CN201771444U - Drill collar with thickened part at central position of pipe - Google Patents
Drill collar with thickened part at central position of pipe Download PDFInfo
- Publication number
- CN201771444U CN201771444U CN2010205254603U CN201020525460U CN201771444U CN 201771444 U CN201771444 U CN 201771444U CN 2010205254603 U CN2010205254603 U CN 2010205254603U CN 201020525460 U CN201020525460 U CN 201020525460U CN 201771444 U CN201771444 U CN 201771444U
- Authority
- CN
- China
- Prior art keywords
- drill collar
- pipe
- male joint
- joint
- central position
- 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
The utility model relates to a drill collar, and particularly to a drill collar with a thickened part at the central position of pipe, which is mainly used for excavating petroleum, natural gas, water source and minerals and belongs to the technical field of drilling machine. The drill collar with thickened part at central position of pipe is characterized in that: the drill collar comprises a pipe (1), a male joint (2), a female joint (3) and a thickened segment (4) of the pipe; the pipe (1) is provided with the thickened segment (4) of the pipe at the central position; the top end of the pipe (1) is provided with the male joint (2), and the bottom is provided with the female joint (3); the male joint (2) is provided with a joint sleeve (2.1) which is provided with internal thread. The drill collar with a thickened part at the central position of pipe has the following advantages: thickened central segment of pipe, improved strength of drill collar, and prolonged service life of drill collar. The male joint of the pipe of spiral drill collar is sleeved by the joint sleeve which can perform a protection function for the male joint.
Description
(1) technical field
The utility model relates to a kind of drill collar, relates in particular to the drill collar of thickening in the middle of a kind of body, is mainly used in the probing of oil, natural gas, water source, mineral reserve, belongs to the drilling rig technique field.
(2) background technology
In the drilling process of oil, natural gas, water source and mineral reserve, all need to use drill collar.Though the structure of drill collar is simple, its quality requirement that will reach is but than higher.Common drill collar is in the process of probing, and the impact that is subjected to is bigger, and the drill collar junction is given a shock damage easily.May also can cause drill collar work undesired for a long time in the past, even cause security incident; Drill collar is before unassembled, and the external screw thread of male joint place is worn easily, causes can't normally connecting between the drill collar.
(3) summary of the invention
In order to overcome above-mentioned deficiency, the utility model provides a kind of intensity higher, is shaken lessly, and application life is longer, and can protect the drill collar of thickening in the middle of the body of male joint effectively.
The purpose of this utility model is achieved in that
The utility model relates to the drill collar of thickening in the middle of a kind of body, it comprises body, male joint, female joint and body thick section, be provided with the body thick section in the middle of the described body, the top of described body is provided with male joint, end is provided with female joint, described male joint is provided with fitting sleeve, and described fitting sleeve is provided with internal thread.
The beneficial effect that the drill collar of thickening has in the middle of the utility model body is:
The drill collar of thickening has increased the intensity of drill collar to the thickening of body interlude in the middle of this body, has reduced the vibrations that body was subjected to when drill collar was drilled, and has prolonged the application life of drill collar.Be with fitting sleeve in the male joint of grooved drill collar body, can play a protective role, prevent that external screw thread in the male joint is worn and causes can't connecting between the drill collar male joint.
(4) description of drawings
Fig. 1 is the structural representation of the drill collar of thickening in the middle of the utility model body.
Fig. 2 is the structural representation after the drill collar of the middle thickening of the utility model body removes fitting sleeve.
Wherein: body 1, male joint 2, fitting sleeve 2.1, female joint 3, body thick section 4.
(5) specific embodiment
As Fig. 1 and Fig. 2, the utility model relates to the drill collar of thickening in the middle of a kind of body, mainly form by body 1, male joint 2, female joint 3 and body thick section 4, be provided with body thick section 4 in the middle of the described body 1, increased the intensity of drill collar, reduce the vibrations that have been subjected to when drill collar is drilled, prolonged the application life of drill collar.The top of described body 1 is provided with male joint 2; end is provided with female joint 3; described male joint 2 is provided with fitting sleeve 2.1; described fitting sleeve 2.1 is provided with internal thread; described fitting sleeve 2.1 can play a protective role to male joint 2, prevents that screw thread in the male joint 2 is worn and causes male joint 2 can't be connected with female joint 3.
Claims (1)
1. the drill collar of thickening in the middle of the body, it is characterized in that: it comprises body (1), male joint (2), female joint (3) and body thick section (4), be provided with body thick section (4) in the middle of the described body (1), the top of described body (1) is provided with male joint (2), end is provided with female joint (3), described male joint (2) is provided with fitting sleeve (2.1), and described fitting sleeve (2.1) is provided with internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205254603U CN201771444U (en) | 2010-09-10 | 2010-09-10 | Drill collar with thickened part at central position of pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205254603U CN201771444U (en) | 2010-09-10 | 2010-09-10 | Drill collar with thickened part at central position of pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201771444U true CN201771444U (en) | 2011-03-23 |
Family
ID=43751289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205254603U Expired - Fee Related CN201771444U (en) | 2010-09-10 | 2010-09-10 | Drill collar with thickened part at central position of pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201771444U (en) |
-
2010
- 2010-09-10 CN CN2010205254603U patent/CN201771444U/en not_active Expired - Fee Related
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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: 20110323 Termination date: 20170910 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |