CN202882761U - Horizontal well deflecting tool - Google Patents
Horizontal well deflecting tool Download PDFInfo
- Publication number
- CN202882761U CN202882761U CN 201220563127 CN201220563127U CN202882761U CN 202882761 U CN202882761 U CN 202882761U CN 201220563127 CN201220563127 CN 201220563127 CN 201220563127 U CN201220563127 U CN 201220563127U CN 202882761 U CN202882761 U CN 202882761U
- Authority
- CN
- China
- Prior art keywords
- flexible nipple
- nipple
- horizontal well
- flexible
- short circuit
- 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 - Fee Related
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Abstract
Disclosed is a horizontal well deflecting tool. The horizontal well deflecting tool comprises an upper connector (1). A shield (2) is sleeved on the lower portion of the upper connector (1). A bearing (3) is installed between the upper connector (1) and the shield (2). The lower portion of the shield (2) is connected with a pup joint (4). The lower end of the pup joint (4) is fixed with a guide pipe (5). The lower end of the upper connector (1) is connected with a flexible nipple (6) through a spline. The flexible nipple (6) is hinged with a nipple main body (8) through a steel ball (7). The lower end of the flexible nipple (6) is sequentially connected with same flexible nipples through splines. The outer wall of the lower portion of the last flexible nipple (6) is sleeved with a lower pup joint (9), and a lower bearing (10) is installed in a cavity between the lower portion of the last flexible nipple (6) and the lower pup joint (9). The upper end of the lower pup joint (9) is fixedly connected with the tail end of the guide pipe (5). The lower end of the flexible nipple (6) is connected with a drill (11) through a spline. The horizontal well deflecting tool can bend in a unidirectional mode and has the advantages that deflecting efficiency is high, formed curvature radiuses are short, bearing capacity is strong, and the drill can drill in a predetermined direction.
Description
Technical field
The utility model relates to the oil drilling technical field, particularly relates to a kind of horizontal well deflecting tool.
Background technology
The oil drilling object is constructed by the simple structure section of thickening piece, mid-late oilfield development, major oil district water content rises, development difficulty is large, and cost is high, in addition a lot of regional Compacted rocks, reservoir is thin, interlayer is many etc., effectively solves these difficult problems, and best bet should be horizontal well drilling or extended reach well.Yet the wellbore construction of horizontal well has larger risk with comparing of straight well, and is many such as drilling failure, to reach geology purpose difficulty large.In horizontal well drilling, mainly to solve the problem of " standard " and " soon ", the two is maintained close ties with, but " standard " is topmost.Shoot square, say technically, mainly by two aspects: the one, effective deflecting and directional orientation tool; The 2nd, measuring apparatus accurately.The deflecting tool that rotating disk bores the horizontal well of fetching water can reach increasing hole angle, hold angle and three kinds of different-effects of drop angle.
Summary of the invention
In order to achieve the above object, the utility model provides a kind of Short Radius Horizontal Wells deflecting tool, has the advantages that the high formation of deflecting efficient radius of curvature is short, supporting capacity is strong, drill bit is crept into by predetermined direction but this horizontal well deflecting tool has bend in one direction.
The technical solution of the utility model is: this horizontal well deflecting tool comprises top connection, described top connection bottom cover has guard shield, between top connection and the guard shield bearing is installed, the guard shield lower thread is connected with short circuit, the short circuit lower end is fixed with conduit, there is flexible nipple the top connection lower end by spline joint, flexible nipple is hinged by steel ball and pipe nipple main body, the flexible nipple lower end connects identical flexible nipple successively by spline, last flexible nipple bottom outer wall cover has in the chamber between lower short circuit and lower short circuit and the flexible nipple bottom lower bearing is installed, the upper end of lower short circuit is fixedly connected with the end of conduit, and there is drill bit the lower end of flexible nipple by spline joint.
The utlity model has following beneficial effect: the utility model is owing to adopt technique scheme, and ectonexine relatively rotates, not torsion pass of skin, and flexible nipple has hinged characteristic, and can transmit torsion.But this horizontal well deflecting tool has bend in one direction and has the advantages that the high formation of deflecting efficient radius of curvature is short, supporting capacity is strong, drill bit is crept into by predetermined direction.
Description of drawings:
Accompanying drawing 1 is structural representation of the present utility model.
1-top connection among the figure, 2-guard shield, 3-bearing, 4-short circuit, 5-conduit, 6-flexible nipple, 7-steel ball, 8-pipe nipple main body, short circuit under the 9-, 10-lower bearing, 11-drill bit.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, this horizontal well deflecting tool comprises top connection 1, and described top connection 1 bottom cover has guard shield 2, between top connection 1 and the guard shield 2 bearing 3 is installed, bearing 3 is conducive to the pipe nipple rotation of top connection 1 and bottom, guard shield 2 lower thread are connected with short circuit 4, and short circuit 4 lower ends are fixed with conduit 5, and conduit 5 has the bend in one direction characteristics, short circuit 4 and conduit 5 does not transmit torsion and internal layer relatively rotates, conduit has the effect of support, guiding and stabilizing tool face, and length is fixed on demand, can transmit the pressure of the drill.There is flexible nipple 6 top connection 1 lower end by spline joint, flexible nipple 6 is hinged by steel ball 7 and pipe nipple main body 8, flexible nipple 6 lower ends connect identical flexible nipple successively by spline, flexible nipple 6 has hinged characteristic, can be crooked in certain angle, inner via hole is arranged, circulation of drilling fluid can be realized and torsion can be transmitted, number of connection is answered Len req and is decided, last flexible nipple 6 bottom outer wall cover has in the chamber between lower short circuit 9 and lower short circuit 9 and flexible nipple 6 bottoms lower bearing 10 is installed, the upper end of lower short circuit 9 is fixedly connected with the end of conduit 5, and there is drill bit 11 lower end of flexible nipple 6 by spline joint.
Claims (1)
1. horizontal well deflecting tool, comprise top connection (1), it is characterized in that: described top connection (1) bottom cover has guard shield (2), between top connection (1) and the guard shield (2) bearing (3) is installed, guard shield (2) lower thread is connected with short circuit (4), short circuit (4) lower end is fixed with conduit (5), there is flexible nipple (6) top connection (1) lower end by spline joint, flexible nipple (6) is hinged by steel ball (7) and pipe nipple main body (8), flexible nipple (6) lower end connects identical flexible nipple successively by spline, last flexible nipple (6) bottom outer wall cover has in the chamber between lower short circuit (9) and lower short circuit (9) and flexible nipple (6) bottom lower bearing (10) is installed, the upper end of lower short circuit (9) is fixedly connected with the end of conduit (5), and there is drill bit (11) lower end of flexible nipple (6) by spline joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220563127 CN202882761U (en) | 2012-10-30 | 2012-10-30 | Horizontal well deflecting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220563127 CN202882761U (en) | 2012-10-30 | 2012-10-30 | Horizontal well deflecting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202882761U true CN202882761U (en) | 2013-04-17 |
Family
ID=48074201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220563127 Expired - Fee Related CN202882761U (en) | 2012-10-30 | 2012-10-30 | Horizontal well deflecting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202882761U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939094A (en) * | 2014-05-14 | 2014-07-23 | 西南石油大学 | Formation deviating force measurement device and method |
-
2012
- 2012-10-30 CN CN 201220563127 patent/CN202882761U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103939094A (en) * | 2014-05-14 | 2014-07-23 | 西南石油大学 | Formation deviating force measurement device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130417 Termination date: 20201030 |