CN107747476A - Anti-shake drilling rod with antifriction band - Google Patents
Anti-shake drilling rod with antifriction band Download PDFInfo
- Publication number
- CN107747476A CN107747476A CN201711174826.XA CN201711174826A CN107747476A CN 107747476 A CN107747476 A CN 107747476A CN 201711174826 A CN201711174826 A CN 201711174826A CN 107747476 A CN107747476 A CN 107747476A
- Authority
- CN
- China
- Prior art keywords
- drilling rod
- rod body
- drilling
- small end
- thread
- 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 DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1042—Elastomer protector or centering means
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1085—Wear protectors; Blast joints; Hard facing
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B17/22—Rods or pipes with helical structure
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 present invention relates to a kind of anti-shake drilling rod with antifriction band, it in the engagement place at pin thread small end and the big end of box by adding a secondary shoulder, secondary shoulder, which then just has in certain auxiliary, anchors bit function, so as to ensure the accurate realization of main circular bead surface and thread segment interference fit, in addition, secondary shoulder can also bear fractional load in working condition, and can also improve the torsional strength of drilling rod, ensure that the security of drilling rod；The pin thread small end of drilling rod body is bucking ladder simultaneously, and the bucking ladder forms the strengthening segment of pin thread small end, can improve the bulk strength of drilling rod.A plurality of wear-resistant strip has been added at the two ends of drilling rod simultaneously, can prevent from being worn at tool joint, so that can normally connect between drilling rod, drilling rod is provided with helical groove, reduces the resistance that drilling rod is subject to.The outside of drilling rod adds spring centralizer simultaneously, and spring centralizer is used to position on drilling rod, reduces rocking for drilling rod, improve the drilling resultses of drilling rod.
Description
Technical field
The present invention relates to a kind of anti-shake drilling rod with antifriction band, 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 passes through tool joint
Connect, in During regular rotation, drilling rod will bear the effect of external and internal pressure, axial force, moment of flexure and moment of torsion simultaneously.
But common drill rod hardness is not high, after long-term use, failure accidents can frequently occur for tool joint, make its into
For the principal mode of drilling rod failure.For conventional drilling rod in probing, shaking amplitude is larger, have impact on the drilling resultses of drilling rod.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency, there is provided a kind of not easy to wear, hardness is high, and security is good, rocks width
Spend the small anti-shake drilling rod with antifriction band.
The object of the present invention is achieved like this：
A kind of anti-shake drilling rod with antifriction band, it includes drilling rod body, and the periphery of the pin thread small end of the drilling rod body is provided with
External screw thread, the inwall at the big end of box of drilling rod body are provided with internal thread, and the external screw thread of adjacent two drilling rods engages with internal thread,
So that two drilling rods connect, and drilling rod body opens up platform in the upper and lower ends of externally threaded upper and lower ends and internal thread
Terrace, the wherein step of external screw thread lower end and internal thread lower end are main shoulder, and the step of external screw thread upper end and internal thread upper end is
Secondary shoulder, while the pin thread small end of drilling rod body is bucking ladder, the bucking ladder forms the strengthening segment of pin thread small end, the drilling rod
Body both ends are provided with a plurality of antifriction band, while some helical grooves are further opened with drilling rod body, the outside of the drilling rod body
Multiple spring centralizers are cased with, the spring centralizer is used to position drilling rod body.
Anti-shake drilling rod of the invention with antifriction band has advantages below：
The anti-shake drilling rod with antifriction band of the invention by adding a secondary shoulder in the engagement place at pin thread small end and the big end of box,
Secondary shoulder forms dual stage shoulder structure with main shoulder, and main circular bead surface and thread segment produce certain interference fit, and secondary shoulder is then
Just have in certain auxiliary and anchor bit function, so as to ensure the accurate realization of main circular bead surface and thread segment interference fit, this
Outside, secondary shoulder can also bear fractional load in working condition, play certain overload protective function, and can also improve drilling rod
Torsional strength, it ensure that the security of drilling rod；
The pin thread small end of drilling rod body is bucking ladder simultaneously, and the bucking ladder forms the strengthening segment of pin thread small end, can improve brill
The bulk strength of bar；
A plurality of wear-resistant strip has been added at the two ends of drilling rod simultaneously, can prevent from being worn at tool joint, while strengthen brill
Intensity at knock-off joint, so that can normally be connected between drilling rod, its security is ensure that, it is recessed that drilling rod is provided with spiral
Groove, the mud that can be allowed in drilling well are up conveyed by groove, reduce the resistance that drilling rod is subject to.
The outside of drilling rod adds spring centralizer simultaneously, and spring centralizer is used to position on drilling rod, reduces the rolling of drilling rod
It is dynamic, improve the drilling resultses of drilling rod.
Brief description of the drawings
Fig. 1 is the structural representation of the anti-shake drilling rod of the invention with antifriction band.
Fig. 2 is the connection diagram of adjacent two drilling rods.
Fig. 3 is the external screw thread of drilling rod body in Fig. 2, the enlarged drawing at internal thread.
Fig. 4 is the fiting relation figure of drilling rod and spring centralizer in the anti-shake drilling rod of the invention with antifriction band.
In figure：Drilling rod body 1, external screw thread 2, internal thread 3, main shoulder 4, secondary shoulder 5, bucking ladder 6, helical groove 7, antifriction
Band 8, spring centralizer 9.
Embodiment
Referring to Fig. 1 to Fig. 4, the present invention relates to a kind of anti-shake drilling rod with antifriction band, including drilling rod body 1, the drilling rod
The periphery of the pin thread small end of body 1 is provided with external screw thread 2, and the inwall at the big end of box of drilling rod body 1 is provided with internal thread 3, phase
The external screw thread 2 of adjacent two drilling rods engages with internal thread 3 so that two drilling rods connect, and drilling rod body 1 is in external screw thread 2
Upper and lower ends and the upper and lower ends of internal thread 3 open up step surface, the wherein step of the lower end of external screw thread 2 and the lower end of internal thread 3
For main shoulder 4, the step of the upper end of external screw thread 2 and the upper end of internal thread 3 is secondary shoulder 5.
The main shoulder 4 forms dual stage shoulder structure with secondary shoulder 5, and main shoulder 4 and thread segment produce certain interference and matched somebody with somebody
Close, and secondary shoulder 5 then just have certain auxiliary on anchor bit function, so as to ensure that the interference of main shoulder 4 and thread segment is matched somebody with somebody
The accurate realization closed, in addition, secondary shoulder 5 can also bear fractional load in working condition, certain overload protective function is played, and
And the torsional strength of drilling rod can also be improved, it ensure that the security of drilling rod.
The pin thread small end of drilling rod body 1 be bucking ladder 6 simultaneously, the strengthening segment of the formation of the bucking ladder 6 pin thread small end, can be with
Improve the bulk strength of drilling rod.
The both ends of drilling rod body 1 are provided with a plurality of antifriction band 8, and the antifriction band 8 can prevent from being worn at tool joint, together
When strengthen intensity at tool joint so that can normally be connected between drilling rod, ensure that its security, while drilling rod
Some helical grooves 7 are further opened with body 1, the mud that the helical groove 7 can allow in drilling well is up defeated by the groove
Send, reduce the resistance that drilling rod is subject to.
The outside of the drilling rod body 1 is cased with multiple spring centralizers 9, and the spring centralizer 9 is used for drilling rod body 1
Positioning, prevents drilling rod from rocking.
Claims (1)
- A kind of 1. anti-shake drilling rod with antifriction band, it is characterised in that：It includes drilling rod body（1）, the drilling rod body（1）Public affairs The periphery of button small end is provided with external screw thread（2）, drilling rod body（1）The inwall at the big end of box be provided with internal thread（3）, adjacent two The external screw thread of root drilling rod（2）With internal thread（3）Engagement so that two drilling rods connect, and drilling rod body（1）In external screw thread （2）Upper and lower ends and internal thread（3）Upper and lower ends open up step surface, wherein external screw thread（2）Lower end and internal thread（3）Under The step at end is main shoulder（4）, external screw thread（2）Upper end and internal thread（3）The step of upper end is secondary shoulder（5）, while drilling rod sheet Body（1）Pin thread small end be bucking ladder（6）, the bucking ladder（6）Form the strengthening segment of pin thread small end, the drilling rod body（1） Both ends are provided with a plurality of antifriction band（8）, while drilling rod body（1）On be further opened with some helical grooves（7）, the drilling rod body （1）Outside be cased with multiple spring centralizers（9）, the spring centralizer（9）For by drilling rod body（1）Positioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711174826.XA CN107747476A (en) | 2017-11-22 | 2017-11-22 | Anti-shake drilling rod with antifriction band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711174826.XA CN107747476A (en) | 2017-11-22 | 2017-11-22 | Anti-shake drilling rod with antifriction band |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107747476A true CN107747476A (en) | 2018-03-02 |
Family
ID=61251650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711174826.XA Pending CN107747476A (en) | 2017-11-22 | 2017-11-22 | Anti-shake drilling rod with antifriction band |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107747476A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031673A (en) * | 2020-07-17 | 2020-12-04 | 中国地质科学院勘探技术研究所 | Quick-screwing-unscrewing drill rod with convenient-to-disassemble and assemble joint |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0196339A1 (en) * | 1985-03-07 | 1986-10-08 | Weatherford Oil Tool GmbH | Centralizer for casings and drill pipes |
| CN205532370U (en) * | 2016-05-04 | 2016-08-31 | 成都德勤精机科技有限公司 | Oil drill pipe's centralizer suitable for different diameters |
| CN205977124U (en) * | 2016-07-13 | 2017-02-22 | 江阴德玛斯特钻具有限公司 | Drilling rod suitable for big displacement well drilling of slim -hole |
| CN205977116U (en) * | 2016-07-13 | 2017-02-22 | 江阴德玛斯特钻具有限公司 | Take high rigidity drilling rod in antifriction area |
-
2017
- 2017-11-22 CN CN201711174826.XA patent/CN107747476A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0196339A1 (en) * | 1985-03-07 | 1986-10-08 | Weatherford Oil Tool GmbH | Centralizer for casings and drill pipes |
| CN205532370U (en) * | 2016-05-04 | 2016-08-31 | 成都德勤精机科技有限公司 | Oil drill pipe's centralizer suitable for different diameters |
| CN205977124U (en) * | 2016-07-13 | 2017-02-22 | 江阴德玛斯特钻具有限公司 | Drilling rod suitable for big displacement well drilling of slim -hole |
| CN205977116U (en) * | 2016-07-13 | 2017-02-22 | 江阴德玛斯特钻具有限公司 | Take high rigidity drilling rod in antifriction area |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031673A (en) * | 2020-07-17 | 2020-12-04 | 中国地质科学院勘探技术研究所 | Quick-screwing-unscrewing drill rod with convenient-to-disassemble and assemble joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180302 |
|
| RJ01 | Rejection of invention patent application after publication |