CN104420828A - Deflecting device for horizontal drilling - Google Patents
Deflecting device for horizontal drilling Download PDFInfo
- Publication number
- CN104420828A CN104420828A CN201310393841.9A CN201310393841A CN104420828A CN 104420828 A CN104420828 A CN 104420828A CN 201310393841 A CN201310393841 A CN 201310393841A CN 104420828 A CN104420828 A CN 104420828A
- Authority
- CN
- China
- Prior art keywords
- pipe
- deflecting device
- horizontal drilling
- urceolus
- outer barrel
- 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
- 238000005553 drilling Methods 0.000 title claims abstract description 15
- 210000002445 nipple Anatomy 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a deflecting device for horizontal drilling. The deflecting device comprises an upper joint, an outer barrel and a flexible drill pipe, wherein the upper joint is connected with a screw drill, and the flexible drill pipe is arranged in the outer barrel. The deflecting device for horizontal drilling is characterized in that the outer barrel is composed of more than two circular different-diameter pup joints which are sequentially connected by dowels and socketed serially. A slide joint is arranged on the outer side wall of every other circular pup joint, and the slide joints are connected with elastic rebars and disposed in slide limit grooves. The deflecting device has the advantages of simple structure, low manufacturing cost, convenience in construction and operation, firmness and durability.
Description
Technical field
The present invention relates to a kind of whipstock for horizontal well drilling.
Background technology
Prior art kick-off device is mainly made up of the flexible drilling pipe of the curved shell of elasticity and interior encapsulation thereof, and there is the curved shell mechanism of elasticity and processing technology complexity, manufacturing cost is high, and difficulty of construction is comparatively large, the problem that durability is not high.
Summary of the invention
For solving above-mentioned existing shortcoming, main purpose of the present invention is the whipstock for horizontal well drilling providing a kind of practicality,
For reaching above-described object, a kind of whipstock for horizontal well drilling of the present invention takes following technical scheme:
A kind of whipstock for horizontal well drilling, be made up of the top connection that can be connected with helicoid hydraulic motor, urceolus and in-built flexible drilling pipe thereof, it is characterized in that, the mutual grafting series winding of the different pipe pipe nipple of the two or more diameter that urceolus is connected successively by pin forms, the pipe nipple lateral wall of a pipe pipe nipple of being often separated by arranges slip joint, and slip joint connects elastic steel bar and is also placed in slip stopper slot.
Adopt the present invention of as above technical scheme, there is following beneficial effect:
Have structure simple, low cost of manufacture, constructing operation is convenient, robust advantage.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
In order to further illustrate the present invention, be described further below in conjunction with accompanying drawing:
As shown in Figure 1, a kind of whipstock for horizontal well drilling of the present invention, by the top connection 1 that can be connected with helicoid hydraulic motor, urceolus 2, and in-built flexible drilling pipe composition, wherein urceolus 2 be the different pipe pipe nipple 3 of the two or more diameter that connected by pin 8 mutually grafting be composed in series, taper groove is provided with at the two ends of pipe pipe nipple 3, one side has slip stopper slot 7, is provided with elastic steel bar 6 in groove, and elastic steel bar 6 is connected on pipe pipe nipple 3 by slip joint 5; Flexible drilling pipe is prior art means, and high-pressure rubber pipe and the lower contact 4 of the Universal flexible hollow casing that the petal pipe nipple of tubulose that can be connected in series by hollow cross axle forms and liner thereof form.
The present invention controls the direction of deflecting by urceolus, and the Universal flexible hollow casing driving urceolus in-built by the axle of helicoid hydraulic motor rotates, and moment of torsion is passed to drill bit and carry out deflecting construction, elastic steel bar adds the durability of bigger device, improves application life.
Claims (1)
1. a whipstock for horizontal well drilling, be made up of the top connection that can be connected with helicoid hydraulic motor, urceolus and in-built flexible drilling pipe thereof, it is characterized in that, the mutual grafting series winding of the different pipe pipe nipple of the two or more diameter that urceolus is connected successively by pin forms, the pipe nipple lateral wall of a pipe pipe nipple of being often separated by arranges slip joint, and slip joint connects elastic steel bar and is also placed in slip stopper slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310393841.9A CN104420828A (en) | 2013-09-03 | 2013-09-03 | Deflecting device for horizontal drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310393841.9A CN104420828A (en) | 2013-09-03 | 2013-09-03 | Deflecting device for horizontal drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104420828A true CN104420828A (en) | 2015-03-18 |
Family
ID=52970867
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310393841.9A Pending CN104420828A (en) | 2013-09-03 | 2013-09-03 | Deflecting device for horizontal drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104420828A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370203A (en) * | 2015-12-11 | 2016-03-02 | 盐城市新永佳石油机械制造有限公司 | Segmented type deflecting screw drill for horizontal drilling |
| CN106194024A (en) * | 2016-07-12 | 2016-12-07 | 中国石油集团长城钻探工程有限公司 | A kind of pipe drilling well electro-hydraulic machine control steering tool mechanical part continuously |
-
2013
- 2013-09-03 CN CN201310393841.9A patent/CN104420828A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370203A (en) * | 2015-12-11 | 2016-03-02 | 盐城市新永佳石油机械制造有限公司 | Segmented type deflecting screw drill for horizontal drilling |
| CN105370203B (en) * | 2015-12-11 | 2017-12-29 | 盐城市新永佳石油机械制造有限公司 | Segment type deflecting helicoid hydraulic motor for horizontal drilling |
| CN106194024A (en) * | 2016-07-12 | 2016-12-07 | 中国石油集团长城钻探工程有限公司 | A kind of pipe drilling well electro-hydraulic machine control steering tool mechanical part continuously |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150318 |
|
| WD01 | Invention patent application deemed withdrawn after publication |