CN2856384Y - Hydraulic releasing gadget for drillable thin-wall tail pipe - Google Patents
Hydraulic releasing gadget for drillable thin-wall tail pipe Download PDFInfo
- Publication number
- CN2856384Y CN2856384Y CN 200620025234 CN200620025234U CN2856384Y CN 2856384 Y CN2856384 Y CN 2856384Y CN 200620025234 CN200620025234 CN 200620025234 CN 200620025234 U CN200620025234 U CN 200620025234U CN 2856384 Y CN2856384 Y CN 2856384Y
- Authority
- CN
- China
- Prior art keywords
- locking
- central axis
- urceolus
- ball
- thin
- 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 - Lifetime
Links
Images
Abstract
The utility model relates to a hydraulic off-hand device capable of getting into thin-wall tail pipe. The device mainly comprises an outer tube, an outer tube extended tube, a middle tube and a loading tool top joint. The outer tube with a righting sleeve equipped on its top is wedged into and limited by a torque transmission slot through a outer tube ratchet; in the central shaft, by a shear pin and a shear pinhole, a locking-unlocking mechanism is fixed whose bottom end is connected with a ball-guiding sleeve by screw thread; both the outer tube and the central shaft have a plurality of ball sockets disposed correspondingly and locking is achieved by a locking ball; on the outer wall in the middle of the locking-unlocking mechanism, no less than one unlocking annular recess is arranged; on the bottom of the locking-unlocking mechanism, a ball seat is fixed. The utility has the following advantages: the device is capable of rotating, lifting, dropping and cycling during getting-in; the outer tube wall thickness is similar to that of the tail pipe, thereby the tail pipes leaved in the original hole of the four-level multi-bottom branch well during interpenetrate is easy to mill and interpenetrate the lower part of the well bore; and the device has simple operation, low cost and high reliability.
Description
Technical field
The utility model belongs to the oil field welldrilling tail pipe and hangs technical field, particularly relates to a kind of level Four multi-bottom branch well that is used for than top branch well hole drillable thin-walled hydraulic release device for liner.
Background technology
For drilling liner cementing device in the oil drilling, at present existing a lot of technological development are come out, but because the various complex conditions of down-hole, being lowered to tail pipe, running tool and tail pipe string slips out of the hand still relatively more difficult, especially level Four multi-bottom branch well and high angle hole drilling liner cementing, requirement is lowered in the process and can also realizes circulation by rotary moveable pipe string at tail pipe, after putting in place, realizes tail pipe slipping out of the hand, and when linking up for level Four multi-bottom branch well main borehole, then need the tail pipe in the main borehole to be easy to overlap to mill link up the bottom pit shaft, the research of this respect at present still belongs to blank.The present existing tail pipe technology of slipping out of the hand mainly contains: left-hand thread is just changeing slips out of the hand, because just changeing to make the tail pipe string slip out of the hand, slip out of the hand in design and can not rotate during well section more than the degree of depth is lowered to, for easy generation undergauge or the well that collapses exist can't tail pipe down to the risk of projected depth, even down to the design well depth also may since when rotating the tail pipe string can not provide reaction torque and can't slip out of the hand its poor reliability; Hydraulic pressure is slipped out of the hand, in oil and gas exploitation industry, also use to some extent for many years, at present in the world, the research that tail pipe hydraulic pressure is slipped out of the hand had some successful examples, all have separately the tail pipe hydraulic pressure instrument of slipping out of the hand as international petroleum service companies such as baker oil tool, Vad good fortune, Harry's crust, Schlumbergers, but after carrying out and to slip out of the hand, stays by their instrument instrument wall thickness under the pit shaft usually more than 22mm, and milling difficulty when being used for overlapping when multistage multi-bottom branch well is linked up the dominant eye well, inefficiency, expense costliness and delivery date are long.
Summary of the invention
The utility model for solve the technical problem that exists in the known technology provide a kind of with tail tube hanging on running tool, with drilling rod send the tail pipe string the light wall pipe wall, rotatablely creep into, be easy to that the down-hole cover mills is used for the drillable thin-walled hydraulic release device for liner of level Four multi-bottom branch well than the top branch well hole.
The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
Drillable thin-walled hydraulic release device for liner, mainly comprise urceolus, the urceolus lower end is connected with the urceolus exntension tubs, be provided with central axis in the urceolus, the central axis top is connected with the running tool top sub by safety screw, it is characterized in that: the urceolus that wall thickness is close with the tail pipe wall thickness is spacing by the urceolus ratchet and the merging of the transmission of the moment of torsion on central axis slot wedge on top, by screw thread supporting positive cover is installed at the urceolus top, in central axis, be fixed with the locking release mechanism by shear pin, ball cover is led in this locking release mechanism lower end by being threaded, the central axis reducer union of leading ball cover and its downside can relatively move, the central axis reducer union center extension that is threaded, correspondence is provided with several urceolus locking ball-and-sockets and central axis locking ball-and-socket respectively on urceolus and central axis, urceolus and central axis are by the locking of locking ball, be provided with the release cannelure that is no less than a circle on the outer wall at locking release mechanism middle part, locking release mechanism top to inwall between the release cannelure is fixed with ball seat.
The utility model also adopts following technical measures:
Described locking release mechanism design is cylindric, its top has relief hole, reversing port successively between the release cannelure, release cannelure downside has the non-return pin hole, and the non-return pin is compressed in the non-return pin hole by non-return pin spring and non-return pin pressure cap.
Described urceolus locking ball-and-socket and the design of central axis locking ball-and-socket are tapered, and the centre of sphere of locking ball is arranged on the center shaft body.
Central axis safety screw one side has shear pin pin-and-hole, reversing port and pilot groove successively, and central axis has the non-return cotter slot corresponding to the downside of locking release mechanism non-return pin hole.
Have pressure transmission hole leading on the ball cover body.
Advantage and the good effect that the utlity model has are: the urceolus ratchet at the utility model urceolus top and the moment of torsion on the central axis transmit slot wedge and merge spacing, when the tail pipe string is being lowered to when being hampered in the process, can apply moment of torsion to the tail pipe string by drilling rod, central axis moment of torsion transmission groove and urceolus ratchet and realize rotation, solve existing tail pipe instrument and be lowered to the difficult problem that the chance card can not rotate in the process at tail pipe; Urceolus and central axis are the locking release mechanism lockings of adopting locking ball and taper locking ball-and-socket, and the centre of sphere that will lock ball is arranged in the center shaft body, the restriction that utilizes hydraulic way to remove the locking ball simultaneously makes the metal locking ball leave latched position, thereby remove the suspension locking of running tool and tail pipe string, the urceolus wall thickness of staying the down-hole is designed to close with the tail pipe wall thickness, level Four multi-bottom branch well main borehole is stayed tail pipe assembly in the main borehole and is easy to cover and mills and link up the bottom pit shaft when linking up, this not only saves steel, improve the cover miller and make efficient, but also can reduce operating cost; The utility model also has simple in structure, easy and simple to handle, low cost of manufacture and advantage such as safe and reliable in addition.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the A portion enlarged drawing of Fig. 1;
Fig. 3 is the I portion enlarged drawing of Fig. 1;
Fig. 4 is the II portion enlarged drawing of Fig. 1;
Fig. 5 is the III portion enlarged drawing of Fig. 1.
Among the figure: 1 urceolus, 1-1 urceolus ratchet, 1-2 urceolus locking ball-and-socket, 2 urceolus exntension tubs, 3 central axiss, 3-1 central axis sealing ring, the 3-2 moment of torsion transmits groove, the 3-3 safety screw, the 3-4 reversing port, 3-5 pilot groove, 3-6 non-return cotter slot, 3-7 central axis locking ball-and-socket, 4 locking balls, 5 central axis reducer unions, 6 center extensions, 7 locking release mechanisms, the 7-1 ball seat, the sealing of 7-1-1 ball seat, the 7-1-2 ball seat is led ball cover, 7-2 release cannelure, the 7-3 relief hole, the 7-4 reversing port, 7-5 locking release sealing ring, 7-6 leads ball cover, 7-6-1 leads the ball cover pressure transmission hole, 8 separate lock ball, 9 running tool top sub, 9-1 top sub safety screw, the 9-2 sealing ring, 10 tail pipes, 11 shear pins, 12 non-return pins, 12-1 non-return pin spring, 12-2 non-return pin pressure cap, 13 supporting positive covers.
The specific embodiment
For further specifying summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1-Fig. 5, drillable thin-walled hydraulic release device for liner, mainly comprise urceolus 1, the urceolus lower end is connected with urceolus exntension tubs 2, be provided with central axis 3 in the urceolus, the central axis top is connected with running tool top sub 9 with 9-1 by safety screw 3-3, the urceolus that wall thickness is close with the tail pipe wall thickness is also spacing by the urceolus ratchet 1-1 and the transmission of the moment of torsion on the central axis groove 3-2 wedging on top, by screw thread supporting positive cover 13 is installed at the urceolus top, in central axis, be fixed with locking release mechanism 7 by shear pin 11, ball cover 7-6 is led in this locking release mechanism lower end by being threaded, correspondence is provided with a plurality of urceolus locking ball-and-socket 1-2 and central axis locking ball-and-socket 3-7 respectively on urceolus and central axis, described urceolus locking ball-and-socket and the design of central axis locking ball-and-socket are tapered, urceolus and central axis are by 4 lockings of locking ball, the centre of sphere of described locking ball 4 is arranged on central axis 3 bodies, and the outer wall of locking release mechanism withstands the locking ball.Described locking release mechanism design is cylindric, between release cannelure 7-2, have the shear pin hole at its top successively, relief hole 7-3, reversing port 7-4, release cannelure 7-2 downside has the non-return pin hole, non-return pin 12 is compressed in the non-return pin hole by non-return pin spring 12-1 and non-return pin pressure cap 12-2, release cannelure 7-2 is equipped with sealing ring 7-5 up and down, the position of described release cannelure 7-2 is corresponding to the both sides up and down of urceolus locking ball-and-socket 1-2 and central axis locking ball-and-socket 3-7, and its effect is to provide the space of placing the locking ball when urceolus and central axis lock for removing.Central axis safety screw 3-3 bottom has reversing port 3-4 and pilot groove 3-5 successively, and central axis has non-return cotter slot 3-6 corresponding to the downside of locking release mechanism non-return pin hole, and reversing port 3-4 respectively is provided with central axis sealing ring 3-1 up and down.Middle part at locking release mechanism 7 is provided with ball seat 7-1, the ball cover 7-1-2 that leads of ball seat 7-1 upside is threaded with the running tool top sub, between ball seat and relief hole 7-3, be fixed with ball seat sealing 7-1-1, lead the ball cover 7-6 upper end locking release mechanism 7 that is threaded, the central axis reducer union 5 of leading ball cover 7-6 lower end and its downside can relatively move, central axis reducer union 5 is by the center extension 6 that is threaded, and leads ball cover pressure transmission hole 7-6-1 leading to have on the ball cover 7-6 body.Running tool top sub 9 also is provided with sealing ring 9-2 near the safety screw upside of bottom.
Workflow of the present utility model is:
In drilling rod, drop into and separate lock ball 8, after separating lock ball and falling in the ball seat 7-1, build the pressure to 3-6MPa in drilling rod inside, cut off shear pin 11 by the descending power that locking release mechanism 7 produces this moment, when the locking release mechanism comes downwards to release cannelure 7-2 corresponding to locking ball 4 positions, the locking ball is retracted into central axis locking ball-and-socket 3-7 and conciliates in the space of lock ring shape groove formation, just can remove the locking of central axis 3 and urceolus this moment, meanwhile non-return pin 12 moves to non-return cotter slot 3-6 and locking, prevent that the secondary that locks release mechanism 7 from moving, realization tail pipe string is slipped out of the hand.
On carry drilling rod and running tool, the reversing port 3-6 of central axis and the reversing port 7-6 of locking release mechanism all are positioned at more than the tail pipe top, the anti-circulation, annular space pumps into drilling fluid outside drilling rod, reversing port 3-6 and locking release mechanism reversing port 7-6 through central axis, to separate lock ball 8 and eject drilling rod, transfer drilling rod and running tool then, just can carry out follow-up well cementing operation to original position.
Claims (5)
1. drillable thin-walled hydraulic release device for liner, mainly comprise urceolus, the urceolus lower end is connected with the urceolus exntension tubs, be provided with central axis in the urceolus, the central axis top is connected with the running tool top sub by safety screw, it is characterized in that: the urceolus that wall thickness is close with the tail pipe wall thickness is spacing by the urceolus ratchet and the merging of the transmission of the moment of torsion on central axis slot wedge on top, by screw thread supporting positive cover is installed at the urceolus top, in central axis, be fixed with the locking release mechanism by shear pin, ball cover is led in this locking release mechanism lower end by being threaded, the central axis reducer union of leading ball cover and its downside can relatively move, the central axis reducer union center extension that is threaded, correspondence is provided with several urceolus locking ball-and-sockets and central axis locking ball-and-socket respectively on urceolus and central axis, urceolus and central axis are by the locking of locking ball, be provided with the release cannelure that is no less than a circle on the outer wall at locking release mechanism middle part, locking release mechanism top to inwall between the release cannelure is fixed with ball seat.
2. drillable thin-walled hydraulic release device for liner according to claim 1, it is characterized in that: described locking release mechanism design is cylindric, its top has relief hole, reversing port successively between the release cannelure, release cannelure downside has the non-return pin hole, and the non-return pin is compressed in the non-return pin hole by non-return pin spring and non-return pin pressure cap.
3. drillable thin-walled hydraulic release device for liner according to claim 1 is characterized in that: described urceolus locking ball-and-socket and the design of central axis locking ball-and-socket are tapered, and the centre of sphere of described locking ball is arranged on the center shaft body.
4. drillable thin-walled hydraulic release device for liner according to claim 1, it is characterized in that: central axis safety screw one side has shear pin pin-and-hole, reversing port and pilot groove successively, and central axis has the non-return cotter slot corresponding to the downside of locking release mechanism non-return pin hole.
5. drillable thin-walled hydraulic release device for liner according to claim 1 is characterized in that: have pressure transmission hole leading on the ball cover body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620025234 CN2856384Y (en) | 2006-01-23 | 2006-01-23 | Hydraulic releasing gadget for drillable thin-wall tail pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620025234 CN2856384Y (en) | 2006-01-23 | 2006-01-23 | Hydraulic releasing gadget for drillable thin-wall tail pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2856384Y true CN2856384Y (en) | 2007-01-10 |
Family
ID=37599691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620025234 Expired - Lifetime CN2856384Y (en) | 2006-01-23 | 2006-01-23 | Hydraulic releasing gadget for drillable thin-wall tail pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2856384Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100356033C (en) * | 2006-01-23 | 2007-12-19 | 中国海洋石油总公司 | Drillable thin-walled hydraulic release device for liner and operation method thereof |
| CN112659098A (en) * | 2019-10-15 | 2021-04-16 | 通用汽车环球科技运作有限责任公司 | Robotic system with reconfigurable end effector assembly |
| CN114144663A (en) * | 2019-07-23 | 2022-03-04 | 安东帕普卢泰克有限责任公司 | Stirring device with selectively detachable stirring device for flash point determination apparatus |
-
2006
- 2006-01-23 CN CN 200620025234 patent/CN2856384Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100356033C (en) * | 2006-01-23 | 2007-12-19 | 中国海洋石油总公司 | Drillable thin-walled hydraulic release device for liner and operation method thereof |
| CN114144663A (en) * | 2019-07-23 | 2022-03-04 | 安东帕普卢泰克有限责任公司 | Stirring device with selectively detachable stirring device for flash point determination apparatus |
| CN112659098A (en) * | 2019-10-15 | 2021-04-16 | 通用汽车环球科技运作有限责任公司 | Robotic system with reconfigurable end effector assembly |
| CN112659098B (en) * | 2019-10-15 | 2024-05-07 | 通用汽车环球科技运作有限责任公司 | Robot system with reconfigurable end effector assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2871095C (en) | Casing running tool | |
| CA2741532C (en) | External grip tubular running tool | |
| CN104389514B (en) | The all-hydraulic top-drive drilling of high speed high pulling torque | |
| CN201650256U (en) | Ball seat type cracking slide sleeve | |
| CN201991465U (en) | Multifunctional well drilling pipe column air operated slip | |
| CN104314486A (en) | Hydraulic power slip of removable oil string | |
| US10633939B2 (en) | Drilling apparatus | |
| CN2856384Y (en) | Hydraulic releasing gadget for drillable thin-wall tail pipe | |
| CN2856385Y (en) | Hydraulic releasing gadget for drillable thin-wall tail pipe | |
| CN100356033C (en) | Drillable thin-walled hydraulic release device for liner and operation method thereof | |
| CN101368474B (en) | Mechanical dragging type anti-propping slips | |
| CN2856383Y (en) | Emergency mechanical releasing gadget for drillable thin-wall tail pipe | |
| CN203175445U (en) | Well mouth pressurization plug drilling device | |
| CN215830454U (en) | Hydraulic elevator | |
| CN209129577U (en) | A kind of 7 " non-rotating gravity set packers of limited times | |
| CN110985753A (en) | Mechanical type installation device suitable for ocean mining riser | |
| CN201258702Y (en) | Mechanical anti-jack slip capable of dragging | |
| CN201474624U (en) | Drill rod joint with double steps | |
| CN110700758A (en) | External clamping type top drive casing pipe lowering device | |
| CN113445937B (en) | Butt joint construction method for large-diameter drilling inner sleeve | |
| CN203296730U (en) | Hydraulic-starting buckling and releasing mechanism | |
| CN202081850U (en) | Returnable and reversible slip overshot | |
| CN202544812U (en) | Rotary oil draining device | |
| CN203097849U (en) | Pop-up key applicable to tool for emergent separation and suspension of drill column | |
| CN214062901U (en) | Returnable fishing spear |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20071219 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |