CN211397453U - Double-bending screw drilling tool - Google Patents
Double-bending screw drilling tool Download PDFInfo
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- CN211397453U CN211397453U CN202020082684.5U CN202020082684U CN211397453U CN 211397453 U CN211397453 U CN 211397453U CN 202020082684 U CN202020082684 U CN 202020082684U CN 211397453 U CN211397453 U CN 211397453U
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Abstract
The utility model relates to a double-bending screw drilling tool, which comprises a drill bit, a transmission shaft assembly, an adjustable bending assembly, a motor assembly, an anti-falling assembly and a bypass valve assembly, wherein the drill bit and the transmission shaft assembly are fixedly connected, the transmission shaft assembly and the adjustable bending assembly are connected through a screw buckle, the adjustable bending assembly and the anti-falling assembly are respectively connected at two ends of the motor assembly, and the anti-falling assembly is connected with the bypass valve assembly through a screw buckle; the side surfaces of the anti-drop assembly and the bypass valve assembly are fixedly connected with eccentric blocks. The utility model discloses an improvement of doing on current drilling tool assembly through increasing the eccentric block at drilling tool stator tip, at the in-process of deflecting, through the external force of eccentric block for the drilling tool build slope improves 50%, can get into development target layer more accurately sooner.
Description
Technical Field
The utility model belongs to the petroleum machinery field relates to a two curved screw rod drilling tools.
Background
In the development and exploitation process of oil and gas fields, drilling engineering is one of indispensable processes, the technical level of various power drilling tools used for drilling is continuously improved along with the continuous improvement of the world drilling technology in several years, at present, the short-radius and ultrashort-radius drilling process is an important technical means for mining residual oil in middle and old aged oil fields, and in the deflecting drilling process, the drilling tool combination is required to achieve the following conditions: high inclination increasing speed, uniform inclination increasing, high drilling speed and the like. However, the deflecting drilling tools used in China generally adopt drilling tool combinations imported from abroad, only single bending can be realized, and the deflecting effect is limited to a certain extent. Accordingly, certain improvements in such drilling assemblies are desirable.
Disclosure of Invention
The utility model aims at providing a two curved screw rod drilling tools overcomes the drilling tool combination that uses at present, can only realize single curved, and the effect of deflecting receives the problem of certain restriction.
The utility model discloses a following technical scheme realizes: a double-bending screw drill comprises a drill bit, a transmission shaft assembly, an adjustable bending assembly, a motor assembly, an anti-falling assembly and a bypass valve assembly, wherein the drill bit and the transmission shaft assembly are fixedly connected, the transmission shaft assembly and the adjustable bending assembly are connected through a screw buckle, the adjustable bending assembly and the anti-falling assembly are respectively connected to two ends of the motor assembly, and the anti-falling assembly is connected with the bypass valve assembly through a screw buckle; the side surfaces of the anti-drop assembly and the bypass valve assembly are fixedly connected with eccentric blocks.
Furthermore, 0-3 degrees of bending can be formed between the transmission shaft assembly and the adjustable bending assembly.
Adopt above-mentioned technical scheme's positive effect: the utility model discloses an improvement of doing on current drilling tool assembly through increasing the eccentric block at drilling tool stator tip, at the in-process of deflecting, through the external force of eccentric block for the drilling tool build slope improves 50%, can get into development target layer more accurately sooner.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, a drill bit 1, a transmission shaft assembly 2, an adjustable bending assembly 3, a motor assembly 4, an anti-dropping assembly 5, a bypass valve assembly 6 and an eccentric block 7.
Detailed Description
The technical solution of the present invention is further described below with reference to the accompanying drawings, but should not be construed as limiting the present invention:
fig. 1 is the structural schematic diagram of the utility model, as shown in the figure, a two curved screw rod drilling tools, including drill bit 1, transmission shaft assembly 2, adjustable curved assembly 3, motor assembly 4, prevent falling assembly 5, bypass valve assembly 6, fixed connection between drill bit 1 and the transmission shaft assembly 2, connect through the turn buckle between transmission shaft assembly 2 and the adjustable curved assembly 3, adjustable curved assembly 3 and prevent falling assembly 5 and connect respectively at the both ends of motor assembly 4, prevent falling assembly 5 and bypass valve assembly 6 again and pass through the turn buckle and connect. The side surfaces of the anti-drop assembly 5 and the bypass valve assembly 6 are fixedly connected with eccentric blocks 7. The eccentric block is mounted on the end of the stator of the drilling tool, and the drilling tool is easier to bend by acting force between the eccentric block and the well wall.
And 0-3 degrees of bending can be formed between the transmission shaft assembly 2 and the adjustable bending assembly 3.
The drilling tool assembly has the advantages that firstly, the transmission shaft assembly and the adjustable bending assembly are connected through the screw buckle to form certain bending degree, and secondly, the bending degree of the drilling tool is larger under the action of the eccentric block, so that the single-bending structure is changed into the double-bending structure.
The utility model discloses an improvement of doing on current drilling tool assembly through increasing the eccentric block at drilling tool stator tip, at the in-process of deflecting, through the external force of eccentric block for the drilling tool build slope improves 50%, can get into development target layer more accurately sooner.
Claims (2)
1. The utility model provides a two curved screw rod drilling tools, including drill bit (1), transmission shaft assembly (2), adjustable curved assembly (3), motor assembly (4), prevent falling assembly (5), bypass valve assembly (6), fixed connection between drill bit (1) and transmission shaft assembly (2), connect through the turn buckle between transmission shaft assembly (2) and adjustable curved assembly (3), the both ends in motor assembly (4) are connected respectively in adjustable curved assembly (3) and prevent falling assembly (5), prevent falling assembly (5) and bypass valve assembly (6) again through the turn buckle connection, its characterized in that: the side surfaces of the anti-drop assembly (5) and the bypass valve assembly (6) are fixedly connected with eccentric blocks (7).
2. The double-bent screw drill according to claim 1, wherein: the transmission shaft assembly (2) and the adjustable bending assembly (3) can form 0-3 degrees of bending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020082684.5U CN211397453U (en) | 2020-01-15 | 2020-01-15 | Double-bending screw drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020082684.5U CN211397453U (en) | 2020-01-15 | 2020-01-15 | Double-bending screw drilling tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211397453U true CN211397453U (en) | 2020-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020082684.5U Active CN211397453U (en) | 2020-01-15 | 2020-01-15 | Double-bending screw drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211397453U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863850A (en) * | 2021-10-21 | 2021-12-31 | 盐城市荣嘉机械制造有限公司 | Single-double-bending conversion multifunctional hinge motor for ultra-short radius horizontal drilling |
| CN116624089A (en) * | 2023-07-17 | 2023-08-22 | 山东石油化工学院 | Double-bending directional motor |
-
2020
- 2020-01-15 CN CN202020082684.5U patent/CN211397453U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113863850A (en) * | 2021-10-21 | 2021-12-31 | 盐城市荣嘉机械制造有限公司 | Single-double-bending conversion multifunctional hinge motor for ultra-short radius horizontal drilling |
| CN113863850B (en) * | 2021-10-21 | 2022-08-23 | 盐城市荣嘉机械制造有限公司 | Single-double-bending conversion multifunctional hinge motor for ultra-short radius horizontal drilling |
| CN116624089A (en) * | 2023-07-17 | 2023-08-22 | 山东石油化工学院 | Double-bending directional motor |
| CN116624089B (en) * | 2023-07-17 | 2023-09-12 | 山东石油化工学院 | Double-bending directional motor |
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