CN202832433U - Slip downhole restriction chock easy to salve - Google Patents
Slip downhole restriction chock easy to salve Download PDFInfo
- Publication number
- CN202832433U CN202832433U CN 201220366184 CN201220366184U CN202832433U CN 202832433 U CN202832433 U CN 202832433U CN 201220366184 CN201220366184 CN 201220366184 CN 201220366184 U CN201220366184 U CN 201220366184U CN 202832433 U CN202832433 U CN 202832433U
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- CN
- China
- Prior art keywords
- sleeve
- cone
- movable
- seat
- slip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a slip downhole restriction chock easy to salve. The slip downhole restriction chock is designed for achieving a purpose of rubber sleeve retraction. The restriction chock mainly comprises a dispenser connected with a body, a salvage neck sleeved on the body from the top down, a slip fastened with the salvage neck, a tapered base inserted into the bottom end of the slip, a stop block arranged in the tapered base, a tapered base sleeve connected with the tapered base, a rubber sleeve positioned below the tapered base sleeve, a movable cone inserted into the bottom end of the rubber sleeve, a movable sheath connected with a hole at the bottom of the movable cone, a stop block sleeved and connected in a groove in an external wall of the body, a spring sleeved outside the movable sleeve, a lower movable sleeve fastened at the bottom end, a connecting sleeve connected with the lower movable sleeve and fastened with a telescopic claw of the body, a tail cover connected with the connecting sleeve, and an air tap base and an air tap inserted into the body. According to the restriction chock, only one rubber sleeve is arranged, and when the movable cone moves down, a stroke can be reserved for the rubber sleeve, so that the rubber sleeve can retract, a friction force between the rubber sleeve and a well wall is reduced, and the salvage is easier.
Description
Technical field
The utility model relates to a kind of easy fishing slip formula underground throttle device, belongs to the gas exploitation technical field.
Background technology
In natural gas extraction, for step-down, throttling and limited production, underground throttle device usually is installed in the gas well down-hole.At present, the underground throttle device of extensive use is slip-type underground throttle, and this device is admitted to design attitude in the well by piano wire, relies on the slips location, utilizes the annular space between packing element Seal Oil inside pipe wall and device body.Find in the prolonged application process, the packing element of part slip-type underground throttle can't bounce back when salvaging, and pick-up drag is crossed conference and broken steel wire, causes down-hole accident.
Summary of the invention
The purpose of this utility model is to provide a kind of easy fishing slip formula underground throttle device, and this is the underground throttle device that a kind of packing element can bounce back.
Concrete technical scheme of the present utility model is as follows:
Dispenser is connected in the body topped hole by baffle ring and pin, be provided with outer wall fixedly on the body of gingival cyst of mucous gland in the newborn button, be set with successively from top to bottom fishing neck, snapping fishing neck slips, inject the slips cone seat bottom, that be threaded the gingival cyst of mucous gland in the newborn clasp, be located at a block in the cone seat, cone seat and with the cone cover for seat of sealing ring, the activity cone that is positioned at the packing element of cone cover for seat below and inserts the packing element bottom is threaded.The movable cone bottom outlet movable sleeve that is threaded is provided with the block in the socket body unit with grooves in outer wall, movable sleeve outer cover shock mount, movable sleeve under the snapping of bottom in the movable sleeve.Lower movable sleeve inwall is threaded with adapter sleeve, adapter sleeve inboard wall groove snapping body bottom telescopic claw, the adapter sleeve lower end hood that is threaded.The valve seat that connects valve and gas nozzle sealing ring inserts in the hole, body bottom.
This easy fishing slip formula underground throttle device only is provided with single packing element, when the activity cone moves down, can be packing element and abdicates stroke, makes the packing element retraction, reduces the frictional force of packing element and the borehole wall, makes to salvage to be more prone to.
Description of drawings
Fig. 1 is easy fishing slip formula underground throttle device structural representation.
Fig. 2 is the enlarged drawing of gingival cyst of mucous gland in the newborn clasp among Fig. 1.
The specific embodiment
With reference to Fig. 1 and 2 embodiment of the present utility model is further specified:
Embodiment:
This slip-type underground throttle is comprised of dispenser 1, baffle ring 2, pin 3, body 4, fishing neck 5, gingival cyst of mucous gland in the newborn clasp 6, slips 7, cone seat 8, block 9, cone cover for seat 10, sealing ring 11, packing element 12, movable cone 13, block 14, sealing ring 15, spring 16, movable sleeve 17, adapter sleeve 18, movable sleeve 19, valve seat 20, valve 21 and hood 22.
