CN106014281A - Highly anti-torque drill rod - Google Patents
Highly anti-torque drill rod Download PDFInfo
- Publication number
- CN106014281A CN106014281A CN201610549193.5A CN201610549193A CN106014281A CN 106014281 A CN106014281 A CN 106014281A CN 201610549193 A CN201610549193 A CN 201610549193A CN 106014281 A CN106014281 A CN 106014281A
- Authority
- CN
- China
- Prior art keywords
- drill rod
- thread
- drilling rod
- rod body
- external screw
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/042—Threaded
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a highly anti-torque drill rod which is characterized by comprising a drill rod body (1), wherein an external thread (2) is arranged on the periphery of a pin small end of the drill rod body (1); an internal thread (3) is arranged on the inner wall of a box big end of the drill rod body (1); the external threads (2) and the internal threads (3) of two adjacent drill rods are meshed so as to connect the two drill rods; step surfaces are arranged at the upper and lower ends of the external thread (2) and the upper and lower ends of the internal thread (3) of the drill rod body (1); the steps at the lower end of the external thread (2) and the lower end of the internal thread (3) are main shoulders (4); and the steps at the upper end of the external thread (2) and the upper end of the internal thread (3) are auxiliary shoulders (5). The highly anti-torque drill rod provided by the invention can guarantee accurate realization of interference fit between the main shoulders and the thread section; the auxiliary shoulders also bear some load in a working state and realize certain overload protection effect; and moreover, the anti-torque intensity of the drill rod can be improved, and the safety of the drill rod is guaranteed.
Description
Technical field
The present invention relates to a kind of high antitorque drilling rod, belong to oil drill rocker technical field.
Background technology
In the drilling process of oil, natural gas, water source and mineral reserve, it is required for using drilling rod.Drilling rod is coupled together by tool joint, and in During regular rotation, drilling rod to bear the effect of external and internal pressure, axial force, moment of flexure and moment of torsion simultaneously.
But common drilling rod torsional strength is the highest, when, after life-time service, tool joint can frequently occur failure accidents so that it is become the principal mode that drilling rod lost efficacy.The most current tool joint is badly in need of to transmit bigger moment of torsion, to adapt to the working environment of various complexity.
Summary of the invention
It is an object of the invention to overcome above-mentioned deficiency, it is provided that a kind of intensity is high, the antitorque drilling rod of height that safety is good.
The object of the present invention is achieved like this:
A kind of high antitorque drilling rod, it includes drilling rod body, the periphery of the pin thread small end of described drilling rod body is provided with external screw thread, the inwall of the big end of box of drilling rod body is provided with female thread, the external screw thread of adjacent two drilling rods engages with female thread, two drilling rods are coupled together, and drilling rod body offers step surface at the two ends up and down at externally threaded upper and lower two ends and female thread, wherein the step of external screw thread lower end and female thread lower end is main shoulder, and the step of external screw thread upper end and female thread upper end is slave station shoulder.
The present invention is high, and antitorque drilling rod has the advantage that
The high antitorque drilling rod of the present invention is takeed on by adding a slave station in the engagement place of the big end of pin thread small end and box; slave station shoulder and main shoulder i.e. form dual stage shoulder structure; main circular bead surface and thread segment produce certain interference fit; slave station is takeed on the most just to have in certain auxiliary and is anchored bit function; thus ensure the accurate realization of main circular bead surface and thread segment interference fit; in addition; slave station shoulder in working order in also can receiving portion separate loading; play certain overload protective function; and the torsional strength of drilling rod can also be improved, it is ensured that the safety of drilling rod.
Accompanying drawing explanation
Fig. 1 is the structural representation of the high antitorque drilling rod of the present invention.
In figure: drilling rod body 1, external screw thread 2, female thread 3, main shoulder 4, slave station shoulder 5.
Detailed description of the invention
See Fig. 1, the present invention relates to a kind of high antitorque drilling rod, including drilling rod body 1, the periphery of the pin thread small end of described drilling rod body 1 is provided with external screw thread 2, the inwall of the big end of box of drilling rod body 1 is provided with female thread 3, the external screw thread 2 of adjacent two drilling rods engages with female thread 3, two drilling rods are coupled together, and drilling rod body 1 offers step surface at the two ends up and down of external screw thread 2 and the two ends up and down of female thread 3, wherein the step of external screw thread 2 lower end and female thread 3 lower end is main shoulder 4, and the step of external screw thread 2 upper end and female thread 3 upper end is slave station shoulder 5.
Described main shoulder 4 and slave station shoulder 5 i.e. form dual stage shoulder structure; main shoulder 4 and thread segment produce certain interference fit; slave station shoulder 5 the most just has in certain auxiliary and anchors bit function; thus ensure the accurate realization of the interference fit of main shoulder 4 and thread segment; additionally, slave station shoulder 5 in working order in also can receiving portion separate loading, play certain overload protective function; and the torsional strength of drilling rod can also be improved, it is ensured that the safety of drilling rod.
Claims (1)
1. one kind high antitorque drilling rod, it is characterized in that: it includes drilling rod body (1), the periphery of the pin thread small end of described drilling rod body (1) is provided with external screw thread (2), the inwall of the big end of box of drilling rod body (1) is provided with female thread (3), the external screw thread (2) of adjacent two drilling rods engages with female thread (3), two drilling rods are coupled together, and drilling rod body (1) offers step surface at the two ends up and down at the two ends up and down of external screw thread (2) and female thread (3), wherein the step of external screw thread (2) lower end and female thread (3) lower end is main shoulder (4), the step of external screw thread (2) upper end and female thread (3) upper end is that slave station takes on (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610549193.5A CN106014281A (en) | 2016-07-13 | 2016-07-13 | Highly anti-torque drill rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610549193.5A CN106014281A (en) | 2016-07-13 | 2016-07-13 | Highly anti-torque drill rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106014281A true CN106014281A (en) | 2016-10-12 |
Family
ID=57117908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610549193.5A Pending CN106014281A (en) | 2016-07-13 | 2016-07-13 | Highly anti-torque drill rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106014281A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049823A (en) * | 2017-11-22 | 2018-05-18 | 江阴德玛斯特钻具有限公司 | High antitorque, anti-rock drilling rod |
| CN112901089A (en) * | 2019-11-19 | 2021-06-04 | 扬州埃尔智能设备有限公司 | High-strength low-current-consumption energy-saving intelligent drilling tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4548431A (en) * | 1981-12-17 | 1985-10-22 | Hughes Tool Company - Usa | Tool joint with internal/external make-up shoulders |
| CN201202413Y (en) * | 2008-03-28 | 2009-03-04 | 上海海隆石油管材研究所 | Drill rod joint with good anti-torque performance |
| CN201513136U (en) * | 2009-09-27 | 2010-06-23 | 无锡西姆莱斯石油专用管制造有限公司 | Double-shoulder drill pipe joint |
| CN201705226U (en) * | 2010-06-21 | 2011-01-12 | 中国石油天然气集团公司 | Integral type double-shoulder sulfur resistant drill rod |
| CN202900066U (en) * | 2012-11-14 | 2013-04-24 | 中煤科工集团西安研究院 | Externally-flush geological drill rod using double-top double-cone connection form |
| CN203796186U (en) * | 2013-12-31 | 2014-08-27 | 海隆石油钻具（无锡）有限公司 | Improved two-shoulder oil drill pipe joint |
-
2016
- 2016-07-13 CN CN201610549193.5A patent/CN106014281A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4548431A (en) * | 1981-12-17 | 1985-10-22 | Hughes Tool Company - Usa | Tool joint with internal/external make-up shoulders |
| CN201202413Y (en) * | 2008-03-28 | 2009-03-04 | 上海海隆石油管材研究所 | Drill rod joint with good anti-torque performance |
| CN201513136U (en) * | 2009-09-27 | 2010-06-23 | 无锡西姆莱斯石油专用管制造有限公司 | Double-shoulder drill pipe joint |
| CN201705226U (en) * | 2010-06-21 | 2011-01-12 | 中国石油天然气集团公司 | Integral type double-shoulder sulfur resistant drill rod |
| CN202900066U (en) * | 2012-11-14 | 2013-04-24 | 中煤科工集团西安研究院 | Externally-flush geological drill rod using double-top double-cone connection form |
| CN203796186U (en) * | 2013-12-31 | 2014-08-27 | 海隆石油钻具（无锡）有限公司 | Improved two-shoulder oil drill pipe joint |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049823A (en) * | 2017-11-22 | 2018-05-18 | 江阴德玛斯特钻具有限公司 | High antitorque, anti-rock drilling rod |
| CN112901089A (en) * | 2019-11-19 | 2021-06-04 | 扬州埃尔智能设备有限公司 | High-strength low-current-consumption energy-saving intelligent drilling tool |
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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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |