CN106522874A - Recyclable open hole packer suitable for large-well-deflection drill holes - Google Patents
Recyclable open hole packer suitable for large-well-deflection drill holes Download PDFInfo
- Publication number
- CN106522874A CN106522874A CN201611093407.9A CN201611093407A CN106522874A CN 106522874 A CN106522874 A CN 106522874A CN 201611093407 A CN201611093407 A CN 201611093407A CN 106522874 A CN106522874 A CN 106522874A
- Authority
- CN
- China
- Prior art keywords
- socketed
- packer
- ring
- slips
- central tube
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/1208—Packers; Plugs characterised by the construction of the sealing or packing means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/129—Packers; Plugs with mechanical slips for hooking into the casing
Abstract
The invention discloses a recyclable open hole packer suitable for large-well-deflection drill holes. The recyclable open hole packer comprises a telescopic pipe and a center pipe, and the telescopic pipe is sleeved with the center pipe. An upper joint is arranged at one end of the telescopic pipe, and a lower joint is arranged at the other end of the telescopic pipe. The side, close to the telescopic pipe, of the upper joint is connected with a sealing joint in a sleeved mode, and the sealing joint is connected to the outer side of the center pipe in a sleeving mode. A sealing cover is connected to the outer side of the sealing joint in a sleeving mode, and connected to the end of the center pipe in a sleeving mode. A shear sliding cover and a shear stop ring are connected to the portion between a shell and the telescopic pipe in a sleeved mode from inside to outside. The shear sliding cover is arranged at the end of the center pipe. The shear stop ring and the shear sliding cover are fixed to the telescopic pipe through a positioning pin. An unsealing pin is arranged on the outer wall of the sealing joint. A prevention base pin is arranged on the outer wall of a limiting ring. A lock cover is connected to the outer side of the telescopic pipe in a sleeving mode. The recyclable open hole packer can be applied to mine ground gas extraction and achieves continuous windowing for sleeves at the drilling pitching section, each hole is provided with multiple branches, the effective length and range of gas extraction are extended, and cost is reduced.
Description
Technical field
The present invention relates to field of mining, more particularly to a kind of recoverable open hole packer suitable for the drilling of big hole deviation.
Background technology
In prior art, open hole packer mainly applies to little hole deviation (≤80 °), when for big hole deviation (90 ° of ＞),
Due to facing upward section casing sidetracking difficulty greatly, stress relation is extremely complicated, is difficult to fix, it is therefore desirable to enter which conventional packer more
Row is improved.
The content of the invention
The technical problem to be solved is to provide a kind of recoverable bore hole packing suitable for the drilling of big hole deviation
Device, increased deblocking shear pin, lock sleeve and anti-seat nail, realizes that a drilling section sleeve pipe of facing upward continuously opens a window by which, and a hole is branched, increases
Plus gas pumping effective length and scope, with above-mentioned multinomial defect caused by solving in prior art.
For achieving the above object, the present invention provides following technical scheme：It is a kind of suitable for big hole deviation drilling it is recyclable
Formula open hole packer, including packer body, it is characterised in that the outer wall of the seal nipple of the packer is provided with solution offset
Nail, the outer wall of the spacing ring of the packer are provided with anti-seat nail, are socketed with lock sleeve on the outside of the telescoping tube of the packer.
Preferably, the packer includes telescoping tube and the central tube being enclosed within the outside of telescoping tube, and the two ends of telescoping tube are distinguished
Top connection and lower contact are provided with, top connection is socketed with seal nipple near telescoping tube side, and seal nipple is socketed in central tube
Outside, be socketed with sealing shroud on the outside of seal nipple, sealing shroud is socketed in the end of central tube, central tube sealing shroud and under connect
Slips, centrum, packing element assembly and overcoat are socketed with successively between head, and slips is provided with spacing ring near one end of sealing shroud, spacing
Ring is arranged between slips and central tube, and spacing ring is fixed on central tube by guider screw, and cone is solid by setting pin
It is scheduled on central tube, between overcoat and telescoping tube, from-inner-to-outer is socketed with shearing sliding sleeve and shearing baffle ring, shearing sliding sleeve is arranged on
The end of central tube, shop bolt will shear baffle ring and shearing sliding sleeve is fixed on telescoping tube.
Preferably, upper press cover, sealing ring and gear are sequentially provided with the inside of the sealing shroud between seal nipple and sealing shroud
Ring.
Preferably, slips body is socketed between the slips and central tube, between slips body and slips, is provided with spring, slips
Outside is provided with slips baffle ring.
Preferably, the upper baffle ring in the logical outside in the center of being socketed in is provided between the centrum and packing element assembly, upper baffle ring is stuck in
The end of centrum, is provided with shearing and changes and lock ring between centrum and central tube.
Preferably, the lower baffle ring and standard in the logical outside in the center of being socketed in are sequentially provided between the packing element assembly and overcoat
Ring, is provided with butterfly spring between lower baffle ring and standard ring.
Preferably, locating detent is provided between the overcoat and central tube, locating detent one end is relative to central tube clamping, positioning
The pawl other end is located between overcoat and shearing sliding sleeve.
Using the beneficial effect of above technical scheme it is：The recoverable suitable for the drilling of big hole deviation of present configuration is naked
Eye packer, recyclable rail mounted Bidirectional anchor packer/whipstock be on the basis of former Y211-150 packers transformation and
Into, increased deblocking shear pin, lock sleeve and anti-seat nail.Anti- seat nail is to prevent instrument from occurring seat by mistake in transport or handling process
Envelope, instrument are connected on tubing string and confirm that righting track body is followed closely in short track, remove anti-seat nail, will enter in hole under instrument.Pipe
When post is transferred, pluck and elevator is unloaded no more than anti-seat spacing 600mm.After in place, wedge deflection tool positioning, above puts and puts tubing string, packer seat
Envelope, centralizer body promotion slips support are up, and slips opens and is supported on casing wall, continue decentralization tubing string, and packing element is compressed, while lock
Ring is locked on lock sleeve, packing element and the automatic unfreezing of slips after preventing tubing string from giving up.After the completion of construction, under enter fishing tool and catch
Upper lifting pipe post after packer, deblocking shear pin are cut off, and lock sleeve is moved down, and take out after instrument deblocking release.After finishing drilling, by packer/
By which, direction deflecting device fishing realizes that a drilling section sleeve pipe of facing upward continuously opens a window to aperture using in grass gas pumping,
One hole is branched, increases gas pumping effective length and scope, has saved cost, while downhole production can be unaffected.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Wherein, 1-- top connections, 2-- shear pins, 3-- seal nipples, 4-- fixing pins, 5-- upper press covers, 6-- sealings
Circle, 7-- baffle rings, 8-- sealing shrouds, 9-- central tubes, 10-- spacing rings, 11-- guider screws, 12-- slips, 13-- springs, 14--
Slips baffle ring, 15-- slips bodies, 16-- set pin, 17-- shearing rings, 18-- centrums, 19-- lock rings, 20-- upper baffle rings, 21--
Packing element assembly, 22-- lower baffle rings, 23-- butterfly springs, 24-- standard rings, 25-- overcoats, 26-- locating detents, 27-- shearing baffle ring,
28-- shearing sliding sleeves, 29-- telescoping tubes, 30-- lower contacts, 31-- deblocking pins, 32-- lock sleeves, the anti-seat nails of 33--.
Specific embodiment
Describe the preferred embodiment of the present invention below in conjunction with the accompanying drawings in detail.
Fig. 1 shows the specific embodiment of the present invention：A kind of recoverable open hole packer suitable for the drilling of big hole deviation,
Including telescoping tube 29 and the central tube 9 being enclosed within the outside of telescoping tube 29, telescoping tube 29 is respectively arranged at two ends with top connection 1 and lower contact
30, top connection 1 is socketed with seal nipple 3 near 29 side of telescoping tube, and seal nipple 3 is socketed in the outside of central tube 9, above connects
Mutually fixed by shear pin 2 between 1 and seal nipple 3, it is mutually solid by fixing pin 4 between seal nipple 3 and sealing shroud 8
It is fixed, sealing shroud 8 is socketed with the outside of seal nipple 3, sealing shroud 8 is socketed in the end of central tube 9, and central tube 9 is in sealing shroud 8 with
It is socketed with slips 12, centrum 18, packing element assembly 21 and overcoat 25 between joint 30 successively, slips 12 is near one end of sealing shroud 8
Spacing ring 10 is provided with, spacing ring 10 is arranged between slips 12 and central tube 9, during spacing ring 10 is fixed on by guider screw 11
On heart pipe 9, cone is fixed on central tube 9 by setting pin 16, and between overcoat 25 and telescoping tube 29, from-inner-to-outer set 25 connects
There are shearing sliding sleeve 28 and shearing baffle ring 27, shear the end of 28 centrally disposed pipe 9 of sliding sleeve, shop bolt will shear 27 He of baffle ring
Shearing sliding sleeve 28 is fixed on telescoping tube 29；The outer wall of seal nipple is provided with deblocking pin 31, and the outer wall of spacing ring 10 is provided with anti-
Seat nail 33, the outside of telescoping tube 29 is socketed with lock sleeve 32.
