CN104153715A - Integral type heavy weight drill pipe without thickening - Google Patents
Integral type heavy weight drill pipe without thickening Download PDFInfo
- Publication number
- CN104153715A CN104153715A CN201410308059.7A CN201410308059A CN104153715A CN 104153715 A CN104153715 A CN 104153715A CN 201410308059 A CN201410308059 A CN 201410308059A CN 104153715 A CN104153715 A CN 104153715A
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- Prior art keywords
- heavy weight
- thickening
- pipe
- diameter
- wall
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Abstract
The invention discloses an integral type heavy weight drill pipe without thickening. The integral type heavy weight drill pipe without thickening is composed of a male adapter, a female adapter and a middle pipe, wherein the diameter of the outer wall of the male adapter and the diameter of the outer wall of the female adapter are identical. The middle pipe of the integral type heavy weight drill pipe without thickening is a round pipe with a constant diameter, the diameter of the outer wall of the middle pipe is 40 mm-50 mm smaller than the diameter of the outer wall of the male adapter arranged at one end or the diameter of the outer wall of the female adapter arranged at the other end. Due to the fact that the middle pipe is the round pipe with the constant diameter, when outer wall cutting machining is conducted, cutting forming at one-time cutter feeding can be achieved due to the fact that convex shoulders do not exist. By means of quantification cutting, machining quality can be ensured, and production efficiency can be improved. Through the application of the integral type heavy weight drill pipe without thickening, the shapes and the area of all sections of the middle pipe are equal, strength equality and flexibility value identity can be achieved, and the technology conditions for drilling directional wells or horizontal wells or large displacement wells can be completely met.
Description
Technical field
The present invention relates to a kind of oil drilling tools, specifically, the present invention 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.
Summary of the invention
The present invention 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, is easy to machining, largest benefit is that each cross section flexibility value and intensity index equate.
The present invention 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 present invention 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 structural representation of the present invention.
Detailed description of the invention
Below with reference to the accompanying drawings and in conjunction with the embodiments, the invention will be further described.
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 present invention makes, 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 |
|---|---|---|---|
| CN201410308059.7A CN104153715A (en) | 2014-07-01 | 2014-07-01 | Integral type heavy weight drill pipe without thickening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410308059.7A CN104153715A (en) | 2014-07-01 | 2014-07-01 | Integral type heavy weight drill pipe without thickening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104153715A true CN104153715A (en) | 2014-11-19 |
Family
ID=51879326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410308059.7A Pending CN104153715A (en) | 2014-07-01 | 2014-07-01 | Integral type heavy weight drill pipe without thickening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104153715A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020193004A1 (en) * | 2001-06-14 | 2002-12-19 | Boyle Bruce W. | Wired pipe joint with current-loop inductive couplers |
| CN203161104U (en) * | 2013-04-01 | 2013-08-28 | 贾丽萍 | Straightening abrasion-proof hollow sucker rod |
| CN203188925U (en) * | 2013-05-02 | 2013-09-11 | 刘岩 | External thickening coupling-free casing |
| CN203257337U (en) * | 2013-04-25 | 2013-10-30 | 上海海隆石油管材研究所 | Non-thickened connection type thick-wall drill rod |
| CN103470191A (en) * | 2013-09-24 | 2013-12-25 | 上海海隆石油管材研究所 | Drill rod structure with high-station structure, and manufacturing method |
| CN203499578U (en) * | 2013-09-03 | 2014-03-26 | 上海海隆石油钻具有限公司 | Deep water landing drilling rod |
| CN204002598U (en) * | 2014-07-01 | 2014-12-10 | 江苏曙光华阳钻具有限公司 | Without thickening monolithic heavy weight drill pipe |
-
2014
- 2014-07-01 CN CN201410308059.7A patent/CN104153715A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020193004A1 (en) * | 2001-06-14 | 2002-12-19 | Boyle Bruce W. | Wired pipe joint with current-loop inductive couplers |
| CN203161104U (en) * | 2013-04-01 | 2013-08-28 | 贾丽萍 | Straightening abrasion-proof hollow sucker rod |
| CN203257337U (en) * | 2013-04-25 | 2013-10-30 | 上海海隆石油管材研究所 | Non-thickened connection type thick-wall drill rod |
| CN203188925U (en) * | 2013-05-02 | 2013-09-11 | 刘岩 | External thickening coupling-free casing |
| CN203499578U (en) * | 2013-09-03 | 2014-03-26 | 上海海隆石油钻具有限公司 | Deep water landing drilling rod |
| CN103470191A (en) * | 2013-09-24 | 2013-12-25 | 上海海隆石油管材研究所 | Drill rod structure with high-station structure, and manufacturing method |
| CN204002598U (en) * | 2014-07-01 | 2014-12-10 | 江苏曙光华阳钻具有限公司 | Without thickening monolithic heavy weight drill pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141119 |