CN103206181A - Top packer recovery tool - Google Patents
Top packer recovery tool Download PDFInfo
- Publication number
- CN103206181A CN103206181A CN2013101407769A CN201310140776A CN103206181A CN 103206181 A CN103206181 A CN 103206181A CN 2013101407769 A CN2013101407769 A CN 2013101407769A CN 201310140776 A CN201310140776 A CN 201310140776A CN 103206181 A CN103206181 A CN 103206181A
- Authority
- CN
- China
- Prior art keywords
- packer
- instrument
- grappling
- recovery
- reclaims
- 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.)
- Pending
Links
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The invention relates to a top packer recovery tool which is characterized by comprising an upper connector, a dual-nut coupling, an anchoring claw, an anchoring operating cylinder, an upper mandrel, an adapter, a fishing cylinder, a lower mandrel, a releasing ring and a lower connector, wherein one end of the upper connector is internally connected with the upper mandrel; the anchoring operating cylinder connected with the upper connector is sleeved outside the upper mandrel; the anchoring claw is inserted on the anchoring operating cylinder; the dual-nut coupling is sleeved on the connected part between the anchoring operating cylinder and the upper connector; the other end of the upper mandrel is connected with the lower mandrel; a spring and the fishing cylinder are sequentially sleeved outside the lower mandrel; and the other end of the lower mandrel is connected with the lower connector. The top packer recovery tool has the advantages that the tool can achieve multiple recoverable functions of unsealing, anchoring recovery, grip releasing and the like through a dual-recovery security anchoring mechanism, and is reliable and effective in recovery operation; because the fishing cylinder of the tool is high in design tonnage, recovery after unsealing is achieved through the fishing cylinder, and high-tonnage recovery of a packer can be achieved through the anchoring claw; and the manufacturing cost is low, and the tool can be used for well-completion practice field in oil field development.
Description
Technical field
The invention belongs to the oil field development production technical field, particularly relate to a kind of top packer for gravel pack completion sand control field and reclaim instrument.
Background technology
In known oil field development, along with increasing of deep-well, complicated well drilling exploitation, especially the continuous innovation progress of well-completing process is had higher requirement to every function and the use of completion tool.Top packer recovery instrument is that instrument is reclaimed in the special use of top packer in the gravel filling sand prevention operation, the on-the-spot recovery instrument that uses of drillng operation has multiple structure at present, but we investigate discovery, all there is different separately technical bottlenecks in they, and one is during field operation, because the instrument of recovery elastic claw mechanism is unreliable, can't accurately judge packer whether smoothly deblocking and recovery, can cause the disconnected negative consequence of erroneous judgement, have certain operating risk.Its two, fail effectively separately to separate sealing mechanism and recovery instrument, and the design of fishing socket to reclaim tonnage too small, deblocking and the recovery that can't realize reclaiming the instrument co-located.Its three, traditional recovery instrument does not possess the emergent function of slipping out of the hand, and receives certain influence so make packer reclaim operation.
Summary of the invention
The present invention provides a kind of top packer to reclaim instrument for solving the technical problem that exists in the known technology.
This top packer reclaims instrument, has the anchor mechanism of selective dual recovery insurance, can realize multinomial recyclable functions such as deblocking, grappling are reclaimed, release is slipped out of the hand, and it is reliably effective that it reclaims operation.In addition, because this recoverys instrument fishing socket builder's tonnage is big, not only can realize solution recoverys of being honored as a queen by fishing socket, also can be by the recovery of grappling pawl realization packer large-tonnage.This recovery instrument manufacturing price is low, is conducive to on-the-spot use of completion practice in the oil field development.
The technical scheme that the present invention takes for the technical problem that exists in the solution known technology is:
Top packer reclaims instrument, comprise top connection, two female box cuplings, the grappling pawl, the grappling seating nipple, upper spindle, become the button pipe nipple, be shaped on the fishing socket of elastic claw on it, lower spindle, discharge ring and lower contact, described top connection one end is internally connected with upper spindle, described upper spindle outer cover is equipped with the grappling seating nipple that joins with top connection, be fitted with the grappling pawl on the described grappling seating nipple, described grappling seating nipple and top connection connecting part are set with two female box cuplings, the described upper spindle other end connects lower spindle by becoming the button pipe nipple, described lower spindle outside is set with spring successively, fishing socket is also fixedlyed connected with the lower spindle screw thread by discharging ring, and the lower spindle other end connects lower contact.
The present invention can also adopt following technical scheme:
The contact surface of the elastic claw of described fishing socket and top packer support ring is shaped on for guaranteeing that top packer reclaims the inclined-plane of the maximum holding capacity of instrument.
The bevel angle of the elastic claw of described fishing socket and top packer support ring contact surface is 45 °.
Adopt described top packer to reclaim the method for operating of instrument, comprise the steps:
(1) realizes top packer deblocking and recovery operation
By drilling rod or oil pipe top packer is reclaimed the instrument G.I.H, after putting in place, make the grappling seating nipple be positioned at left-handed side's button top of packer, and play the spacing effect that is lowered to; Press down the 2-3 ton then and make the hold left-handed side button on packer top of grappling pawl, meanwhile the elastic claw of fishing socket stretches out the bottom fitting of top packer; The upper lifting pipe post, the elastic claw of fishing socket contacts with the bottom of packer support ring, on carry pin and shear, make support ring up.Carry in the continuation, can realize the smooth deblocking of packer;
(2) the top packer recovery instrument operation of slipping out of the hand
When on carry in the process and to reclaim when meeting difficulty, cross to carry and reclaim 1～2 ton of tool tubular column, just changeing the 10-15 circle, make to discharge ring and the smooth back-off of lower spindle connection of thread, cause the elastic claw withdrawal of fishing socket.Meanwhile, the grappling pawl that reclaims instrument is also smashed from the left-handed side at packer top and is slipped out of the hand, and reclaims instrument like this and just can propose from packer;
(3) use the operation of grappling pawl secondary recovery packer
Again cleaning down packer top, the instrument that will reclaim inserts packer again, makes the grappling pawl of recovery instrument enter left-handed side's button of top packer smoothly, relies on to reclaim the bigger grappling pawl of tonnage and reclaim, and reclaims smoothly until packer.
Advantage and good effect that the present invention has are: because the present invention adopts technique scheme, the contact surface of described fishing socket elastic claw and top packer support ring is designed to the inclined-plane, namely reclaim stress surface and power vertical relation, guaranteed to reclaim the maximization of instrument holding capacity, can realize the solution recovery of being honored as a queen by fishing socket, also can realize that the packer large-tonnage reclaims by the grappling pawl.Reclaim instrument grappling pawl by top packer and inject top packer realization grappling, and grappling pawl and cutting mechanism relative position free distance, guaranteed that the elastic claw of packer recovery instrument is stressed, the stressed dual fail-safe design of the back grappling pawl that lost efficacy.Fishing socket elastic claw stress is slipped out of the hand, and is just changeing and is realizing discharging ring and the disengaging of axle screw thread, and the fishing socket elastic claw lost efficacy, and the grappling pawl is thrown off, and has namely realized separating of recovery instrument and top packer.This instrument can be realized multinomial recyclable functions such as deblocking, grappling are reclaimed, release is slipped out of the hand by the anchor mechanism of selective dual recovery insurance, and it is reliably effective that it reclaims operation.
This top packer reclaims instrument and not only can cooperate multiple packers such as the top packer of outer sand preventing tool and sump packer to realize setting operation, and the cooperating of the elastic claw by the hydraulic setting instrument and conversion sleeve mechanism and top packer, can effectively prevent the packer premature setting.In addition, this recovery instrument assembly program is simple, the execute-in-place process is convenient and safe and reliable.
Description of drawings
Fig. 1 is the structural representation of invention.
Among the figure: 1, top connection; 2, first dog screw; 3, two female box cuplings; 4, grappling pawl; 5, grappling seating nipple; 6, upper spindle; 7, second dog screw; 8, become the button pipe nipple; 9, spring; 10, fishing socket; 10-1, elastic claw; 10-2, inclined-plane; 11, lower spindle; 12, discharge ring; 13, lower contact.
The specific embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1, top packer reclaims instrument, comprises top connection 1, two female box cupling 3, grappling pawl 4, grappling seating nipple 5, upper spindle 6, becomes button pipe nipple 8, the fishing socket 10 that is shaped on elastic claw 10-1 on it, lower spindle 11, discharges ring 12 and lower contact 13.Described top connection one end is internally connected with upper spindle 6, and fixing by first dog screw 2.In described upper spindle outer cover the grappling seating nipple 5 that joins with top connection is housed, is fitted with grappling pawl 4 on the described grappling seating nipple, described grappling seating nipple and top connection connecting part are set with two female box cuplings 3.The described upper spindle other end passes through to become the button pipe nipple and connects lower spindle 11, and described upper spindle is fixed by second dog screw 7 and change button pipe nipple.Described lower spindle outside is set with spring 9, fishing socket 10 from left to right successively and fixedlys connected lower spindle other end connection lower contact 13 by discharging ring 12 with the lower spindle screw thread.
In the present embodiment, the contact surface of the elastic claw of described fishing socket and top packer support ring is shaped on for guaranteeing that top packer reclaims the inclined-plane 10-2 of the maximum holding capacity of instrument, and the bevel angle of the elastic claw of described fishing socket and top packer support ring contact surface is 45 °.Make recovery stress surface and the power vertical relation of this recovery instrument, and then guaranteed the maximization of this recovery instrument holding capacity.
Top packer reclaims the method for operating of instrument, comprises the steps:
(1) realizes top packer deblocking and recovery operation
By drilling rod or oil pipe top packer is reclaimed the instrument G.I.H, after putting in place, make grappling seating nipple 5 be positioned at left-handed side's button top of packer, and play the spacing effect that is lowered to; Press down the 2-3 ton then and make the hold left-handed side button on packer top of grappling pawl 4, meanwhile the elastic claw 10-1 of fishing socket 10 stretches out the bottom fitting of top packer; The upper lifting pipe post, the elastic claw of fishing socket contacts with the bottom of packer support ring, on carry pin and shear, make support ring up.Carry in the continuation, can realize the smooth deblocking of packer;
(2) the top packer recovery instrument operation of slipping out of the hand
When on carry in the process and to reclaim when meeting difficulty, cross to carry and reclaim 1～2 ton of tool tubular column, just changeing the 10-15 circle, make to discharge ring 12 and the smooth back-off of lower spindle 11 connection of thread, cause the elastic claw withdrawal of fishing socket.Meanwhile, the grappling pawl that reclaims instrument is also smashed from the left-handed side at packer top and is slipped out of the hand, and reclaims instrument like this and just can propose from packer;
(3) use the operation of grappling pawl secondary recovery packer
Again cleaning down packer top, the instrument that will reclaim inserts packer again, makes the grappling pawl of recovery instrument enter left-handed side's button of top packer smoothly, relies on to reclaim the bigger grappling pawl of tonnage and reclaim, and reclaims smoothly until packer.
Claims (4)
1. a top packer reclaims instrument, it is characterized in that: comprise top connection, two female box cuplings, the grappling pawl, the grappling seating nipple, upper spindle, become the button pipe nipple, be shaped on the fishing socket of elastic claw on it, lower spindle, discharge ring and lower contact, described top connection one end is internally connected with upper spindle, described upper spindle outer cover is equipped with the grappling seating nipple that joins with top connection, plug-in mounting grappling pawl on the described grappling seating nipple, described grappling seating nipple and top connection connecting part are set with two female box cuplings, the described upper spindle other end connects lower spindle by becoming the button pipe nipple, described lower spindle outside is set with spring successively, fishing socket is also fixedlyed connected with the lower spindle screw thread by discharging ring, and the lower spindle other end connects lower contact.
2. top packer according to claim 1 reclaims instrument, it is characterized in that: the contact surface of the elastic claw of described fishing socket and top packer support ring is shaped on for guaranteeing that top packer reclaims the inclined-plane of the maximum holding capacity of instrument.
3. top packer according to claim 2 reclaims instrument, and it is characterized in that: the bevel angle of the elastic claw of described fishing socket and top packer support ring contact surface is 45 °.
4. the method for operating of a top packer recovery instrument is characterized in that: comprise the steps:
(1) realizes top packer deblocking and recovery operation
By drilling rod or oil pipe top packer is reclaimed the instrument G.I.H, after putting in place, make the grappling seating nipple be positioned at left-handed side's button top of packer, and play the spacing effect that is lowered to; Press down the 2-3 ton then and make the hold left-handed side button on packer top of grappling pawl, meanwhile the elastic claw of fishing socket stretches out the bottom fitting of top packer; The upper lifting pipe post, the elastic claw of fishing socket contacts with the bottom of packer support ring, on carry pin and shear, make support ring up.Carry in the continuation, can realize the smooth deblocking of packer;
(2) the top packer recovery instrument operation of slipping out of the hand
When on carry in the process and to reclaim when meeting difficulty, cross to carry and reclaim 1～2 ton of tool tubular column, just changeing the 10-15 circle, make to discharge ring and the smooth back-off of lower spindle connection of thread, cause the elastic claw withdrawal of fishing socket.Meanwhile, the grappling pawl that reclaims instrument is also smashed from the left-handed side at packer top and is slipped out of the hand, and reclaims instrument like this and just can propose from packer;
(3) use the operation of grappling pawl secondary recovery packer
Again cleaning down packer top, the instrument that will reclaim inserts packer again, makes the grappling pawl of recovery instrument enter left-handed side's button of top packer smoothly, relies on to reclaim the bigger grappling pawl of tonnage and reclaim, and reclaims smoothly until packer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101407769A CN103206181A (en) | 2013-04-22 | 2013-04-22 | Top packer recovery tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101407769A CN103206181A (en) | 2013-04-22 | 2013-04-22 | Top packer recovery tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103206181A true CN103206181A (en) | 2013-07-17 |
Family
ID=48753568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101407769A Pending CN103206181A (en) | 2013-04-22 | 2013-04-22 | Top packer recovery tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103206181A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355195A (en) * | 2017-04-28 | 2017-11-17 | 北京捷威思特科技有限公司 | Formation testing samples twin packer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5988287A (en) * | 1997-07-03 | 1999-11-23 | Baker Hughes Incorporated | Thru-tubing anchor seal assembly and/or packer release devices |
| CN2565975Y (en) * | 2002-08-06 | 2003-08-13 | 大庆油田有限责任公司 | Forced desealing back-off packer |
| CN201024938Y (en) * | 2007-03-14 | 2008-02-20 | 中国海洋石油总公司 | A hydraulic pressure release and salvage tool |
| CN102587882A (en) * | 2012-03-18 | 2012-07-18 | 荆州市赛瑞能源技术有限公司 | Recoverable once pipe column fracture-acidizing well completion process and tool thereof |
| WO2012140201A2 (en) * | 2011-04-15 | 2012-10-18 | Extreme Invent As | Bridge plug tool |
| CN203213988U (en) * | 2013-04-22 | 2013-09-25 | 中国海洋石油总公司 | Tool for recycling top packer |
-
2013
- 2013-04-22 CN CN2013101407769A patent/CN103206181A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5988287A (en) * | 1997-07-03 | 1999-11-23 | Baker Hughes Incorporated | Thru-tubing anchor seal assembly and/or packer release devices |
| CN2565975Y (en) * | 2002-08-06 | 2003-08-13 | 大庆油田有限责任公司 | Forced desealing back-off packer |
| CN201024938Y (en) * | 2007-03-14 | 2008-02-20 | 中国海洋石油总公司 | A hydraulic pressure release and salvage tool |
| WO2012140201A2 (en) * | 2011-04-15 | 2012-10-18 | Extreme Invent As | Bridge plug tool |
| CN102587882A (en) * | 2012-03-18 | 2012-07-18 | 荆州市赛瑞能源技术有限公司 | Recoverable once pipe column fracture-acidizing well completion process and tool thereof |
| CN203213988U (en) * | 2013-04-22 | 2013-09-25 | 中国海洋石油总公司 | Tool for recycling top packer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355195A (en) * | 2017-04-28 | 2017-11-17 | 北京捷威思特科技有限公司 | Formation testing samples twin packer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202866673U (en) | Clamping claw type release connector | |
| CN203213988U (en) | Tool for recycling top packer | |
| CN201155320Y (en) | High-temperature high pressure removable bridge plug | |
| CN103206181A (en) | Top packer recovery tool | |
| CN203948053U (en) | Elevator chuck | |
| CN210396684U (en) | Integral returnable large-tonnage integrated overshot | |
| CN104074482A (en) | Elevator spider | |
| CN201843556U (en) | Hydraulic withdrawable overshot | |
| CN202325384U (en) | Horizontal well falling object protecting tool | |
| CN203783520U (en) | Large-diameter releasing hanging packer | |
| CN201027515Y (en) | Returnable milling fisher | |
| CN202767942U (en) | Difunctional release bridge plug for horizontal well | |
| CN201738832U (en) | Back-off safety joint | |
| CN201501752U (en) | Anti-rotation bolt for revolving platform of crawler crane | |
| CN204040973U (en) | A kind of oil pipe combination fishing socket | |
| CN202544760U (en) | Hydraulic separator for coiled tubing | |
| CN202431243U (en) | Fishing socket for borehole operation | |
| CN201778718U (en) | Anti-ejection locking fishing spear | |
| CN201236653Y (en) | Feeding/retracting tool of oil layer protection valve | |
| CN202064852U (en) | Multi-purpose safety joint | |
| CN2931758Y (en) | New pattern on-off connector of oil field | |
| CN204877327U (en) | Novel unload brill holder | |
| CN208106360U (en) | Internal-and external diameter salvages buffer-type back-off sub | |
| CN201546662U (en) | Rear-mounted underground throttler | |
| CN214247258U (en) | Fishing fish male cone in pit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130717 |