Upper press cover 5, sealing ring 6 and baffle ring 7 are sequentially provided with the inside of sealing shroud 8 between seal nipple 3 and sealing shroud 8；Card
Watt slips body 15 between 12 and central tube 9, is socketed with, spring 13 is provided between slips body 15 and slips 12, is provided with the outside of slips 12
Slips baffle ring 14；The upper baffle ring 20 in the logical outside in the center of being socketed in is provided between centrum 18 and packing element assembly 21, upper baffle ring 20 is stuck in
The end of centrum 18, is provided with shearing ring 17 and lock ring 19 between centrum 18 and central tube 9；Between packing element assembly 21 and overcoat 25 according to
The secondary lower baffle ring 22 and standard ring 24 for being provided with the logical outside in the center of being socketed in, is provided with butterfly spring between lower baffle ring 22 and standard ring 24
23；Locating detent 26 is provided between overcoat 25 and central tube 9, relative to 9 clamping of central tube, locating detent 26 is another for 26 one end of locating detent
End is between overcoat 25 and shearing sliding sleeve 28.
Anti- seat nail is to prevent instrument from occurring missing setting in transport or handling process, and instrument is connected on tubing string and confirms to help
Positive track body is followed closely in short track, is removed anti-seat nail, will be entered in hole under instrument.When tubing string is transferred, pluck and elevator is unloaded no more than anti-
Seat spacing 600mm.After in place, wedge deflection tool positioning, above puts and puts tubing string, packer set, and centralizer body promotes slips support up, slips
Open and be supported on casing wall, continue decentralization tubing string, packing element is compressed, while lock ring is locked on lock sleeve, prevents tubing string from losing
Packing element and the automatic unfreezing of slips after hand.After the completion of construction, under enter fishing tool and catch upper lifting pipe post after packer, deblocking shear pin is cut
Disconnected, lock sleeve is moved down, and is taken out after instrument deblocking release.After finishing drilling, by packer/direction deflecting device fishing to aperture.
Above-described is only the preferred embodiment of the present invention, it is noted that for one of ordinary skill in the art
For, without departing from the concept of the premise of the invention, some deformations and improvement can also be made, these belong to the present invention
Protection domain.
Claims (7)
1. a kind of recoverable open hole packer suitable for the drilling of big hole deviation, including packer body, it is characterised in that described
The outer wall of the seal nipple of packer is provided with deblocking pin, and the outer wall of the spacing ring of the packer is provided with anti-seat nail, the envelope
Lock sleeve is socketed with the outside of the telescoping tube of device.
2. it is according to claim 1 suitable for big hole deviation drilling recoverable open hole packer, it is characterised in that it is described
Packer includes telescoping tube and the central tube being enclosed within the outside of telescoping tube, and telescoping tube is respectively arranged at two ends with top connection and lower contact,
Top connection is socketed with seal nipple near telescoping tube side, and seal nipple is socketed in the outside of central tube, on the outside of seal nipple
Sealing shroud is socketed with, sealing shroud is socketed in the end of central tube, and central tube is socketed with card between sealing shroud and lower contact successively
Watt, centrum, packing element assembly and overcoat, slips is provided with spacing ring near one end of sealing shroud, and spacing ring is arranged on slips and center
Between pipe, spacing ring is fixed on central tube by guider screw, and cone is fixed on central tube by setting pin, overcoat and
Between telescoping tube, from-inner-to-outer is socketed with shearing sliding sleeve and shearing baffle ring, shears the end of the centrally disposed pipe of sliding sleeve, alignment pin
Nail is fixed on shearing baffle ring and shearing sliding sleeve on telescoping tube.
3. it is according to claim 1 suitable for big hole deviation drilling recoverable open hole packer, it is characterised in that it is described
Upper press cover, sealing ring and baffle ring are sequentially provided with the inside of sealing shroud between seal nipple and sealing shroud.
4. it is according to claim 1 suitable for big hole deviation drilling recoverable open hole packer, it is characterised in that it is described
Slips body is socketed between slips and central tube, spring between slips body and slips, is provided with, slips baffle ring on the outside of slips, is provided with.
5. it is according to claim 1 suitable for big hole deviation drilling recoverable open hole packer, it is characterised in that it is described
The upper baffle ring in the logical outside in the center of being socketed in is provided between centrum and packing element assembly, upper baffle ring is stuck in the end of centrum, and centrum is with
It is provided with shearing to change and lock ring between heart pipe.
6. it is according to claim 1 suitable for big hole deviation drilling recoverable open hole packer, it is characterised in that it is described
The lower baffle ring and standard ring in the logical outside in the center of being socketed in are sequentially provided between packing element assembly and overcoat, between lower baffle ring and standard ring
It is provided with butterfly spring.
7. it is according to claim 1 suitable for big hole deviation drilling recoverable open hole packer, it is characterised in that it is described
Be provided with locating detent between overcoat and central tube, locating detent one end relative to central tube clamping, the locating detent other end be located at overcoat and
Between shearing sliding sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611093407.9A CN106522874A (en) | 2016-12-02 | 2016-12-02 | Recyclable open hole packer suitable for large-well-deflection drill holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611093407.9A CN106522874A (en) | 2016-12-02 | 2016-12-02 | Recyclable open hole packer suitable for large-well-deflection drill holes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106522874A true CN106522874A (en) | 2017-03-22 |
Family
ID=58354214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611093407.9A Pending CN106522874A (en) | 2016-12-02 | 2016-12-02 | Recyclable open hole packer suitable for large-well-deflection drill holes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106522874A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2755273Y (en) * | 2004-12-03 | 2006-02-01 | 盘锦华源石油机械厂 | Super-expand packer |
| CN201705275U (en) * | 2010-06-02 | 2011-01-12 | 中国石油天然气股份有限公司 | Washable well packer |
| US20120160523A1 (en) * | 2010-12-28 | 2012-06-28 | Texproil S.R.L. | Downhole packer tool with safety systems for preventing undue set and release operations |
| CN202745799U (en) * | 2012-08-27 | 2013-02-20 | 濮阳市珠峰石油机械有限公司 | Large-diameter self-locking packer |
| CN103321605A (en) * | 2013-05-24 | 2013-09-25 | 中国石油化工股份有限公司 | Downward striking type unblocking packer |
-
2016
- 2016-12-02 CN CN201611093407.9A patent/CN106522874A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2755273Y (en) * | 2004-12-03 | 2006-02-01 | 盘锦华源石油机械厂 | Super-expand packer |
| CN201705275U (en) * | 2010-06-02 | 2011-01-12 | 中国石油天然气股份有限公司 | Washable well packer |
| US20120160523A1 (en) * | 2010-12-28 | 2012-06-28 | Texproil S.R.L. | Downhole packer tool with safety systems for preventing undue set and release operations |
| CN202745799U (en) * | 2012-08-27 | 2013-02-20 | 濮阳市珠峰石油机械有限公司 | Large-diameter self-locking packer |
| CN103321605A (en) * | 2013-05-24 | 2013-09-25 | 中国石油化工股份有限公司 | Downward striking type unblocking packer |
Non-Patent Citations (1)
| Title |
|---|
| 周建堃，巩宏亮: "Y211-150可伸缩热采封隔器的研制", 《石油机械》 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ni Jianming Inventor after: Zheng Shitian Inventor after: Miao Yusheng Inventor after: Xu Banggui Inventor after: Li Kangkang Inventor after: Gao Yuan Inventor after: Hou Chen Inventor before: Ni Jianming Inventor before: Zheng Shitian Inventor before: Xu Banggui Inventor before: Li Kangkang Inventor before: Gao Yuan Inventor before: Hou Chen |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170322 |