CN105422017A - Drill rod joint with resistance reduction and wear reduction functions - Google Patents
Drill rod joint with resistance reduction and wear reduction functions Download PDFInfo
- Publication number
- CN105422017A CN105422017A CN201511017900.8A CN201511017900A CN105422017A CN 105422017 A CN105422017 A CN 105422017A CN 201511017900 A CN201511017900 A CN 201511017900A CN 105422017 A CN105422017 A CN 105422017A
- Authority
- CN
- China
- Prior art keywords
- joint
- drill rod
- wear
- reduction
- buckle joint
- 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
- 238000005553 drilling Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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
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
A drill rod joint with resistance reduction and wear reduction functions comprises a male buckle joint and a female buckle joint, wherein the excircle of the section of a wear-reducing band of each of the male buckle joint and a female buckle joint is oval, the short radius of the wear-reducing band of the male buckle joint or the female buckle joint is equal to that of a conventional drill rod joint, and the long radius is 1.05-2 times of the short radius. A drill rod generates small-amplitude radial vibration in the rotation and drilling processes, and the contact time between a drill string and the well wall is shortened, the frictional resistance is reduced, and wear is reduced to the certain extent. The drill rod joint is simple in structure and good in wear reduction effect.
Description
Technical field
The present invention relates to a kind of oilfield drilling apparatus.
Background technology
In oil-gas field development, along with the progress of drilling technology, casing programme more sophisticated, also result in the stressed complexity of tubing string, causes: greatly, moment of torsion transmits difficulty for (1) drill string and borehole wall contact friction force; (2) serious wear of drilling rod and sleeve pipe, brings heavy losses to oil field.
Summary of the invention
The object of the present invention is to provide a kind of can the drag reduction anti-attrition tool joint of reducing friction resistance and wearing and tearing.
Technical scheme of the present invention is as follows:
The present invention includes male joint and female connector, the anti-attrition band cross section cylindrical of described male joint and female connector is oval, and the short radius of the anti-attrition band of pin thread or box is identical with conventional drill rod joint, and major radius is 1.05 ~ 2 times of short radius.Drilling rod produces radial vibration by a small margin in rotary drilling process, and the time of contact between drill string and the borehole wall is reduced, thus reducing friction resistance, and reduce wearing and tearing to a certain extent.
The present invention compared with prior art tool has the following advantages
(1) structure is simple;
(2) drag-reduction effect is good.
Accompanying drawing explanation
Fig. 1 is the structural representation sketch of drag reduction anti-attrition fillet of tool joint pins of the present invention;
Fig. 2 is the lateral view of Fig. 1;
Fig. 3 is the structural representation sketch of drag reduction anti-attrition tool joint box of the present invention;
Fig. 4 is the connection diagram between drag reduction anti-attrition tool joint of the present invention and conventional drill rod joint, and wherein a is that male joint of the present invention is connected with conventional female joint, b is the connection that female joint of the present invention is connected with conventional male joint, c is pin and box sub of the present invention.
In figure: 1-male joint, 2-anti-attrition band, 3-body, 4-female connector.
Detailed description of the invention
In the drag reduction anti-attrition tool joint schematic diagram shown in Fig. 1-Fig. 3, the body 3 of male joint 1 and female connector 4 is conventional body, the anti-attrition band 2 cross section cylindrical of male joint and female connector is oval, the short radius of the anti-attrition band of pin thread or box is identical with conventional drill rod joint, and major radius is 1.05 ~ 2 times of short radius.This joint welds with drill pipe body two ends, and using method is identical with common tool joint.As shown in Figure 4, male joint of the present invention can be connected (as shown in fig. 4 a) with conventional female joint, female joint of the present invention can be connected with conventional male joint (as shown in Figure 4 b), male joint of the present invention can with the connection of female joint of the present invention, two contact cross-section cylindrical major radius angles (as illustrated in fig. 4 c) between 0 ° and 90 °.
Claims (1)
1. a drag reduction anti-attrition tool joint, comprise male joint and female connector, it is characterized in that: the anti-attrition band cross section cylindrical of described male joint and female connector is for oval, and the short radius of the anti-attrition band of pin thread or box is identical with conventional drill rod joint, and major radius is 1.05 ~ 2 times of short radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511017900.8A CN105422017A (en) | 2015-12-31 | 2015-12-31 | Drill rod joint with resistance reduction and wear reduction functions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511017900.8A CN105422017A (en) | 2015-12-31 | 2015-12-31 | Drill rod joint with resistance reduction and wear reduction functions |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105422017A true CN105422017A (en) | 2016-03-23 |
Family
ID=55500512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511017900.8A Pending CN105422017A (en) | 2015-12-31 | 2015-12-31 | Drill rod joint with resistance reduction and wear reduction functions |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105422017A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB520088A (en) * | 1938-10-12 | 1940-04-15 | Eidco Inc | Improvements in or relating to rock drilling equipment |
| US4428441A (en) * | 1979-04-04 | 1984-01-31 | Mobil Oil Corporation | Method and apparatus for reducing the differential pressure sticking tendency of a drill string |
| CN1232904A (en) * | 1998-03-19 | 1999-10-27 | 株式会社地盘试验所 | Mechanical ground anchor |
| WO2005111368A1 (en) * | 2004-05-15 | 2005-11-24 | Cromar Limited | Improvement in or relating to roller subs |
| CN200964801Y (en) * | 2006-04-12 | 2007-10-24 | 胡红梅 | Eccentric wear prevention antiseptic joint |
| CN201306130Y (en) * | 2008-09-24 | 2009-09-09 | 东营市兆鑫工贸有限责任公司 | Automatic righting and anti-abrasion device for pumping rod |
| CN202348156U (en) * | 2011-12-15 | 2012-07-25 | 山东明珠石油装备制造有限公司 | Anti-attrition sleeve for old drill rod connector |
| CN102859250A (en) * | 2010-02-22 | 2013-01-02 | 埃克森美孚研究工程公司 | Coated sleeved oil and gas well production devices |
| CN202946038U (en) * | 2012-10-19 | 2013-05-22 | 天津开元达海洋石油工程发展有限公司 | Drill rod joint wear-resisting belt |
| CN204556203U (en) * | 2015-02-10 | 2015-08-12 | 中国石油大学(华东) | The axial vibration of a kind of oil drilling pipe post subtracts friction loss characteristic indoor experimental apparatus |
| CN204691693U (en) * | 2015-06-10 | 2015-10-07 | 绍兴文理学院 | A kind of vibration damping antifriction deep-well aluminium extruded sections drilling rod |
| CN105134101A (en) * | 2015-08-21 | 2015-12-09 | 西南石油大学 | Deepwater drilling riser and drill pipe anti-abrasion anti-attrition protection device |
| US20150354307A1 (en) * | 2014-06-05 | 2015-12-10 | Toby Scott Baudoin | Hydraulic Pipe String Vibrator For Reducing Well Bore Friction |
-
2015
- 2015-12-31 CN CN201511017900.8A patent/CN105422017A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB520088A (en) * | 1938-10-12 | 1940-04-15 | Eidco Inc | Improvements in or relating to rock drilling equipment |
| US4428441A (en) * | 1979-04-04 | 1984-01-31 | Mobil Oil Corporation | Method and apparatus for reducing the differential pressure sticking tendency of a drill string |
| CN1232904A (en) * | 1998-03-19 | 1999-10-27 | 株式会社地盘试验所 | Mechanical ground anchor |
| WO2005111368A1 (en) * | 2004-05-15 | 2005-11-24 | Cromar Limited | Improvement in or relating to roller subs |
| CN200964801Y (en) * | 2006-04-12 | 2007-10-24 | 胡红梅 | Eccentric wear prevention antiseptic joint |
| CN201306130Y (en) * | 2008-09-24 | 2009-09-09 | 东营市兆鑫工贸有限责任公司 | Automatic righting and anti-abrasion device for pumping rod |
| CN102859250A (en) * | 2010-02-22 | 2013-01-02 | 埃克森美孚研究工程公司 | Coated sleeved oil and gas well production devices |
| CN202348156U (en) * | 2011-12-15 | 2012-07-25 | 山东明珠石油装备制造有限公司 | Anti-attrition sleeve for old drill rod connector |
| CN202946038U (en) * | 2012-10-19 | 2013-05-22 | 天津开元达海洋石油工程发展有限公司 | Drill rod joint wear-resisting belt |
| US20150354307A1 (en) * | 2014-06-05 | 2015-12-10 | Toby Scott Baudoin | Hydraulic Pipe String Vibrator For Reducing Well Bore Friction |
| CN204556203U (en) * | 2015-02-10 | 2015-08-12 | 中国石油大学(华东) | The axial vibration of a kind of oil drilling pipe post subtracts friction loss characteristic indoor experimental apparatus |
| CN204691693U (en) * | 2015-06-10 | 2015-10-07 | 绍兴文理学院 | A kind of vibration damping antifriction deep-well aluminium extruded sections drilling rod |
| CN105134101A (en) * | 2015-08-21 | 2015-12-09 | 西南石油大学 | Deepwater drilling riser and drill pipe anti-abrasion anti-attrition protection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102704876B (en) | Method and tool for putting well completion pipe down by utilizing drill rod | |
| EP3194703B1 (en) | Fatigue resistant thread profile with combined curve rounding | |
| US20140183862A1 (en) | Threaded connector for larger diameter tubular members | |
| GB2537244A (en) | Rotary steerable drilling system | |
| PH12020551107A1 (en) | Passive rotating jointed tubular injector | |
| CN103352672A (en) | Turbine vibration drag reduction device for penetrating cable during coiled tubing well drilling | |
| US20180266189A1 (en) | Reduced drag casing connection | |
| MX2014012460A (en) | Wellbore completion system with reaming tool. | |
| WO2014115023A3 (en) | Shale drill pipe | |
| CN105422017A (en) | Drill rod joint with resistance reduction and wear reduction functions | |
| CN205778593U (en) | A kind of anti-galling drilling tool thread joint | |
| CN204729023U (en) | A kind of large hydrophthalmia high resistance turns round joint of petroleum drill rod | |
| CN105604484A (en) | Drag-reducing and torque-reducing device | |
| CN203808923U (en) | Suspension releasing packer for oil-gas water well | |
| CN203420644U (en) | Drilling machine drill pipe fixing device | |
| CN201144647Y (en) | Fast joint of plug-in type auger stem | |
| GB2518068A (en) | A vibratory drilling system and tool for use in downhole drilling operations and method for manufacturing same | |
| CN203188922U (en) | Hermetic seal buckle profile | |
| CN207420516U (en) | A kind of preventing oil pipe split junk mill | |
| CN203175411U (en) | External upset welding-line-less drill rod | |
| CN203978306U (en) | A kind of Antitwisting release proof hollow sucker rod post | |
| CN203796187U (en) | DSHT double-shouldered high torque drill pipe connector | |
| CN203308395U (en) | High-strength oil casing reducing screwed joint structure | |
| CN201818290U (en) | Anti-friction anti-drag universal shaft | |
| CN204225796U (en) | With brill except landwaste antifriction vibration drilling rod |
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 |
Application publication date: 20160323 |
|
| RJ01 | Rejection of invention patent application after publication |