CN202645428U - Deflecting device for horizontal drilling - Google Patents
Deflecting device for horizontal drilling Download PDFInfo
- Publication number
- CN202645428U CN202645428U CN 201220319640 CN201220319640U CN202645428U CN 202645428 U CN202645428 U CN 202645428U CN 201220319640 CN201220319640 CN 201220319640 CN 201220319640 U CN201220319640 U CN 201220319640U CN 202645428 U CN202645428 U CN 202645428U
- Authority
- CN
- China
- Prior art keywords
- pipe
- deflecting device
- drilling
- outer cylinder
- urceolus
- 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
A deflecting device for horizontal drilling is formed by an upper connector capable of being connected with a spiral drilling rig, an outer cylinder and a flexible drilling pipe installed in the outer cylinder. The deflecting device is characterized in that the outer cylinder is composed of two circular pipe short sections which are sequentially connected through a pin, have different diameters and are mutually inserted and connected in series, a sliding connector is installed on an outer lateral wall of the short sections at one circular pipe short section intervals, and the sliding connector is connected with an elastic reinforcing steel bar and arranged in a sliding limiting groove. Compared with the prior art, the deflecting device has the advantages of being simple in structure, low in manufacture cost, convenient to construct and operate, firm and durable.
Description
Technical field
The utility model belongs to the petroleum drilling engineering special tool, is specifically related to a kind of whipstock for horizontal well drilling.
Background technology
The prior art kick-off device mainly is comprised of the flexible drilling pipe of the curved shell of elasticity and interior encapsulation thereof, exists the curved shell mechanism of elasticity and processing technology complicated, and manufacturing cost is high, and difficulty of construction is larger, the problem that durability is not high.
Summary of the invention
The purpose of this utility model is design in order to overcome defective of the prior art a kind of simple in structure, the whipstock for horizontal well drilling of low cost of manufacture and long service life.
The purpose of this utility model is achieved in that
A kind of whipstock for horizontal well drilling, consisted of by 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 different pipe pipe nipple of two above diameters that urceolus is connected successively by pin is mutually pegged graft to contact and is formed, whenever the pipe nipple lateral wall of a pipe pipe nipple of being separated by arranges slip joint, and slip joint connects elastic steel bar and also places in the slip stopper slot.
The utility model compared with prior art has simple in structure, low cost of manufacture, and constructing operation is convenient, robust advantage.
Description of drawings
Fig. 1 is the utility model structural representation.
Wherein, 1-top connection, 2-urceolus, 3-pipe pipe nipple, 4-lower contact, 5-slip joint, 6-elastic steel bar, 7-slip stopper slot, 8-pin.
Specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of whipstock for horizontal well drilling described in the utility model, 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 is mutually to be pegged graft by the different pipe pipe nipple 3 of two above diameters that pin 8 connects to be composed in series, be provided with the taper groove at the two ends of pipe pipe nipple 3, one side has slip stopper slot 7, and elastic steel bar 6 is installed in the groove, and elastic steel bar 6 is connected on the pipe pipe nipple 3 by slip joint 5; Flexible drilling pipe is the prior art means, and the Universal flexible hollow casing that can be comprised of the petal pipe nipple of tubulose of hollow cross axle serial connection and high-pressure rubber pipe and the lower contact 4 of liner thereof form.
The utility model, is passed to drill bit with moment of torsion and carries out the deflecting construction by the in-built Universal flexible hollow casing rotation of the axle drive urceolus of helicoid hydraulic motor by the direction of urceolus control deflecting, and elastic steel bar adds the durability of bigger device, improves application life.
Claims (1)
1. whipstock for horizontal well drilling, consisted of by 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 different pipe pipe nipple of two above diameters that urceolus is connected successively by pin is mutually pegged graft to contact and is formed, whenever the pipe nipple lateral wall of a pipe pipe nipple of being separated by arranges slip joint, and slip joint connects elastic steel bar and also places in the slip stopper slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220319640 CN202645428U (en) | 2012-07-04 | 2012-07-04 | Deflecting device for horizontal drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220319640 CN202645428U (en) | 2012-07-04 | 2012-07-04 | Deflecting device for horizontal drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202645428U true CN202645428U (en) | 2013-01-02 |
Family
ID=47414550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220319640 Expired - Fee Related CN202645428U (en) | 2012-07-04 | 2012-07-04 | Deflecting device for horizontal drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202645428U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135227A (en) * | 2020-09-04 | 2022-03-04 | 万晓跃 | High-stability short-radius deflecting drilling tool |
-
2012
- 2012-07-04 CN CN 201220319640 patent/CN202645428U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114135227A (en) * | 2020-09-04 | 2022-03-04 | 万晓跃 | High-stability short-radius deflecting drilling tool |
| CN114135227B (en) * | 2020-09-04 | 2023-08-08 | 万晓跃 | High-stability short-radius deflecting drilling tool |
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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 |
Granted publication date: 20130102 Termination date: 20170704 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |