low sleeve 9 one end cylindrical arranges ring groove, with ring-like protruding 501 clampings that lock claw overlaps 5; Low sleeve 9 other end is threadably secured with adjustment set 11 and is connected. Expansion cylinder 8 outer wall is provided with rubber layer.
Interior pipe 11, is set in the interior intracavity of low sleeve 9, and its underpart connects circulation ball valve;
Variable buckle joint 13, its top is fixing with expansion cylinder 8 to be connected, and bottom is fixing with described circulation ball valve to be connected.
Described circulation ball valve includes sealing blind 14, circulation ball seat 15, one-way valve spring 16 and ball sealer 17; Threadeding with interior pipe 11 in described sealing blind 14 top, the bottom of sealing blind 14 arranges cylindrical cavity, and sealing blind 14 is provided with through the through hole 141 inside and outside cylindrical cavity; One-way valve spring 16 is arranged in cylindrical cavity; Circulation ball seat 15 is fixing with sealing blind 14 to be connected, and circulation ball seat 15 bottom arranges conical cavity; Ball sealer 17 is arranged in described conical cavity, the lower section of one-way valve spring 16, and ball sealer 17 and the conical cavity conical surface lean.
Between sealing blind 14 and circulation ball seat 15, some oil sealings are set.
Lift pipe nipple 1 one end cylindrical arranges ring shaped slot. During for going into the well, installation elevator uses.
During use, buckling type tail pipe hanger is with after putting in place under tubing string, well head builds the pressure, under pressure effect, expansion cone 10 does axially-movable from top to bottom, expansion cone 10 extrusion expansion cylinder 8 makes it produce permanent radial plastic deformation, the rubber swelling of expansion cylinder 8 outer wall, in the annular space of hangar wall and outer layer sleeve inwall, plays and hangs tail pipe and seal the dual function of annular space. Check valve 14 is fixed on variable buckle joint 13 under the effect of hydraulic pressure, and after expansion cone 10 expands expansion cylinder 8, lock claw 5 shrinks the undergauge place being fixed on low sleeve 9, well head releasing pressure automatically, it is proposed to tubing string.
Above-described embodiment only illustrative principle of the present utility model and effect thereof, not for restriction this utility model. Above-described embodiment all under spirit of the present utility model and category, can be modified or change by any those skilled in the art. Therefore, art has all equivalence modification or changes that usually intellectual completes under the spirit disclosed without departing from this utility model with technological thought such as, must be contained by claim of the present utility model.
Claims (7)
1. a buckling type tail pipe hanger, it is characterised in that including:
Lift pipe nipple, for hollow cylinder structure;
Upper bush, one end is fixing with described lift pipe nipple to be connected; One end that the other end overlaps with lock claw is fixing to be connected; The other end of described lock claw set arranges ring-like projection;
Piston, is sheathed in described upper bush, can slide in upper bush;
Upper sliding sleeve, is sheathed on the interior intracavity of described upper bush, described piston;
Low sleeve, is arranged at the lower section of described upper sliding sleeve;
Expansion cylinder, for hollow cylinder structure, its upper end suit is fixed on the outside of described lock claw set; In the middle part of described expansion cylinder, bottom be respectively provided with the first taper undergauge, the second taper undergauge, be respectively provided with sieve cap and expansion cone between described first taper undergauge and described low sleeve, between described second taper undergauge and described low sleeve; Described sieve cap arranges relief hole; Between described sieve cap and described lock claw set, spring is set; Described low sleeve is set in the interior intracavity of described lock claw set, described sieve cap, described expansion cone; Described low sleeve one end cylindrical arranges ring groove, the ring-like protruding clamping overlapped with described lock claw; The described low sleeve other end overlaps fixing connection with regulating; On the periphery of described expansion cylinder, sulfuration has multistage high-temperature resistant rubber layer;
Interior pipe, is set in the interior intracavity of described low sleeve, and its underpart connects circulation ball valve;
Variable buckle joint, its top is fixing with described expansion cylinder to be connected, and bottom is fixing with described circulation ball valve to be connected.
2. buckling type tail pipe hanger according to claim 1, it is characterised in that: some sealing rings are set between described upper sliding sleeve and described piston.
3. buckling type tail pipe hanger according to claim 1, it is characterised in that: it is threadably secured between described lift pipe nipple and described upper bush and is connected.
4. buckling type tail pipe hanger according to claim 1, it is characterised in that: described lock claw is arranged with one end of described ring-like projection and is uniformly arranged some locking slots.
5. buckling type tail pipe hanger according to claim 1, it is characterised in that: described circulation ball valve includes sealing blind, circulation ball seat, one-way valve spring and ball sealer; Threadeding with said inner tube in described sealing blind top, the bottom of described sealing blind arranges cylindrical cavity, and described sealing blind is provided with through the through hole inside and outside cylindrical cavity; Described one-way valve spring is arranged in described cylindrical cavity; Described circulation ball seat is fixing with described sealing blind to be connected, and described circulation ball seat bottom arranges conical cavity; Described ball sealer is arranged in described conical cavity, the lower section of described one-way valve spring, and described ball sealer and the conical cavity conical surface lean.
6. buckling type tail pipe hanger according to claim 5, it is characterised in that: between described sealing blind and described circulation ball seat, some oil sealings are set.
7. buckling type tail pipe hanger according to any one of claim 1 to 5, it is characterised in that: described low sleeve is threadably secured between overlapping with described adjustment and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521102252.1U CN205277347U (en) | 2015-12-28 | 2015-12-28 | Expansion type tail tube suspension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521102252.1U CN205277347U (en) | 2015-12-28 | 2015-12-28 | Expansion type tail tube suspension device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205277347U true CN205277347U (en) | 2016-06-01 |
Family
ID=56061930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521102252.1U Active CN205277347U (en) | 2015-12-28 | 2015-12-28 | Expansion type tail tube suspension device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205277347U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823081A (en) * | 2019-11-15 | 2020-02-21 | 衡水汉丰橡塑科技有限公司 | Auxiliary device is used in rubber diaphragm production |
-
2015
- 2015-12-28 CN CN201521102252.1U patent/CN205277347U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110823081A (en) * | 2019-11-15 | 2020-02-21 | 衡水汉丰橡塑科技有限公司 | Auxiliary device is used in rubber diaphragm production |
| CN110823081B (en) * | 2019-11-15 | 2021-09-03 | 衡水汉丰橡塑科技有限公司 | Auxiliary device is used in rubber diaphragm production |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |