CN103184832A - Whipstock for large casing - Google Patents
Whipstock for large casing Download PDFInfo
- Publication number
- CN103184832A CN103184832A CN2011104497363A CN201110449736A CN103184832A CN 103184832 A CN103184832 A CN 103184832A CN 2011104497363 A CN2011104497363 A CN 2011104497363A CN 201110449736 A CN201110449736 A CN 201110449736A CN 103184832 A CN103184832 A CN 103184832A
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- whipstock
- stage casing
- lid
- epimere
- cylindrical
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Abstract
The invention relates to a whipstock for a large casing. The whipstock comprises a body and a cover body, wherein the body comprises an upper section, a middle section and a lower section, wherein both the upper section and the lower section are cylindrical, the middle section is semi-cylindrical, and the diameters of the upper section and the lower section are both less than the diameter of the middle section; and the cover body is semi-cylindrical and is closed with the middle section to form a cylindrical structure. Arc grooved ways are respectively formed on the planes of the middle section and the cover body, each arc grooved way comprises a vertical groove, an arc groove and a horizontal groove which are sequentially communicated with one another, and each arc groove is a quarter of a perfect circle; and the arc grooved ways on the middle section and the cover body are matched with each other to form a complete guide groove.
Description
Technical field
The present invention relates to a kind of downhole tool of field of petroleum exploitation, particularly relate to a kind of whipstock for big sleeve pipe.
Background technology
In the radially pore-forming jetting operation of field of petroleum exploitation, at first to bore at sleeve pipe and open an aperture about diameter 20mm, at this moment need to use whipstock to make and window tool string to window finishing perpendicular to the direction of production tube.For the existing instrument of windowing, the curved channel bend radius of whipstock can not be less than 65mm, otherwise the instrument of windowing can't pass through.As shown in Figure 1, the present whipstock 10 that uses, camber conduit 11 more complicated are formed by connecting by many different camber lines, and adding need provide detailed some bit data man-hour or standard form march line sweep is provided, and difficulty of processing is big.Simultaneously, the design of moving towards of the camber conduit 11 of existing whipstock also makes the whipstock entire length longer, consume material.
This shows that above-mentioned existing whipstock obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.The design people is actively studied innovation, in the hope of founding a kind of whipstock of new structure based on being engaged in practical experience and the professional knowledge that this type of product design manufacturing is enriched for many years.
Summary of the invention
Main purpose of the present invention is, overcoming the defective that existing whipstock exists, is to make it change the curve shape of curved channel and a kind of whipstock of new structure, technical problem to be solved are provided, thereby be suitable for practicality more, and have the value on the industry.
The object of the invention to solve the technical problems realizes by the following technical solutions.A kind of whipstock for big sleeve pipe according to the present invention's proposition, comprise body and lid, described body, comprise epimere, stage casing and hypomere, wherein said epimere and hypomere are cylindric, described stage casing is semi-cylindrical, and the diameter of described epimere and the diameter of hypomere are all less than the diameter in stage casing; Described lid is semi-cylindrical, and itself and above-mentioned stage casing cover the back and form cylindrical-shaped structure.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Further, aforesaid whipstock offers curved channel respectively on the plane, wherein said stage casing and the plane of lid, and this curved channel comprises vertical slots, arc groove and the level trough that is communicated with successively, described arc groove be shaped as 1/4th of circle just; Curved channel on the described stage casing cooperates the back to form complete guiding groove with curved channel on the lid.
Further, aforesaid whipstock, the epimere of wherein said body is hollow form, the vertical slots on the stage casing and epimere connect.
Further, aforesaid whipstock, the level trough in wherein said stage casing runs through the stage casing sidewall, and the level trough of described lid runs through covered body wall.
Further, aforesaid whipstock, wherein said arc groove radius of central line is greater than 65mm.
Further, aforesaid whipstock, wherein said body is connected by bolt with lid.
By technique scheme, whipstock of the present invention has following advantage at least:
The present invention is for (size is greater than 5 at big sleeve pipe
1/
2" sleeve pipe) in the process of windowing the drafting tool string by the whipstock of vertical channel steering horizontal passage.All be provided with the curved channel of vertical duction on its body and the lid, form complete guiding groove altogether.Instrument of the present invention has advantages such as high strength, easy to connect, service time are long.In addition, the curved channel of whipstock of the present invention is simplified, and makes its processing simpler, need not to carry out camber line scanning according to standard form again, and only needs to process according to the form of simple curve, thereby reduced difficulty of processing greatly.Whipstock axial length of the present invention obtains corresponding shortening, and result of use is better, and simultaneously, this whipstock uses at the scene and kept easy to connect, firm advantage.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of manual, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
Description of drawings
Fig. 1 is the structural representation of the whipstock of prior art.
Fig. 2 is the overall schematic of the whipstock of preferred embodiment of the present invention.
Fig. 3 is the whipstock body construction schematic diagram of the embodiment of the invention.
Fig. 4 is the cover body structure schematic diagram of the whipstock of the embodiment of the invention.
The specific embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to its specific embodiment of whipstock, structure, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
Seeing also Fig. 2 to shown in Figure 4, as shown in Figure 2, is the overall schematic of the whipstock of preferred embodiment of the present invention.This whipstock mainly comprises body 1 and lid 2, and body 1 and lid 2 are in the same place by bolt, form thick column structure between the detail of two ends.Bolt passes lid 2 and is tightened on the body 1.As shown in Figure 3, described body 1 comprises epimere 11, stage casing 12 and hypomere 13, and wherein said epimere 11 and hypomere 13 are cylindric, and described stage casing 12 is semi-cylindrical, and its radius is determined by casing inner diameter.The diameter in stage casing 12 is determined that by the internal diameter of sleeve pipe whipstock of the present invention is used for size greater than 5
1/
2" whipstock, for example be used for 7 " whipstock because its internal diameter is generally about 160mm, so the internal diameter in stage casing 12 generally is designed to (keep certain clearance, make it can pass through casing inner diameter smoothly) about 153mm.The diameter of the diameter of described epimere 11 and hypomere 13 is all less than the diameter in stage casing 12.Described stage casing 12 is owing to be semi-cylindrical, and it has a plane 121, and this plane 121 is positioned on the axis of described whipstock.Offer curved channel 122 on this plane, the groove of the slyness that this curved channel is made up of the vertical slots 1221, arc groove 1222 and the level trough 1223 that are communicated with.The cross sectional shape of this curved channel 122 is semicircle.The axis of described vertical slots 1221 and the dead in line of whipstock.Described arc groove 1222 just be shaped as 1/4th of circle, the radius of the center line of arc groove is greater than 65mm, level trough 1223 runs through the stage casing sidewall.Whipstock body epimere 11 and hypomere 13 are provided with screw thread, are used for linking to each other with instrument up and down.
As described in Figure 4, described lid 2 also is semi-cylindrical, and it can cover in described stage casing, thereby forms complete cylindrical.This lid 2 also has a plane 22, begin to have curved channel 222 on this plane 22, this curved channel 222 is identical with curved channel 122 shapes on the body, thereby when lid was covered mutually with body, curved channel on curved channel on the body 122 and the lid 222 is common to be formed a cross section and is the circular guiding groove that the instrument of windowing passes through that is used for.This guiding groove upwards is communicated with the epimere 11 of body 1, because epimere 11 also is the hollow form structure, thereby the instrument of windowing is penetrated from epimere, passes from the sidewall of whipstock.
At the widely used large scale sleeve pipe in oil field, because casing inner diameter is bigger, the external diameter of whipstock also correspondingly should increase.The present invention is satisfying on the basis of instructions for use, changes the arc road curve of whipstock into circular arc, make the arc road satisfy instrument by the basis that requires on, curve is simpler, easier processing.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solution of the present invention, any simple modification that foundation technical spirit of the present invention is done above embodiment, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (7)
1. a whipstock that is used for big sleeve pipe is characterized in that it comprises body and lid,
Described body comprises epimere, stage casing and hypomere, and wherein said epimere and hypomere are cylindric, and described stage casing is semi-cylindrical, and the diameter of described epimere and the diameter of hypomere are all less than the diameter in stage casing;
Described lid is semi-cylindrical, and itself and above-mentioned stage casing cover the back and form cylindrical-shaped structure.
2. whipstock according to claim 1, it is characterized in that on the plane, described stage casing and the plane of lid on offer curved channel respectively, this curved channel comprises successively vertical slots, arc groove and the level trough that is communicated with, described arc groove be shaped as 1/4th of circle just; Curved channel on the described stage casing cooperates the back to form complete guiding groove with curved channel on the lid.
3. whipstock according to claim 2 is characterized in that the epimere of described body is hollow form, and the vertical slots on the stage casing and epimere connect.
4. whipstock according to claim 2 is characterized in that the level trough in described stage casing runs through the stage casing sidewall, and the level trough of described lid runs through covered body wall.
5. whipstock according to claim 2 is characterized in that the radius of central line of described arc groove is greater than 65mm.
6. whipstock according to claim 2 is characterized in that described body is connected by bolt with lid.
7. whipstock according to claim 2 is characterized in that described epimere and hypomere are provided with screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110449736.3A CN103184832B (en) | 2011-12-29 | 2011-12-29 | For the whipstock of large sleeve pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110449736.3A CN103184832B (en) | 2011-12-29 | 2011-12-29 | For the whipstock of large sleeve pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103184832A true CN103184832A (en) | 2013-07-03 |
| CN103184832B CN103184832B (en) | 2015-12-02 |
Family
ID=48676254
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110449736.3A Active CN103184832B (en) | 2011-12-29 | 2011-12-29 | For the whipstock of large sleeve pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103184832B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5469925A (en) * | 1993-10-06 | 1995-11-28 | Union Oil Company Of California | Downhole tube turning tool |
| CN2278757Y (en) * | 1996-12-26 | 1998-04-15 | 中原石油勘探局钻井工艺技术研究院 | Flexible pipe drilling tool for super-short radium horizontal drilling |
| CN2466335Y (en) * | 2000-10-15 | 2001-12-19 | 张书明 | Flexible drilling tool |
| CN2492736Y (en) * | 2001-08-24 | 2002-05-22 | 中国石油天然气股份有限公司 | T-bend |
| RU2313651C1 (en) * | 2006-04-19 | 2007-12-27 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Device for radial reservoir exposing |
| CN201079337Y (en) * | 2007-09-29 | 2008-07-02 | 丁明光 | Siphoning type human body private parts warm water flusher |
| CN201116544Y (en) * | 2007-11-14 | 2008-09-17 | 上海连成（集团）有限公司 | Flow deflector used for loose core type vertical pollution discharging pump |
| CN102278067A (en) * | 2011-07-11 | 2011-12-14 | 安东石油技术（集团）有限公司 | Whipstock |
| CN202380975U (en) * | 2011-12-29 | 2012-08-15 | 四川安东油气工程技术服务有限公司 | Deflecting device for large casing |
-
2011
- 2011-12-29 CN CN201110449736.3A patent/CN103184832B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5469925A (en) * | 1993-10-06 | 1995-11-28 | Union Oil Company Of California | Downhole tube turning tool |
| CN2278757Y (en) * | 1996-12-26 | 1998-04-15 | 中原石油勘探局钻井工艺技术研究院 | Flexible pipe drilling tool for super-short radium horizontal drilling |
| CN2466335Y (en) * | 2000-10-15 | 2001-12-19 | 张书明 | Flexible drilling tool |
| CN2492736Y (en) * | 2001-08-24 | 2002-05-22 | 中国石油天然气股份有限公司 | T-bend |
| RU2313651C1 (en) * | 2006-04-19 | 2007-12-27 | Открытое акционерное общество "Татнефть" им. В.Д. Шашина | Device for radial reservoir exposing |
| CN201079337Y (en) * | 2007-09-29 | 2008-07-02 | 丁明光 | Siphoning type human body private parts warm water flusher |
| CN201116544Y (en) * | 2007-11-14 | 2008-09-17 | 上海连成（集团）有限公司 | Flow deflector used for loose core type vertical pollution discharging pump |
| CN102278067A (en) * | 2011-07-11 | 2011-12-14 | 安东石油技术（集团）有限公司 | Whipstock |
| CN202380975U (en) * | 2011-12-29 | 2012-08-15 | 四川安东油气工程技术服务有限公司 | Deflecting device for large casing |
Non-Patent Citations (2)
| Title |
|---|
| 王慧艺等: "径向井造斜器滑道设计的方针分析", 《石油矿场机械》 * |
| 王慧艺等: "超短半径转向滑道的阻力建模及布轮设计", 《石油机械》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103184832B (en) | 2015-12-02 |
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