CN107575179A - More inclined-plane window sidetracking whipstock assemblies - Google Patents
More inclined-plane window sidetracking whipstock assemblies Download PDFInfo
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- CN107575179A CN107575179A CN201710975840.3A CN201710975840A CN107575179A CN 107575179 A CN107575179 A CN 107575179A CN 201710975840 A CN201710975840 A CN 201710975840A CN 107575179 A CN107575179 A CN 107575179A
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- whipstock
- piston
- hinge
- pipe nipple
- angle
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Abstract
A kind of more inclined-plane window sidetracking whipstock assemblies, including：One whipstock, the windowing milling wimble being connected with whipstock, the first flexible pipe, flexible pipe crossover sub and the anti-turn screw being sequentially arranged at from lower top to bottm by front on whipstock, wherein, whipstock is provided with a guiding incline, and guiding incline is provided with a groove；The back side of whipstock is sequentially installed with suspension hook, hook on bolt and hydraulic hard tube from top to bottom；The bottom of whipstock is connected with hinge pipe nipple；Equipped with piston, piston locating snap ring and the piston limit ring that group is integral inside the lower end of hinge pipe nipple.The present invention not only smoothly opens a window beneficial to milling cone, increases overall diameter length of window, solves the problems, such as that valid window length is shorter；Moreover, whipstock is more also adjacent into internal surface of sleeve pipe, solves the problems, such as that the less efficient of dead point is crossed in follow-up drilling tool tripping in, milling cone, avoid the risk that subsequent tool is hampered.
Description
Technical field
The present invention relates to whipstock, more particularly to a kind of more inclined-plane window sidetracking whipstock assemblies.Belong to petroleum works neck
Domain.
Background technology
At present, existing whipstock assembly includes：Whipstock and the hinge connection pipe nipple on whipstock.Due to existing
Some whipstock guiding inclines only have an angle, and therefore, the valid window length for causing it to be formed is shorter, and milling cone crosses dead point
It is less efficient；Existing whipstock is additionally, since to carry grappling function or be Hard link with anchor, after grappling, whipstock
It is in center condition in sleeve pipe, larger gap at the top of whipstock between sleeve pipe is present, increase subsequent tool is hampered risk.
The content of the invention
It is a primary object of the present invention to overcome disadvantages mentioned above existing for prior art, and provide a kind of more inclined-plane windowing sides
Whipstock assembly is bored, guiding incline is designed to multi-angle and is cambered surface by it, is not only smoothly opened a window beneficial to milling cone, increases overall diameter window
Length, solve the problems, such as that valid window length is shorter；Moreover, whipstock is more also adjacent into internal surface of sleeve pipe, solves follow-up brill
Tool tripping in, milling cone cross dead point it is less efficient the problem of, avoid the risk that subsequent tool is hampered.
The purpose of the present invention is realized by following technical scheme：
A kind of more inclined-plane window sidetracking whipstock assemblies, it is characterised in that：Including：One whipstock, it is connected with whipstock
Windowing milling wimble, the first flexible pipe, flexible pipe crossover sub and the anti-turn screw being sequentially arranged at from lower top to bottm by front on whipstock,
Wherein, whipstock is provided with a guiding incline, and guiding incline is provided with a groove；The back side of whipstock is sequentially installed with from top to bottom hangs
Hook, hook on bolt and hydraulic hard tube；The bottom of whipstock is connected with hinge pipe nipple；Equipped with composition inside the lower end of hinge pipe nipple
One overall piston, piston locating snap ring and piston limit ring.
The whipstock top is provided with screwed hole, salvages hole, and feeding pin is provided with screwed hole；And the back of whipstock
Provided with the chase for inlaying hydraulic hard tube.
The axial section line of the guiding incline and the combination that axis angle is several angles, wherein, first angle is 13 °
~16 °；Second angle is 0 °~1 °；3rd angle is 1.5 °~4 °；4th angle is 13 °~16 °；5th angle
For 1.5 °~4 °.
The windowing milling wimble is provided with sealing hole, and sealing ring is provided with sealing hole.
The sealing hole of the upper end of the flexible pipe crossover sub and windowing milling wimble connects, the lower end of flexible pipe crossover sub with it is oblique
The screwed hole connection of device bottom, screwed hole are connected with the piston inside hinge pipe nipple.
The hinge pipe nipple is to be connected by hinge pin and wedging structure with whipstock；Hinge pin side is respectively equipped with
Several arc grooves, and coordinate anti-turn screw and resilient key spacing, hinge pipe nipple is connected with anchor.
The piston axially has certain displacement；The pin hole of the upper end of piston and the bottom of whipstock connects
Connect；Piston locating snap ring is connected with hinge pipe nipple, to limit moving down for piston；Piston limit ring is connected with piston, to limit
Piston moves up.
Beneficial effects of the present invention：The present invention due to using above-mentioned technical proposal, its by guiding incline be designed to multi-angle and
For cambered surface, not only smoothly opened a window beneficial to milling cone, increase overall diameter length of window, solve the problems, such as that valid window length is shorter；And
And whipstock is more also adjacent to internal surface of sleeve pipe, solve the problems, such as that the less efficient of dead point is crossed in follow-up drilling tool tripping in, milling cone, keep away
The risk that subsequent tool is hampered is exempted from.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 be in Fig. 1 A-A to schematic diagram.
Major Symbol explanation in figure：
1. it is sent into pin, 2. first flexible pipes, 3. whipstocks, 4. hook on bolt, 5. suspension hooks, 6. flexible pipe crossover subs, 7. liquid
Hard tube, 8. anti-turn screws, 9. hinge pins, 10. hinge pipe nipples, 11. second flexible pipes, 12. pistons, 13. sealing rings, 14. are pressed to live
Fill in locating snap ring, 15. piston limit rings, 16. resilient keys.
Embodiment
Such as Fig. 1, shown in Fig. 2, the present invention includes：Whipstock 3, the window milling being connected by being sent into pin 1 with whipstock 3
Cone, the first flexible pipe 2, flexible pipe crossover sub 6 and the anti-turn screw 8 being sequentially arranged at from lower top to bottm by front on whipstock 3, its
In, whipstock 3 is provided with a guiding incline, and guiding incline is provided with a groove；The back side of whipstock 3 is sequentially installed with from top to bottom hangs
Hook 5, hook on bolt 4 and hydraulic hard tube 7；The bottom of whipstock 3 passes through the flexible pipe 11 of hinge pin 9 and second and the phase of hinge pipe nipple 10
Connection；Equipped with piston 12, piston locating snap ring 14 and the piston limit ring 15 that group is integral inside the lower end of hinge pipe nipple 10.
The axial section line of the guiding incline of above-mentioned whipstock 3 and the combination that axis angle is several angles, wherein, first
Angle is 13 °~16 °；Second angle is 0 °~1 °；3rd angle is 1.5 °~4 °；4th angle is 13 °~16 °；
5th angle is 1.5 °~4 °.
The above-mentioned top of whipstock 3 is provided with screwed hole, salvages hole, is sent into pin 1 and is arranged in screwed hole；And whipstock 3
Back is provided with the chase for inlaying hydraulic hard tube 7.
Above-mentioned windowing milling wimble is provided with sealing hole, and sealing ring 13 is provided with sealing hole.
Above-mentioned suspension hook 5 is the back side that whipstock 3 is fixed on by hook on bolt 4.
The upper end of above-mentioned flexible pipe crossover sub 6 is connected by the first flexible pipe 2 with the sealing hole of windowing milling wimble, and flexible pipe conversion connects
First 6 lower end is connected by hydraulic hard tube 7 with the screwed hole of the bottom of whipstock 3, and screwed hole is by the second flexible pipe 11 with being located at
Piston 12 inside hinge pipe nipple 10 connects.
Above-mentioned hinge pipe nipple 10 is to be connected by hinge pin 9 and wedging structure with whipstock 3；The side of hinge pin 9 point
Not She You several arc grooves (the present embodiment is three), and coordinate anti-turn screw 8 and resilient key 16 spacing, hinge pipe nipple 10 is
It is connected by screw thread with anchor；The inside of hinge pipe nipple 10 is equipped with piston 12, piston locating snap ring 14, piston limit ring 15；The work
Plug 12, piston locating snap ring 14,15 groups of piston limit ring are integral, under the external screw thread and hinge pipe nipple 10 of piston locating snap ring 14
Inner hole thread connection is held, the upper external thread of piston limit ring 15 is connected with the lower internal thread of piston 12；And piston 12 is in axle
To with certain displacement.
Above-mentioned several arc grooves are right respectively with two holes on whipstock 3 and a hole on hinge pipe nipple 10 respectively
Just, resilient key 16 is installed in two holes on whipstock 3, anti-turn screw 8 is installed in the hole on hinge pipe nipple 10.
The upper end of above-mentioned piston 12 is connected by the first flexible pipe 2 with the pin hole of the bottom of whipstock 3.Piston stop
Ring 14 is by the threaded connection inside screw thread and hinge pipe nipple 10, and to limit moving down for piston 12, piston limit ring 14 is with living
Plug 12 is connected by screw thread, to limit moving up for piston 12.The salvaging hole on whipstock 3 is hooked by Special fishing tool
Upper lifting pipe post pulls whipstock 3 out.
The operation principle of the present invention：
Before operation, assembling whipstock 3 and hinge pipe nipple 10, and fixed with hinge pin 9, insert backing-up screw and anti-rotation spiral shell
Nail 8 and resilient key 16.Hinge pipe nipple 10 is buckled with anchor by drilling rod to be connected.Hydraulic hard tube 7 is laid on the pipe at the back side of whipstock 3
In wire casing, and the threaded connection with flexible pipe crossover sub 6 and the bottom of whipstock 3 respectively.The upper end of first flexible pipe 2 is connected to oblique
In the screwed hole of the bottom of device 3, the other end is connected to the top of piston 12 inside hinge pipe nipple 10.In well head, special well is utilized
Mouth instrument suspension whipstock 3, is connected by being sent into pin 1 with milling cone.Another screwed hole of flexible pipe crossover sub 6 is soft by first
Pipe 1 is connected with milling cone.So, whole hydraulic channel, setting anchor are constituted using the first flexible pipe 2 and hydraulic hard tube 7.Operation
When, above propose cutting and be sent into pin 1, milling cone and whipstock 3 separate, lower brill, spigot surface windowing of the milling cone along whipstock 3.Recovery
When oblique, lower Special fishing tool, by hooking the salvaging hole in whipstock 3 or catching the body of whipstock 3, upper lifting pipe post,
Hinge pin 9 is cut, completes the operation of recovery whipstock 3.
Above-mentioned wedging structure, hinge pipe nipple are prior art, and the technology of not specified (NS) is prior art, therefore is repeated no more.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, it is all
It is any simple modification, equivalent change and modification made according to the technical spirit of the present invention to above example, still falls within
In the range of technical solution of the present invention.
Claims (7)
- A kind of 1. more inclined-plane window sidetracking whipstock assemblies, it is characterised in that：Including：One whipstock, opening of being connected with whipstock Window milling cone, the first flexible pipe, flexible pipe crossover sub and the anti-turn screw being sequentially arranged at from lower top to bottm by front on whipstock, its In, whipstock is provided with a guiding incline, and guiding incline is provided with a groove；The back side of whipstock is sequentially installed with from top to bottom hangs Hook, hook on bolt and hydraulic hard tube；The bottom of whipstock is connected with hinge pipe nipple；Equipped with composition inside the lower end of hinge pipe nipple One overall piston, piston locating snap ring and piston limit ring.
- 2. more inclined-plane window sidetracking whipstock assemblies according to claim 1, it is characterised in that：The whipstock top is set There is screwed hole, salvage hole, feeding pin is installed in screwed hole；And the back of whipstock is provided with the pipeline for inlaying hydraulic hard tube Groove.
- 3. more inclined-plane window sidetracking whipstock assemblies according to claim 1, it is characterised in that：The axial direction of the guiding incline Hatching and the combination that axis angle is several angles, wherein, first angle is 13 °~16 °；Second angle be 0 °~ 1°；3rd angle is 1.5 °~4 °；4th angle is 13 °~16 °；5th angle is 1.5 °~4 °.
- 4. more inclined-plane window sidetracking whipstock assemblies according to claim 1, it is characterised in that：Set on the windowing milling wimble There is sealing hole, sealing ring is installed in sealing hole.
- 5. more inclined-plane window sidetracking whipstock assemblies according to claim 1, it is characterised in that：The flexible pipe crossover sub Upper end and the sealing hole of windowing milling wimble connect, the lower end of flexible pipe crossover sub is connected with the screwed hole of whipstock bottom, spiral shell Pit is connected with the piston inside hinge pipe nipple.
- 6. more inclined-plane window sidetracking whipstock assemblies according to claim 1, it is characterised in that：The hinge pipe nipple is logical Cross hinge pin and wedging structure is connected with whipstock；Hinge pin side is respectively equipped with several arc grooves, and coordinates anti-rotation Screw and resilient key are spacing, and hinge pipe nipple is connected with anchor.
- 7. more inclined-plane window sidetracking whipstock assemblies according to claim 1, it is characterised in that：The piston is in axial tool There is certain displacement；The pin hole of the upper end of piston and the bottom of whipstock connects；Piston locating snap ring connects with hinge pipe nipple Connect, to limit moving down for piston；Piston limit ring is connected with piston, to limit moving up for piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710975840.3A CN107575179A (en) | 2017-10-19 | 2017-10-19 | More inclined-plane window sidetracking whipstock assemblies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710975840.3A CN107575179A (en) | 2017-10-19 | 2017-10-19 | More inclined-plane window sidetracking whipstock assemblies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107575179A true CN107575179A (en) | 2018-01-12 |
Family
ID=61036932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710975840.3A Pending CN107575179A (en) | 2017-10-19 | 2017-10-19 | More inclined-plane window sidetracking whipstock assemblies |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107575179A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165161A (en) * | 2021-12-10 | 2022-03-11 | 通化红光石油机械有限责任公司 | Slope guiding device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040144047A1 (en) * | 2003-01-15 | 2004-07-29 | Dave Stephen | Short radius whipstock system |
| CN2703115Y (en) * | 2004-01-08 | 2005-06-01 | 新疆石油管理局钻井工艺研究院 | Suspension positioning recoverable whipstocks |
| CN202249879U (en) * | 2011-10-25 | 2012-05-30 | 西南石油大学 | Double-layer sleeve windowing whipstock |
| CN202266219U (en) * | 2011-08-28 | 2012-06-06 | 中国石油集团长城钻探工程有限公司 | Measurement-while-drilling (MWD) directional rapid window cutting tool |
| CN107100574A (en) * | 2017-05-10 | 2017-08-29 | 中国海洋石油总公司 | A kind of integral type sidetracking window opening tool assembly |
-
2017
- 2017-10-19 CN CN201710975840.3A patent/CN107575179A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040144047A1 (en) * | 2003-01-15 | 2004-07-29 | Dave Stephen | Short radius whipstock system |
| CN2703115Y (en) * | 2004-01-08 | 2005-06-01 | 新疆石油管理局钻井工艺研究院 | Suspension positioning recoverable whipstocks |
| CN202266219U (en) * | 2011-08-28 | 2012-06-06 | 中国石油集团长城钻探工程有限公司 | Measurement-while-drilling (MWD) directional rapid window cutting tool |
| CN202249879U (en) * | 2011-10-25 | 2012-05-30 | 西南石油大学 | Double-layer sleeve windowing whipstock |
| CN107100574A (en) * | 2017-05-10 | 2017-08-29 | 中国海洋石油总公司 | A kind of integral type sidetracking window opening tool assembly |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165161A (en) * | 2021-12-10 | 2022-03-11 | 通化红光石油机械有限责任公司 | Slope guiding device |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180112 |
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| RJ01 | Rejection of invention patent application after publication |