CN108049823A - High antitorque, anti-rock drilling rod - Google Patents
High antitorque, anti-rock drilling rod Download PDFInfo
- Publication number
- CN108049823A CN108049823A CN201711172922.0A CN201711172922A CN108049823A CN 108049823 A CN108049823 A CN 108049823A CN 201711172922 A CN201711172922 A CN 201711172922A CN 108049823 A CN108049823 A CN 108049823A
- Authority
- CN
- China
- Prior art keywords
- drilling rod
- thread
- drilling
- internal thread
- 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
- 238000005553 drilling Methods 0.000 title claims abstract description 71
- 239000011435 rock Substances 0.000 title claims abstract description 13
- 239000011324 bead Substances 0.000 abstract description 3
- 230000009993 protective function Effects 0.000 abstract description 3
- 230000009977 dual effect Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
-
- 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
-
- 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
- E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
- E21B17/1014—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well
- E21B17/1021—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well with articulated arms or arcuate springs
- E21B17/1028—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well with articulated arms or arcuate springs with arcuate springs only, e.g. baskets with outwardly bowed strips for cementing operations
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 high antitorque, anti-rock drilling rods, it includes drilling rod body, the periphery of the pin thread small end of the drilling rod body is provided with external screw thread, the inner wall of the female thread big end of drilling rod body is provided with internal thread, the external screw thread of adjacent two drilling rods is engaged with internal thread, so that two drilling rods connect, drilling rod body opens up step surface in the upper and lower ends of externally threaded upper and lower ends and internal thread, wherein the step of external screw thread lower end and internal thread lower end is main shoulder, and the step of external screw thread upper end and internal thread upper end is secondary shoulder.High antitorque, anti-rock drilling rod of the invention can ensure the accurate realization of main circular bead surface and thread segment interference fit; secondary shoulder can also bear fractional load in working condition; certain overload protective function is played, and the torsional strength of drilling rod can also be improved, ensure that the security of drilling rod.The outside of drilling rod adds spring centralizer simultaneously, and spring centralizer reduces rocking for drilling rod, improve the drilling results of drilling rod for drilling rod to be positioned.
Description
Technical field
The present invention relates to a kind of high antitorque, anti-rock drilling rods, 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
It connects, in During regular rotation, drilling rod will bear the effect of external and internal pressure, axial force, moment of flexure and torque simultaneously.
However common drilling rod torsional strength is not high, after long-time service, failure accidents can frequently occur for tool joint, make
It becomes the principal mode of drilling rod failure.Therefore current tool joint urgent need can transfer the torque of bigger, various to adapt to
Complicated working environment.For previous drilling rod in probing, shaking amplitude is larger, affects the drilling results of drilling rod.
The content of the invention
High the purpose of the present invention is to overcome the above shortcomings and to provide a kind of intensity, security is good, the small highly resistance of shaking amplitude
It turns round, the drilling rod of anti-rock.
The object of the present invention is achieved like this：
A kind of high antitorque, anti-rock drilling rod, 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 inner wall of the female thread big end of drilling rod body are provided with internal thread, and the external screw thread of adjacent two drilling rods is engaged 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, the outside of the drilling rod body are cased with multiple spring centralizers, and the spring centralizer is used to position drilling rod body.
High antitorque, anti-rock drilling rod of the invention has the following advantages：
High antitorque, anti-rock drilling rod of the invention is by adding a secondary platform in the engagement place of pin thread small end and female thread big end
Shoulder, secondary shoulder and main shoulder form dual stage shoulder structure, and main circular bead surface and thread segment generate certain interference fit, and secondary shoulder
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,
In addition, secondary shoulder can also bear fractional load in working condition, certain overload protective function is played, and drilling rod can also be improved
Torsional strength, ensure that the security of drilling rod.The outside of drilling rod adds spring centralizer simultaneously, and spring centralizer is used for will
Drilling rod positions, and reduces rocking for drilling rod, improves the drilling results of drilling rod.
Description of the drawings
Fig. 1 is the structure diagram of high antitorque, anti-rock the drilling rod of the present invention.
Fig. 2 is the fiting relation figure of drilling rod and spring centralizer in high antitorque, anti-rock the drilling rod of the present invention.
In figure：Drilling rod body 1, external screw thread 2, internal thread 3, main shoulder 4, secondary shoulder 5, spring centralizer 6.
Specific embodiment
Referring to Fig. 1 and Fig. 2, the present invention relates to a kind of high antitorque, anti-rock drilling rods, 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 inner wall of the female thread big end of drilling rod body 1 is provided with internal thread 3, phase
The external screw thread 2 of adjacent two drilling rods is engaged 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 the step of step surface, wherein 3 lower end of 2 lower end of external screw thread and internal thread
For main shoulder 4, the step of 3 upper end of 2 upper end of external screw thread and internal thread is secondary shoulder 5, and the outside of the drilling rod body 1 is cased with multiple
Spring centralizer 6, the spring centralizer 6 prevent drilling rod from rocking for drilling rod body 1 to be positioned.
The main shoulder 4 forms dual stage shoulder structure with secondary shoulder 5, and main shoulder 4 and thread segment generate certain interference and match somebody with somebody
It closes, and secondary shoulder 5 then just has in certain auxiliary and anchors bit function, so as to which the interference for ensureing 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, plays certain overload protective function, and
And the torsional strength of drilling rod can also be improved, it ensure that the security of drilling rod.
Claims (1)
1. a kind of high antitorque, anti-rock drilling rod, it is characterised in that：It includes drilling rod body（1）, the drilling rod body（1）'s
The periphery of pin thread small end is provided with external screw thread（2）, drilling rod body（1）The inner wall of female thread big end be provided with internal thread（3）, it is adjacent
The external screw thread of two drilling rods（2）With internal thread（3）Engagement so that two drilling rods connect, and drilling rod body（1）In outer spiral shell
Line（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）
The step of lower end is main shoulder（4）, external screw thread（2）Upper end and internal thread（3）The step of upper end is secondary shoulder（5）, the drilling rod
Body（1）Outside be cased with multiple spring centralizers（6）, the spring centralizer（6）For by drilling rod body（1）Positioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711172922.0A CN108049823A (en) | 2017-11-22 | 2017-11-22 | High antitorque, anti-rock drilling rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711172922.0A CN108049823A (en) | 2017-11-22 | 2017-11-22 | High antitorque, anti-rock drilling rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108049823A true CN108049823A (en) | 2018-05-18 |
Family
ID=62119031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711172922.0A Pending CN108049823A (en) | 2017-11-22 | 2017-11-22 | High antitorque, anti-rock drilling rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108049823A (en) |
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 |
| CN105804667A (en) * | 2016-05-10 | 2016-07-27 | 江阴德玛斯特钻具有限公司 | Oil drill rod with built-in oil 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 |
| CN106014281A (en) * | 2016-07-13 | 2016-10-12 | 江阴德玛斯特钻具有限公司 | Highly anti-torque drill rod |
-
2017
- 2017-11-22 CN CN201711172922.0A patent/CN108049823A/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 |
| CN105804667A (en) * | 2016-05-10 | 2016-07-27 | 江阴德玛斯特钻具有限公司 | Oil drill rod with built-in oil pipes |
| CN106014281A (en) * | 2016-07-13 | 2016-10-12 | 江阴德玛斯特钻具有限公司 | Highly anti-torque drill rod |
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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: 20180518 |
|
| RJ01 | Rejection of invention patent application after publication |