CN204002598U - Without thickening monolithic heavy weight drill pipe - Google Patents
Without thickening monolithic heavy weight drill pipe Download PDFInfo
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- CN204002598U CN204002598U CN201420358790.6U CN201420358790U CN204002598U CN 204002598 U CN204002598 U CN 204002598U CN 201420358790 U CN201420358790 U CN 201420358790U CN 204002598 U CN204002598 U CN 204002598U
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- heavy weight
- drill pipe
- middle body
- outer diameter
- male connection
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Abstract
The utility model discloses a kind of nothing thickening monolithic heavy weight drill pipe, it is by male connection, and female adapter and middle body form.Described male connection is identical with female adapter outer diameter.Middle body in the utility model is isometrical pipe, and its outer diameter score is located at male connection or the little 40mm～50mm of female adapter outer diameter at two ends.Because middle body is isometrical pipe, while making outer wall machining, because of without evagination shoulder, can accomplish feed shaping by stock removal one time.This kind of quantitative cutting can ensure crudy, can enhance productivity again.The monolithic heavy weight drill pipe that application the utility model is made, the each cross sectional shape of middle body and area equate, therefore can accomplish that intensity equates identical with flexibility value, can meet the process conditions of boring directional well, horizontal well or extended reach well completely.
Description
Technical field
The utility model relates to a kind of oil drilling tools, and specifically, the utility model relates to a kind of heavy weight drill pipe for oil drilling.
Background technology
Heavy weight drill pipe belongs to the some of oil drill string, and it,, between drill collar and conventional drilling rod, mainly plays the effect of transition connection and transmitting torque in drill string.Heavy weight drill pipe normal length, ten meters of left and right, belongs to typical slender rectangular tube.In order to meet the needs of oil drilling, join heavy weight drill pipe except having enough intensity and anti-corrosion requirement, also must have good flexibility to meet and bore the process conditions of directional well, horizontal well or extended reach well.The heavy weight drill pipe structure of prior art, except two ends union outer wall evagination, is provided with the shoulder of segmentation evagination on the external tube wall of intervalve, carrys out welding wear-resistant strip with this.Prior art arranges many shoulders on the external tube wall of heavy weight drill pipe intervalve, although this kind of shoulder type abrasion-proof structure structure is very simple, but the wear-resistant belt in the middle of two ends union diameter is greater than, therefore the abrasionproof effect of wear-resistant belt is also little, the intensity that causes on the contrary the different lateral cross section of heavy weight drill pipe is different and affect the flexibility value of the whole body of rod, is also unfavorable on the other hand the processing that is shaped.Segmentation machining must reduce the axiality between each shoulder, also reduces production efficiency simultaneously.
Utility model content
The utility model is mainly for the deficiency of prior art products, propose a kind of in the middle of body shape of cross section identical, area equate without thickening monolithic heavy weight drill pipe, this is simple in structure, be easy to machining, largest benefit is that each cross section flexibility value and intensity index equate.
The utility model is achieved through the following technical solutions technical goal.
Without thickening monolithic heavy weight drill pipe, it is made up of male connection, female adapter and middle body.Described male connection is identical with female adapter outer diameter.Its improvements are: in the middle of described, body is isometrical pipe, and male connection or female adapter outer diameter that its outer diameter score is located at two ends are little.
In said structure, the score of middle tube wall diameter is located at male connection or the little 40mm～50mm of female adapter outer diameter at two ends.
The utility model compared with prior art, has following good effect:
1, middle body is isometrical pipe, and therefore each cross sectional shape and area equate, therefore intensity is equal, flexibility value is identical;
2, middle body is isometrical pipe, is conducive to machining, and forming accuracy is good, and production efficiency is high.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
Detailed description of the invention
Below with reference to the accompanying drawings and in conjunction with the embodiments, the utility model is described in further detail.
Shown in Fig. 1 without thickening monolithic heavy weight drill pipe, it is made up of male connection 1, female adapter 2 and middle body 3.Described male connection 1 is identical with female adapter 2 outer diameters, and the middle body 3 that is positioned at waist is isometrical pipe, and it is smaller that its outer diameter score is located at male connection 1 or female adapter 2 outer diameters at two ends.The present embodiment be Φ 127mm without thickening monolithic heavy weight drill pipe, male connection 1 and female adapter 2 outer diameters are Φ 168.3mm, middle body 3 outer diameters are the isometrical pipe of Φ 127mm, both diameters are poor is 41.3mm.Because middle body 3 is isometrical pipe, while making outer wall machining, because of without evagination shoulder, can accomplish feed shaping by stock removal one time, this kind of quantitative cutting can ensure crudy, can enhance productivity again.The embodiment that application the utility model is made, the each cross sectional shape of middle body 3 and area are equal, therefore can accomplish that the intensity level in all cross sections equates, flexibility value is identical, can meet the process conditions of boring directional well, horizontal well or extended reach well completely.
Claims (2)
1. without a thickening monolithic heavy weight drill pipe, it is made up of male connection (1), female adapter (2) and middle body (3); Described male connection (1) is identical with female adapter (2) outer diameter; It is characterized in that: in the middle of described, body (3) is isometrical pipe, and male connection (1) or female adapter (2) outer diameter that its outer diameter score is located at two ends are little.
2. according to claim 1 without thickening monolithic heavy weight drill pipe, it is characterized in that: in the middle of described, body (3) outer diameter score is located at male connection (1) or the little 40mm～50mm of female adapter (2) outer diameter at two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420358790.6U CN204002598U (en) | 2014-07-01 | 2014-07-01 | Without thickening monolithic heavy weight drill pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420358790.6U CN204002598U (en) | 2014-07-01 | 2014-07-01 | Without thickening monolithic heavy weight drill pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204002598U true CN204002598U (en) | 2014-12-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420358790.6U Active CN204002598U (en) | 2014-07-01 | 2014-07-01 | Without thickening monolithic heavy weight drill pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204002598U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153715A (en) * | 2014-07-01 | 2014-11-19 | 江苏曙光华阳钻具有限公司 | Integral type heavy weight drill pipe without thickening |
-
2014
- 2014-07-01 CN CN201420358790.6U patent/CN204002598U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104153715A (en) * | 2014-07-01 | 2014-11-19 | 江苏曙光华阳钻具有限公司 | Integral type heavy weight drill pipe without thickening |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |