CN204225820U - Plug-type tubing string drainage bascule - Google Patents
Plug-type tubing string drainage bascule Download PDFInfo
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- CN204225820U CN204225820U CN201420642170.5U CN201420642170U CN204225820U CN 204225820 U CN204225820 U CN 204225820U CN 201420642170 U CN201420642170 U CN 201420642170U CN 204225820 U CN204225820 U CN 204225820U
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- inner core
- slippage
- sliding sleeve
- urceolus
- tubing string
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Abstract
The utility model relates to salvaging pressure relief device technical field, is a kind of plug-type tubing string drainage bascule, comprises inner core, pressure reduction sliding sleeve, shear pin, urceolus, fixture block, retaining stop collar and lower contact; The upper inner of inner core is provided with pressure reduction sliding sleeve and both are fixedly installed togather by shear pin, the lower outside of pressure reduction sliding sleeve has slippage land, has slippage annular groove with matching and the upper end of slippage annular groove is positioned at the top of slippage land inside the inner core of corresponding slippage land position; The lower outside of inner core is sleeved on the upper inner of urceolus.The utility model reasonable and compact in structure, easy to use, it can to realize tubing string inner being communicated with sleeve pipe by being connected into by the utility model between oil pipe with fishing tool, thus the liquid being positioned at its inside all can be entered sleeve pipe, and can avoid thus causing well head to pollute and the wasting of resources at dismounting tubing thread, simple to operate, time saving and energy saving, environmentally-friendly sanitary, convenient and swift, and be convenient to follow-up workover treatment.
Description
Technical field
the utility model relates to salvaging pressure relief device technical field, is a kind of plug-type tubing string drainage bascule.
Background technology
at present, in underground hydraulic pressure power-assisted fishing, all need pitching to build the pressure operation, but a whole set of salvaging pipe column inner chamber will be caused after pitching operation to form an enclosure space, it during upper lifting pipe post, because oil pipe is not communicated with sleeve pipe, can cause the liquid in oil pipe to be taken out of together because flowing into sleeve pipe after completing unfreezing fishing, cause when well head dismounting tubing thread, liquid in oil pipe will spill to well site, cause well head to pollute and the wasting of resources, make troubles to workover treatment.
Summary of the invention
the utility model provides a kind of plug-type tubing string drainage bascule, overcome the deficiency of above-mentioned prior art, when it effectively can solve the upper lifting pipe post of existing fishing existence, because oil pipe is not communicated with sleeve pipe, the liquid that cannot flow in sleeve pipe is taken out of together, thus cause well head to pollute and the wasting of resources when dismantling tubing thread, and to the problem that workover treatment is made troubles.
the technical solution of the utility model is realized by following measures: a kind of plug-type tubing string drainage bascule, comprises inner core, pressure reduction sliding sleeve, shear pin, urceolus, fixture block, retaining stop collar and lower contact; The upper inner of inner core is provided with pressure reduction sliding sleeve and both are fixedly installed togather by shear pin, the lower outside of pressure reduction sliding sleeve has slippage land, has slippage annular groove with matching and the upper end of slippage annular groove is positioned at the top of slippage land inside the inner core of corresponding slippage land position; The lower outside of inner core is sleeved on the upper inner of urceolus, between corresponding urceolus upper end and pressure reduction sliding sleeve lower end position inner core sidewall on circumferentially have at least one limiting through hole, limited location groove inside the urceolus of corresponding limiting through hole position, is all provided with the fixture block that can embed in stopper slot in each limiting through hole; The lower end of inner core is fixed with single file sliding sleeve, the lower inside limited location annular groove of urceolus, and the upper inner of limited ring groove is set with the retaining stop collar that can match with single file sliding sleeve, and the lower inside of limited ring groove is installed with lower contact; The inner core sidewall of corresponding fixture block lower position circumferentially has at least one can communicate with pressure reduction sliding sleeve inner chamber in intercommunicating pore, in corresponding intercommunicating pore lower position outer tube side wall on circumferentially have at least one outer intercommunicating pore that can communicate with interior intercommunicating pore after inner core is descending.
here is the further optimization and/or improvements to above-mentioned utility model technical scheme:
the upper outside of the pressure reduction sliding sleeve of above-mentioned corresponding slippage annular groove top position can have outer groove, is provided with snap ring in outer groove, and the upper inner of the inner core of corresponding outer groove top position has the interior stopper slot of energy limited location snap ring displacement.
the outside of above-mentioned single file sliding sleeve can be distributed with the circumferential single file pawl of at least one circle from top to bottom, the upper inner of retaining stop collar be from top to bottom distributed with at least one circle with can the circumferential retaining pawl that matches of circumferential single file pawl, the top of retaining stop collar circumferentially has open slot and the upper part of retaining stop collar is divided at least two panels elastic claw by open slot.
the upper outside of above-mentioned lower contact can circumferentially limited location block and the upper outside of lower contact is separated at least two anti-rotation chambeies by limited block, and the lower end of the retaining stop collar of position, corresponding each anti-rotation chamber is fixed with the Anti-rotary block snapped in corresponding anti-rotation chamber.
between above-mentioned corresponding slippage land upper end and slippage annular groove upper end position inner core sidewall on can circumferentially have at least one exhaust hole.
between inner core and urceolus of position between the pressure reduction sliding sleeve of above-mentioned slippage land and position between inner core, between corresponding snap ring and slippage annular groove with inner core, between the inner core of corresponding fixture block top position with urceolus, between corresponding fixture block and interior intercommunicating pore, corresponding between intercommunicating pore and outer intercommunicating pore position all can be provided with sealing ring between inner core and urceolus and between the inner core of corresponding outer intercommunicating pore lower position and urceolus.
the upper outside of above-mentioned inner core can be fixed with the tubing coupling that can be connected with tubing thread.
the utility model reasonable and compact in structure, easy to use, it can to realize tubing string inner being communicated with sleeve pipe by being connected into by the utility model between oil pipe with fishing tool, thus the liquid being positioned at its inside all can be entered sleeve pipe, and can avoid thus causing well head to pollute and the wasting of resources at dismounting tubing thread, simple to operate, time saving and energy saving, environmentally-friendly sanitary, convenient and swift, and be convenient to follow-up workover treatment.
Accompanying drawing explanation
accompanying drawing 1 is that the master of the utility model most preferred embodiment looks half section structural representation.
accompanying drawing 2 is the sectional structure schematic diagram of accompanying drawing 1 at A-A place.
coding in accompanying drawing is respectively: 1 is inner core, and 2 is pressure reduction sliding sleeve, and 3 is shear pin, and 4 is urceolus, 5 is fixture block, and 6 is retaining stop collar, and 7 is lower contact, and 8 is sealing ring, 9 is slippage land, and 10 is slippage annular groove, and 11 is single file sliding sleeve, and 12 is interior intercommunicating pore, 13 is outer intercommunicating pore, and 14 is snap ring, and 15 is single file pawl, and 16 is circumferential retaining pawl, 17 is open slot, and 18 is elastic claw, and 19 is limited block, 20 is Anti-rotary block, and 21 is exhaust hole, and 22 is tubing coupling.
Detailed description of the invention
the utility model by the restriction of following embodiment, can not determine concrete embodiment according to the technical solution of the utility model and actual conditions.
in the utility model, for convenience of description, the description of the relative position relation of each parts is all be described according to the Butut mode of Figure of description 1, as: the position relationship of forward and backward, upper and lower, left and right etc. determines according to the Butut direction of Figure of description.
below in conjunction with embodiment and accompanying drawing, the utility model is further described:
as shown in accompanying drawing 1,2, this plug-type tubing string drainage bascule comprises inner core 1, pressure reduction sliding sleeve 2, shear pin 3, urceolus 4, fixture block 5, retaining stop collar 6 and lower contact 7; The upper inner of inner core 1 is provided with pressure reduction sliding sleeve 2 and both are fixedly installed togather by shear pin 3, the lower outside of pressure reduction sliding sleeve 2 has slippage land 9, has slippage annular groove 10 with matching and the upper end of slippage annular groove 10 is positioned at the top of slippage land 9 inside the inner core 1 of corresponding slippage land 9 position; The lower outside of inner core 1 is sleeved on the upper inner of urceolus 4, between corresponding urceolus 4 upper end and pressure reduction sliding sleeve 2 lower end position inner core 1 sidewall on circumferentially have at least one limiting through hole, limited location groove inside the urceolus 4 of corresponding limiting through hole position, is all provided with the fixture block 5 that can embed in stopper slot in each limiting through hole; The lower end of inner core 1 is fixed with single file sliding sleeve 11, the lower inside limited location annular groove of urceolus 4, and the upper inner of limited ring groove is set with the retaining stop collar 6 that can match with single file sliding sleeve 11, and the lower inside of limited ring groove is installed with lower contact 7; Inner core 1 sidewall of corresponding fixture block 5 lower position circumferentially has at least one can communicate with pressure reduction sliding sleeve 2 inner chamber in intercommunicating pore 12, in corresponding intercommunicating pore 12 lower position urceolus 4 sidewall on circumferentially have at least one outer intercommunicating pore 13 that can communicate with interior intercommunicating pore 12 after inner core 1 is descending.According to demand, by the setting of distance, the distance the distance from fixture block 5 upper end to pressure reduction sliding sleeve 2 lower end is less than from slippage land 9 upper end to slippage annular groove 10 upper end, can guarantee that fixture block 5 can come off smoothly when pressure reduction sliding sleeve 2 is up in limiting through hole; Stopper slot can be groove or annular groove, is preferably annular groove, can makes the easier for installation of fixture block 5 like this, and can be convenient to coming off of fixture block 5.When fishing, can first the utility model be accessed between oil pipe and fishing tool, then one is played G.I.H and carry out fishing operation, after fishing operation completes, can operate routinely and first drop into the ball that builds the pressure, then suppress in tubing string, the ball that now builds the pressure will arrive in fishing tool, and shutoff is positioned at the cavity above the ball that builds the pressure, because the bearing up-down force area of pressure reduction sliding sleeve 2 is different, pressure reduction sliding sleeve 2 will be cut off shear pin 3 and move up under differential pressure action, and in the process of going thereon, fixture block 5 will come off in limiting through hole; Then tubing string can be transferred, now single file sliding sleeve 11 will be inserted in retaining stop collar 6 and also match with it, in this process, retaining stop collar 6 may be caused with urceolus 4 together upwards play if the resistance of junk that fisher is salvaged loses suddenly, thus single file sliding sleeve 11 is inserted in retaining stop collar 6 and matches with it, now can transfer tubing string, save this step; At this moment, outer intercommunicating pore 13 communicates with the inner chamber of interior intercommunicating pore 12 and pressure reduction sliding sleeve 2 and inner core 1, and being positioned at inner liquid can enter sleeve pipe thus; Last upper lifting pipe post again, limited ring groove is by the upper end of spacing backstop stop collar 6, thus complete equipment is taken out, in the process of upper lifting pipe post, be positioned at inner liquid and still enter sleeve pipe by intercommunicating pore 12 and outer intercommunicating pore 13, when complete equipment proposes, the liquid of its inside all can be discharged thus.Adopt the utility model can realize tubing string inner being communicated with sleeve pipe, thus the liquid being positioned at its inside is all entered sleeve pipe, can avoid thus causing well head pollution and the wasting of resources at dismounting tubing thread, simple to operate, time saving and energy saving, environmentally-friendly sanitary, convenient and swift, and be convenient to follow-up workover treatment.
according to actual needs, above-mentioned plug-type tubing string drainage bascule can be made further optimization and/or improvements:
as shown in accompanying drawing 1,2, the upper outside of the pressure reduction sliding sleeve 2 of corresponding slippage annular groove 10 top position has outer groove, is provided with snap ring 14 in outer groove, and the upper inner of the inner core 1 of corresponding outer groove top position has the interior stopper slot of energy limited location snap ring 14 displacement.In use, when pressure reduction sliding sleeve 2 is up under differential pressure action, snap ring 14 will be thereupon up, will be spacing by it when snap ring 14 goes upward to interior stopper slot position, thus realize spacing to pressure reduction sliding sleeve 2.According to demand, the distance snap ring 14 should to be greater than from fixture block 5 upper end to pressure reduction sliding sleeve 2 lower end to the distance of interior stopper slot, can guarantee that fixture block 5 can come off smoothly when pressure reduction sliding sleeve 2 is up like this.
as shown in accompanying drawing 1,2, between slippage land 9 with inner core 1, between corresponding snap ring 14 and slippage annular groove 10 between pressure reduction sliding sleeve 2 and inner core 1 of position, corresponding fixture block 5 top position between inner core 1 and urceolus 4 of position between inner core 1 and urceolus 4, between corresponding fixture block 5 and interior intercommunicating pore 12, corresponding between intercommunicating pore 12 and outer intercommunicating pore 13 position be equipped with sealing ring 8 between inner core 1 and urceolus 4 and between the inner core 1 of corresponding outer intercommunicating pore 13 lower position and urceolus 4.
as shown in accompanying drawing 1,2, the outside of single file sliding sleeve 11 is distributed with the circumferential single file pawl 15 of at least one circle from top to bottom, the upper inner of retaining stop collar 6 be from top to bottom distributed with at least one circle with can the circumferential retaining pawl 16 that matches of circumferential single file pawl 15, the top of retaining stop collar 6 circumferentially has open slot 17 and the upper part of retaining stop collar 6 is divided at least two panels elastic claw 18 by open slot 17.According to demand, distance from the upper end of interior intercommunicating pore 12 to circumferential single file pawl 15 should between the upper end of outer intercommunicating pore 13 to the distance of circumferential retaining pawl 16 and outer intercommunicating pore 13 lower end to circumferential retaining pawl 16 distance, can guarantee like this circumferential single file pawl 15 is descending match as circumferential retaining pawl 16 after the discharge of internal liquid, ensure to rush down carrying out smoothly of liquid.Elastic claw 18 can guarantee that circumferential single file pawl 15 can snap in circumferential retaining pawl 16 smoothly, and elastic claw 18 struts under the effect of single file sliding sleeve 11, realizes up spacing to retaining stop collar 6 thus by limited ring groove.
as shown in accompanying drawing 1,2, the upper outside of lower contact 7 circumferentially limited location the block 19 and upper outside of lower contact 7 is separated at least two anti-rotation chambeies by limited block 19, the lower end of the retaining stop collar 6 of position, corresponding each anti-rotation chamber is fixed with the Anti-rotary block 20 snapped in corresponding anti-rotation chamber.Can to guarantee like this after single file sliding sleeve 11 snaps in retaining stop collar 6 between inner core 1 and urceolus 4 can transmitting torque, and the drop-down strength adopting described limit method can avoid carrying because of single file sliding sleeve 11 between retaining stop collar 6 and lower contact 7 is excessive and cause it to come off in retaining stop collar 6 in the process of upper lifting pipe post.
as shown in accompanying drawing 1,2, between corresponding slippage land 9 upper end and slippage annular groove 10 upper end position inner core 1 sidewall on circumferentially have at least one exhaust hole 21.The up resistance of difference sliding sleeve can be reduced like this, guarantee to press it smooth.
as shown in accompanying drawing 1,2, the upper outside of inner core 1 is fixed with the tubing coupling 22 that can be connected with tubing thread.It is direct-connected that connected pipes box cupling 22 can be convenient to oil pipe, improves operating efficiency.
above technical characteristic constitutes most preferred embodiment of the present utility model, and it has stronger compliance and best implementation result, can increase and decrease non-essential technical characteristic according to actual needs, meet the demand of different situations.
Claims (10)
1. a plug-type tubing string drainage bascule, is characterized in that comprising inner core, pressure reduction sliding sleeve, shear pin, urceolus, fixture block, retaining stop collar and lower contact; The upper inner of inner core is provided with pressure reduction sliding sleeve and both are fixedly installed togather by shear pin, the lower outside of pressure reduction sliding sleeve has slippage land, has slippage annular groove with matching and the upper end of slippage annular groove is positioned at the top of slippage land inside the inner core of corresponding slippage land position; The lower outside of inner core is sleeved on the upper inner of urceolus, between corresponding urceolus upper end and pressure reduction sliding sleeve lower end position inner core sidewall on circumferentially have at least one limiting through hole, limited location groove inside the urceolus of corresponding limiting through hole position, is all provided with the fixture block that can embed in stopper slot in each limiting through hole; The lower end of inner core is fixed with single file sliding sleeve, the lower inside limited location annular groove of urceolus, and the upper inner of limited ring groove is set with the retaining stop collar that can match with single file sliding sleeve, and the lower inside of limited ring groove is installed with lower contact; The inner core sidewall of corresponding fixture block lower position circumferentially has at least one can communicate with pressure reduction sliding sleeve inner chamber in intercommunicating pore, in corresponding intercommunicating pore lower position outer tube side wall on circumferentially have at least one outer intercommunicating pore that can communicate with interior intercommunicating pore after inner core is descending.
2. plug-type tubing string drainage bascule according to claim 1, it is characterized in that the upper outside of the pressure reduction sliding sleeve of corresponding slippage annular groove top position has outer groove, be provided with snap ring in outer groove, the upper inner of the inner core of corresponding outer groove top position has the interior stopper slot of energy limited location snap ring displacement.
3. plug-type tubing string drainage bascule according to claim 2, it is characterized in that between the pressure reduction sliding sleeve of slippage land and position between inner core, between corresponding snap ring and slippage annular groove with inner core, between inner core and urceolus of position between the inner core of corresponding fixture block top position with urceolus, between corresponding fixture block and interior intercommunicating pore, corresponding between intercommunicating pore and outer intercommunicating pore position be equipped with sealing ring between inner core and urceolus and between the inner core of corresponding outer intercommunicating pore lower position and urceolus.
4. the plug-type tubing string drainage bascule according to claim 1 or 2 or 3, it is characterized in that the outside of single file sliding sleeve is distributed with the circumferential single file pawl of at least one circle from top to bottom, the upper inner of retaining stop collar be from top to bottom distributed with at least one circle with can the circumferential retaining pawl that matches of circumferential single file pawl, the top of retaining stop collar circumferentially has open slot and the upper part of retaining stop collar is divided at least two panels elastic claw by open slot.
5. the plug-type tubing string drainage bascule according to claim 1 or 2 or 3, the upper outside that it is characterized in that lower contact circumferentially limited location block and the upper outside of lower contact is separated at least two anti-rotation chambeies by limited block, the lower end of the retaining stop collar of position, corresponding each anti-rotation chamber is fixed with the Anti-rotary block snapped in corresponding anti-rotation chamber.
6. plug-type tubing string drainage bascule according to claim 4, the upper outside that it is characterized in that lower contact circumferentially limited location block and the upper outside of lower contact is separated at least two anti-rotation chambeies by limited block, the lower end of the retaining stop collar of position, corresponding each anti-rotation chamber is fixed with the Anti-rotary block snapped in corresponding anti-rotation chamber.
7. the plug-type tubing string drainage bascule according to claim 1 or 2 or 3 or 6, the inner core sidewall that it is characterized in that position between corresponding slippage land upper end and slippage annular groove upper end circumferentially has at least one exhaust hole.
8. plug-type tubing string drainage bascule according to claim 5, the inner core sidewall that it is characterized in that position between corresponding slippage land upper end and slippage annular groove upper end circumferentially has at least one exhaust hole.
9. the plug-type tubing string drainage bascule according to claim 1 or 2 or 3 or 6 or 8, is characterized in that the upper outside of inner core is fixed with the tubing coupling that can be connected with tubing thread.
10. plug-type tubing string drainage bascule according to claim 5, is characterized in that the upper outside of inner core is fixed with the tubing coupling that can be connected with tubing thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420642170.5U CN204225820U (en) | 2014-10-31 | 2014-10-31 | Plug-type tubing string drainage bascule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420642170.5U CN204225820U (en) | 2014-10-31 | 2014-10-31 | Plug-type tubing string drainage bascule |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204225820U true CN204225820U (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420642170.5U Active CN204225820U (en) | 2014-10-31 | 2014-10-31 | Plug-type tubing string drainage bascule |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204225820U (en) |
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2014
- 2014-10-31 CN CN201420642170.5U patent/CN204225820U/en active Active
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