It is as follows that the utility model is thrown in setting process:
With steel wire this restriction choke is transferred to design attitude in the well, carry steel wire on slowly, slips 7 is moved down and stuck in tube inner wall with respect to body 4 and cone seat 8; Carry steel wire in the continuation, make the gingival cyst of mucous gland in the newborn of gingival cyst of mucous gland in the newborn clasp 6 buckle with body 4 fixedly gingival cyst of mucous gland in the newborn buckle engagement, make body 4 bottom telescopic claws take adapter sleeve 18, lower movable sleeve 19 together with moving on the body 4.Move on the lower movable sleeve 19 on Compress Spring 16 and then promotion activity cone 13 and the movable sleeve 17 and move, the conical surface of movable cone 13 struts packing element 12 and contacts with oil pipe and reaches pre-sealed effect.On hit the pin 3 of cutting off dispenser 1 and body 4, setting success.When opening well and making production, because there is pressure reduction in the restriction choke upstream and downstream, hood 22, adapter sleeve 18, body 4 and movable cone 13 further strut packing element 12 with respect to moving on slips 7, gingival cyst of mucous gland in the newborn clasp 6, cone seat 8 and the packing element 12, reach the effect that fully seals with oil pipe.Because body 4 gingival cyst of mucous gland in the newborn buttons are buckled and can only be moved upward with respect to the gingival cyst of mucous gland in the newborn of gingival cyst of mucous gland in the newborn clasp 6, therefore packing element 12 can not bounce back.
The process that the utility model deblocking is salvaged is as follows:
When salvaging restriction choke, at first with special tool valve seat 20 and valve are hit for 21 times in hood 22 chambeies, again with Special fishing tool catch fishing neck 5 and on carry, make slips 7 unfreezings because the barrier effect of baffle ring 2, body 4 is with carrying on it.Because fully contacting, packing element 12 and oil pipe fail to move, movable cone 13 reaches with its connector also fails to move, and the bottom telescopic claw of body 4 is just thrown off adapter sleeve 18, and adapter sleeve 18 reaches with its connector and just moves down with respect to body 4, so that packing element 12 retractions, releasing contacts with oil pipe.Can not throw off with body 4 because the barrier effect of block 14, adapter sleeve 18 reach with its connector, after this instrument trips out well with steel wire one, salvages successfully.
Claims (1)
1. easy fishing slip formula underground throttle device is characterized in that:
Dispenser (1) is connected in body (4) topped hole by baffle ring (2) and pin (3), being provided with outer wall fixedly on the body of gingival cyst of mucous gland in the newborn button (4), be set with successively fishing neck (5) from top to bottom, the slips (7) of snapping fishing neck (5), reeve slips (7) bottom, the cone seat (8) of gingival cyst of mucous gland in the newborn clasp (6) is threaded, be located at the block (9) in the cone seat (8), be threaded and bore the cone cover for seat (10) of seat (8) and band sealing ring (11), the activity cone (13) that is positioned at the packing element (12) of cone cover for seat (10) below and inserts packing element (12) bottom; Movable cone (13) bottom outlet movable sleeve (17) that is threaded, be provided with the block (14) in socket body (4) unit with grooves in outer wall in the movable sleeve (17), movable sleeve (17) outer cover shock mount (16), movable sleeve under the snapping of bottom (19); Lower movable sleeve (19) inwall is threaded with adapter sleeve (18), adapter sleeve (18) inboard wall groove snapping body (4) bottom telescopic claw, adapter sleeve (18) the lower end hood (22) that is threaded; The valve seat (20) that connects valve (21) and gas nozzle sealing ring (15) inserts in body (4) hole, bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220366184 CN202832433U (en) | 2012-07-26 | 2012-07-26 | Slip downhole restriction chock easy to salve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220366184 CN202832433U (en) | 2012-07-26 | 2012-07-26 | Slip downhole restriction chock easy to salve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832433U true CN202832433U (en) | 2013-03-27 |
Family
ID=47944165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220366184 Expired - Fee Related CN202832433U (en) | 2012-07-26 | 2012-07-26 | Slip downhole restriction chock easy to salve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202832433U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563931A (en) * | 2013-10-27 | 2015-04-29 | 中国石油化工集团公司 | Downward-inserting and recycling combined tool for drilling well track measuring instrument |
| CN109339751A (en) * | 2018-10-19 | 2019-02-15 | 中国石油天然气股份有限公司 | It is a kind of easily to bore formula composite throttling device and application method |
| CN110513064A (en) * | 2019-10-12 | 2019-11-29 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | Movable anchoring device and anchorage method in a kind of oil pipe |
| CN109339751B (en) * | 2018-10-19 | 2024-06-25 | 中国石油天然气股份有限公司 | Easy-drilling type composite throttle and use method thereof |
-
2012
- 2012-07-26 CN CN 201220366184 patent/CN202832433U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104563931A (en) * | 2013-10-27 | 2015-04-29 | 中国石油化工集团公司 | Downward-inserting and recycling combined tool for drilling well track measuring instrument |
| CN104563931B (en) * | 2013-10-27 | 2016-12-07 | 中国石油化工集团公司 | Enter under well-drilling borehole trajectory measurement instrument, reclaim tool kit |
| CN109339751A (en) * | 2018-10-19 | 2019-02-15 | 中国石油天然气股份有限公司 | It is a kind of easily to bore formula composite throttling device and application method |
| CN109339751B (en) * | 2018-10-19 | 2024-06-25 | 中国石油天然气股份有限公司 | Easy-drilling type composite throttle and use method thereof |
| CN110513064A (en) * | 2019-10-12 | 2019-11-29 | 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 | Movable anchoring device and anchorage method in a kind of oil pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20210726 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |