CN201650179U - Packer type sleeve repairing and connecting device with spiral slip - Google Patents

Packer type sleeve repairing and connecting device with spiral slip Download PDF

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Publication number
CN201650179U
CN201650179U CN2009203178570U CN200920317857U CN201650179U CN 201650179 U CN201650179 U CN 201650179U CN 2009203178570 U CN2009203178570 U CN 2009203178570U CN 200920317857 U CN200920317857 U CN 200920317857U CN 201650179 U CN201650179 U CN 201650179U
Authority
CN
China
Prior art keywords
slips
spiral
tooth
urceolus
thread
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
Application number
CN2009203178570U
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Chinese (zh)
Inventor
胡卫宇
黄保黔
张亚昌
蒋世华
张泽丽
张发贵
熊云国
兰键
李汇平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guizhou Gaofeng Petroleum Machinery Co Ltd
Original Assignee
Guizhou Gaofeng Petroleum Machinery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guizhou Gaofeng Petroleum Machinery Co Ltd filed Critical Guizhou Gaofeng Petroleum Machinery Co Ltd
Priority to CN2009203178570U priority Critical patent/CN201650179U/en
Application granted granted Critical
Publication of CN201650179U publication Critical patent/CN201650179U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a packer type sleeve repairing and connecting device with a spiral slip. An upper connector (1), a slip outer cylinder (5), a sealing cylinder (10) and a guiding shoe (12) are sequentially connected with each other to be formed into a tubular component; the upper port of the slip outer cylinder (5) is internally provided with a forward and reverse lip type sealing ring (2) and a protecting cover (3); the inner wall of the lower part of the slip outer cylinder (5) is provided with a wide saw tooth-shaped screw thread (4); a spiral slip (6) is screwed in the wide saw tooth-shaped screw thread (4); the outer surface of the spiral slip (6) is fitted with the wide saw tooth-shaped screw thread (4) of the slip outer cylinder (5); the inner surface of the spiral slip (6) is provided with a saw tooth-shaped screw thread clamp tooth (15); and a lip type sealing ring (11) is arranged in the lower port of a sealing cylinder (10). The outer diameter of the device can be smaller, and the well diameter which needs to be milled before taking and changing the sleeve is correspondingly smaller, so that the device can reduce the work amount of the milling.

Description

Adopt the packer type sleeve pipe rejoining device of spiral slips
Technical field
The utility model relates to a kind of oil gas field sleeve pipe fix tool, particularly a kind of packer type sleeve pipe rejoining device that adopts the spiral slips.
Background technology
Along with the development of oilfield exploitation, be subjected to multiple factor effect, casing damage in oil-water well is serious, produces tube wall breakage, distortion even bad break, has had a strong impact on the ordinary production in oil field.The manipulating object of getting the casing replacing method is the serious bad break of sleeve pipe, is out of shape, breaks, leaks outside, general operation process be by cover mill, operation such as cutting takes out run-down position and upper sleeve thereof, be lowered to new casing and connect with remaining intact sleeve pipe in the well, take the well cementation or the mode completion of not cementing the well then as required, can recover all technical indicators and the function of former well, be to repair the most thorough and effective method of casing damaged well.Chinese patent 00212071.2 " packer type sleeve pipe rejoining device " has been described and has a kind ofly been got, the casing replacing rejoining device, the element of catching the well inner sleeve to finish new and old sleeve pipe connection is basket slips, this slips needs adequate thickness, otherwise " basket " can be fragmented into several vertical bars, therefore the outside dimension of this rejoining device is big more a lot of than sleeve pipe, has increased to get, change the engineering quantity that cover operation protheca mills hole diameter.
The utility model content
Technical problem to be solved in the utility model is to provide the packer type sleeve pipe rejoining device of the employing spiral slips that a kind of outside dimension can be littler, reduces cover as far as possible and mills workload, thereby overcome the deficiencies in the prior art.
For solving the problems of the technologies described above the technical solution of the utility model: the packer type sleeve pipe rejoining device that adopts the spiral slips.Its formation comprises top connection, slips urceolus, spiral slips, sealing drum, lip seal circle and guide shoe, and described top connection, slips urceolus, sealing drum and guide shoe are connected into a tubular assembly in turn; Forward and reverse lip seal circle and protective sleeve are housed in the upper port of slips urceolus, wide saw-tooth thread are arranged in the lower inner wall of slips urceolus; The spiral slips screws in wide saw-tooth thread, and wide saw-tooth thread of the external surface of spiral slips and slips urceolus fitted, and the inner surface of spiral slips has saw-tooth thread card tooth, can nip and catch down-hole casing; The lip seal circle is contained in the lower port of sealing drum.
The packer type sleeve pipe rejoining device of above-mentioned employing spiral slips, described spiral slips are that cross sectional shape is the cylindrical spring of wedge shape, are welded with down to move back at its lower end head and grab the card key.
The packer type sleeve pipe rejoining device of aforesaid employing spiral slips is equipped with gate ring below described spiral slips, be provided with head wedge-shaped card key up on gate ring, and wedge-shaped card key and moving back is grabbed the card key together in the circlip groove of kayser on the slips outer tube inner wall.
The packer type sleeve pipe rejoining device of aforesaid employing spiral slips, the right side of described wedge-shaped card key is shaped as the right-angled triangle pyramid, and its pyramid summit is down, acute angle end points of pyramid bottom surface constitutes the right-hand member the top of the horn point of wedge-shaped card key inboard.
The packer type sleeve pipe rejoining device of aforesaid employing spiral slips, the sawtooth thread form of described wide saw-tooth thread and the angle theta 1 of the axis of thread and θ 2 are respectively 90 ° and 7 °~10 °, fillet R is 0.5~1.2mm at the bottom of the tooth, and helical pitch S is 35~65mm, and number of starts is 1.
The beneficial effects of the utility model: compared with prior art, the utility model is used to take out the new and old sleeve pipe that damages when being lowered to new casing again behind the sleeve pipe and connects instrument, its external diameter can be less, change cover to need to overlap the hole diameter that mills before the operation corresponding smaller getting, thereby can reduce the engineering quantity that cover mills.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the saw-tooth thread enlarged diagram of spiral slips and slips urceolus;
Fig. 3 is the perspective view of spiral slips, slips urceolus and gate ring;
Fig. 4 is the A-A sectional view of Fig. 3.
Below in conjunction with the drawings and specific embodiments the utility model is further described.
The specific embodiment
Embodiment 1.As shown in Figure 1, comprise top connection 1, slips urceolus 5, spiral slips 6, sealing drum 10 and guide shoe 12, top connection 1, slips urceolus 5, sealing drum 10 and guide shoe 12 are connected into a tubular assembly in turn by screw thread; Forward and reverse lip seal circle 2 and protective sleeve 3 are housed in the upper port of slips urceolus 5, and the top connection 1 lower end screw thread slips urceolus 5 that spins is positioned at forward and reverse lip seal circle 2 in the upper port of slips urceolus 5, and the center is the protective sleeve 3 on sealing lip limit.Lower inner wall at slips urceolus 5 is dug left-handed wide the saw-tooth thread 4 that coarse pitch is arranged; The sawtooth thread form of wide saw-tooth thread 4 and the angle theta 1 of the axis of thread 16 and θ 2 are respectively 90 ° and 7 °~10 °, and fillet R is 0.5~1.2mm at the bottom of the tooth, and nominal diameter is D, and helical pitch S is 35~65mm, and number of starts is 1, as shown in Figure 2.Spiral slips 6 screws in wide saw-tooth thread 4, and wide the saw-tooth thread 4 of the external surface of spiral slips 6 and slips urceolus 5 fitted, and the inner surface of spiral slips 6 has fine and closely woven saw-tooth thread card tooth 15.Spiral slips 6 is that cross sectional shape is the cylindrical spring of wedge shape, is welded with down to move back at its lower end head and grabs card key 8.Spiral slips 6 outward appearances are outer saw-tooth threads, compare with wide saw-tooth thread 4 on the slips urceolus 5: the angle of the form of thread and the axis of thread is consistent, helical pitch unanimity, nominal diameter D1 are 2~8mm, number of starts is 2, the height H of cross section wedge shape is 1~3mm, the wedge shape inboard is a saw-tooth thread card tooth 15 in the bull, saw-tooth thread card tooth 15 is compared with wide saw-tooth thread 4 on the slips urceolus 5 in the bull: helical pitch is consistent, nominal diameter D2 is 8~15mm, and pitch M is 2~4mm.Gate ring 9 is housed below spiral slips 6, on gate ring 9, be provided with head wedge-shaped card key 7 up, wedge-shaped card key 7 and moving back is grabbed card key 8 together in the circlip groove 14 of kayser on slips urceolus 5 inwalls, and gate ring 9 is positioned in the lower port of slips urceolus 5 by the sealing drum 10 that screw thread spins.The right side of wedge-shaped card key 7 is shaped as the right-angled triangle pyramid, and its pyramid summit down, acute angle end points of pyramid bottom surface constitutes the right-hand member the top of the horn point 13 of wedge-shaped card key 7 inboards.Lip seal circle 11 is positioned in the lower port of sealing drum 10 by the guide shoe 12 that screw thread spins.
When a part sleeve pipe in the well damages; adopt cover miller preface that the above sleeve pipe of breakage is all taken out earlier; again the utility model being connected in new casing goes into the well bottom; slowly instrument is transferred in right rotation on one side on one side; down-hole casing is stirred to guide to enter through guide shoe 12 and is passed lip seal circle 11; after promotion spiral slips 6 is up to the big end of wide saw-tooth thread 4; the space that spiral slips 6 has had radial elastic to uphold; down-hole casing heads into distending and passes through spiral slips 6; promotion protective sleeve 3 is up to touching top connection 1 and is obstructed; at this moment stopping dextrorotation rotating and the upper lifting pipe post; it is descending that spiral slips 6 fine and closely woven saw-tooth thread card teeth 15 are bitten the relative slips urceolus of down-hole casing 5; wide the saw-tooth thread 4 of the wedge shape external surface of spiral slips 6 and slips urceolus 5 fitted; constitute the sliding pair of taper seat; on to carry load big more; spiral slips 6 diameters shrink banding all the more and bite down-hole casing; because the sealing lip limit of forward and reverse lip seal circle 2 and lip seal circle 11 rides on the down-hole casing external diameter; the passage that has cut off the interior space of new casing and the down-hole casing external space; new and old sleeve pipe connects one, finishes to mend to connect.Withdraw from this rejoining device if desired, at first apply downforce, slowly dextrorotation is rotated again, carries on subsequently, can withdraw from.Press down be make spiral slips 6 break away from slips urceolus 5 on the contacting of wide saw-tooth thread 4, move upward to the big end of circular cone of wide saw-tooth thread 4 relatively; It is that the wedge-shaped card key 7 that the circlip groove 14 on slips urceolus 5 inwalls is driven on the gate ring 9 is turned right moving together that dextrorotation is rotated, make 13 wedgings of right-hand member the top of the horn point move back the inboard of grabbing card key 8, outwards pry open the lower end of left-handed spiral slips 6, force that spiral slips 6 is initial from the lower end to be unclamped the down-hole casing that volume tightly wales and enter the state of swelling; On carry and withdrawing to well head making new casing recess down-hole casing together with this rejoining device.
Embodiment of the present utility model is not limited to the foregoing description, all belongs within the protection domain of the present utility model in the various variations of making under the prerequisite that does not break away from the utility model aim.

Claims (5)

1. packer type sleeve pipe rejoining device that adopts the spiral slips, comprise top connection (1), slips urceolus (5), spiral slips (6), sealing drum (10), lip seal circle (11) and guide shoe (12), it is characterized in that: described top connection (1), slips urceolus (5), sealing drum (10) and guide shoe (12) are connected into a tubular assembly in turn; Forward and reverse lip seal circle (2) and protective sleeve (3) are housed in the upper port of slips urceolus (5), wide saw-tooth thread (4) are arranged in the lower inner wall of slips urceolus (5); Spiral slips (6) screws in wide saw-tooth thread (4), and wide the saw-tooth thread (4) of the external surface of spiral slips (6) and slips urceolus (5) fitted, and the inner surface of spiral slips (6) has saw-tooth thread card tooth (15); Lip seal circle (11) is contained in the lower port of sealing drum (10).
2. the packer type sleeve pipe rejoining device of employing spiral slips according to claim 1 is characterized in that: described spiral slips (6) is that cross sectional shape is the cylindrical spring of wedge shape, is welded with down to move back at its lower end head and grabs card key (8).
3. the packer type sleeve pipe rejoining device of employing spiral slips according to claim 2, it is characterized in that: gate ring (9) is housed in described spiral slips (6) below, be provided with head wedge-shaped card key (7) up on gate ring (9), wedge-shaped card key (7) and moving back is grabbed card key (8) together in the circlip groove (14) of kayser on slips urceolus (5) inwall.
4. the packer type sleeve pipe rejoining device of employing spiral slips according to claim 3, it is characterized in that: the right side of described wedge-shaped card key (7) is shaped as the right-angled triangle pyramid, and its pyramid summit down, acute angle end points of pyramid bottom surface constitutes the inboard right-hand member the top of the horn point (13) of wedge-shaped card key (7).
5. the packer type sleeve pipe rejoining device of employing spiral slips according to claim 1, it is characterized in that: the angle theta 1 of the sawtooth thread form of described wide saw-tooth thread (4) and the axis of thread (16) and θ 2 are respectively 90 ° and 7 °~10 °, fillet R is 0.5~1.2mm at the bottom of the tooth, helical pitch S is 35~65mm, and number of starts is 1.
CN2009203178570U 2009-12-18 2009-12-18 Packer type sleeve repairing and connecting device with spiral slip Expired - Fee Related CN201650179U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009203178570U CN201650179U (en) 2009-12-18 2009-12-18 Packer type sleeve repairing and connecting device with spiral slip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009203178570U CN201650179U (en) 2009-12-18 2009-12-18 Packer type sleeve repairing and connecting device with spiral slip

Publications (1)

Publication Number Publication Date
CN201650179U true CN201650179U (en) 2010-11-24

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Family Applications (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103225485A (en) * 2013-05-06 2013-07-31 重庆望江工业有限公司 Releasing type spiral slip overshot
CN103628836A (en) * 2013-11-07 2014-03-12 江苏君鑫谊石油机械有限公司 Multifunctional casing coupling repairing and connecting device
CN103643914A (en) * 2013-11-08 2014-03-19 江苏君鑫谊石油机械有限公司 Multifunctional bushing self-sealing repair and connection device
CN104929558A (en) * 2015-06-23 2015-09-23 中国石油集团渤海钻探工程有限公司 Fixed-point sleeve taking and replacement process method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103225485A (en) * 2013-05-06 2013-07-31 重庆望江工业有限公司 Releasing type spiral slip overshot
CN103628836A (en) * 2013-11-07 2014-03-12 江苏君鑫谊石油机械有限公司 Multifunctional casing coupling repairing and connecting device
CN103643914A (en) * 2013-11-08 2014-03-19 江苏君鑫谊石油机械有限公司 Multifunctional bushing self-sealing repair and connection device
CN104929558A (en) * 2015-06-23 2015-09-23 中国石油集团渤海钻探工程有限公司 Fixed-point sleeve taking and replacement process method

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101124

Termination date: 20161218

CF01 Termination of patent right due to non-payment of annual fee