CN107060658A - A kind of double nut locking drilling rod connection method and device - Google Patents
A kind of double nut locking drilling rod connection method and device Download PDFInfo
- Publication number
- CN107060658A CN107060658A CN201710224427.3A CN201710224427A CN107060658A CN 107060658 A CN107060658 A CN 107060658A CN 201710224427 A CN201710224427 A CN 201710224427A CN 107060658 A CN107060658 A CN 107060658A
- Authority
- CN
- China
- Prior art keywords
- drilling rod
- screw thread
- nut
- rod body
- layer 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 60
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000005516 engineering process Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002787 reinforcement Effects 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
- 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
- E21B17/0423—Threaded with plural threaded sections, e.g. with two-step threads
-
- 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
- E21B17/043—Threaded with locking means
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 discloses a kind of locking drilling rod connection method of double nut and device, it mainly includes：Drilling rod body, shoulder block, external big nut, anti-return nut, outer layer screw thread, internal layer screw thread, built-in small magnet.The drilling rod body end stated sets outer layer screw thread, internal layer screw thread.When connecting two drilling rods, first, by anti-return nut and external big nut successively from drilling rod body one end derotation of shoulder block is not provided with to drilling rod body near middle, the drilling rod body of left and right two is connected by internal layer screw thread again, when internal layer screw thread will be screwed, built-in small magnet produces attraction, make connection closer, then external big nut is just being screwed at shoulder block and stopped, anti-return nut dextrorotation is then compressed into external big nut, is realizing that double nut is locked.
Description
Technical field
The present invention relates to drilling rod reinforcement technique field, drilling rod connection method and dress are locked in particular to a kind of double nut
Put.
Background technology
In drilling process, at any position, failure can all cause serious consequence to drilling rod, or even scrap well.China is each
Drilling rod accident about five or six hundred occurs every year for oil field, and economic loss is huge, and the drilling rod of annual import all size will consume number
Hundred million yuans of foreign exchange.It is increasing from now on to bore deep-well, ultradeep well, the peace of drilling rod with the continuous exhaustion of shallow-layer resource
Full reliability just turns into a very distinct issues.Drilling rod failure is normally behaved as at body fracture and thorn leakage, drill rod thread
Failure etc..Therefore the joint of drilling rod is studied, Correct Analysis drill rod breaking reason is adopted an effective measure, improves drilling rod matter
Amount, reduces boring accidents rate, ensures normal drilling, and tool is of great significance.Experimental study shows, is oriented to, directional drill rod
By reversed bending stress, fatigue fracture is the main failure forms of drilling rod, and this failure occurs mainly in drilling rod public access
Head root or pin end thread root.
The content of the invention
In order to solve the above problems, the invention provides a kind of locking drilling rod connection method of double nut and device, to solve
The relevant issues of drill rod breaking.
The technical solution adopted in the present invention is：A kind of double nut locking drilling rod connection method and device, it mainly includes：
Drilling rod body, shoulder block, external big nut, anti-return nut, outer layer screw thread, internal layer screw thread, built-in small magnet.The drilling rod body
Both ends are provided with outer layer screw thread, internal layer screw thread.The internal layer screw thread of drilling rod body one end is external screw thread, the internal layer spiral shell of the other end
Line is internal thread, and outer layer screw thread is external screw thread.It is that the end of the drilling rod body of internal thread is provided with shoulder block in internal layer screw thread.When
When connecting two drilling rods, first, by anti-return nut and external big nut successively from be not provided with drilling rod body one end derotation of shoulder block to
Drilling rod body near middle, then connected the drilling rod body of left and right two by internal layer screw thread, it is interior when internal layer screw thread will be screwed
Put small magnet and produce attraction, make connection closer, then external big nut is just being screwed at shoulder block and stopped, then by anti-return nut
Dextrorotation compresses external big nut, realizes that double nut is locked；Internal thread and the outer layer thread rotary orientation is opposite.
Preferably, described anti-return nut is the enlarged version of traditional anti-return nut.
Preferably, described external big nut is the enlarged version of conventional nut.
Preferably, described built-in small magnet is permanent magnet, and left and right two, drilling rod body same position has placement.
The beneficial effects of the invention are as follows：
1. device requires relatively low, raw material are easier to extract, easy to use.
2. the nesting of multilayer screw thread makes drilling rod connection closer.
3. different rotation direction screw threads make drilling rod closely connect.
Brief description of the drawings
Fig. 1 is drilling rod connection diagram.
Fig. 2 is the structural representation at drilling rod body two ends.
Brief description of the drawings：1- shoulder blocks, 2- outer layer screw threads, 3- internal layer screw threads, small magnet built in 4-, the external big nuts of 5-, 6- stops
Withdrawing nut.
Embodiment
Below in conjunction with the accompanying drawings, further technology explanation is made to technical scheme：
A kind of double nut locking drilling rod connection method and device, it mainly includes：Drilling rod body, shoulder block, outer layer screw thread is interior
Layer screw thread, built-in small magnet, external big nut, anti-return nut；It is characterized in that：The both ends of the drilling rod body are provided with
Outer layer screw thread, internal layer screw thread；The internal layer screw thread of drilling rod body one end is external screw thread, and the internal layer screw thread of the other end is internal thread, outside
Layer screw thread is external screw thread.Internal thread and the outer layer thread rotary orientation is opposite.It is the drilling rod body of internal thread in internal layer screw thread
End is provided with shoulder block.Described anti-return nut is the enlarged version of traditional anti-return nut.Described external big nut is traditional spiral shell
Female enlarged version.Described built-in small magnet is permanent magnet, has placement at drilling rod body two ends.It is first when connecting two drilling rods
First, it is anti-return nut and external big nut is attached to drilling rod body middle part from the drilling rod body one end derotation for being not provided with shoulder block successively
Closely, then by internal layer screw thread the drilling rod body of left and right two is connected, when internal layer screw thread will be screwed, built-in small magnet produces suction
Draw, make connection closer, then external big nut is just being screwed at shoulder block and stopped, then compressing anti-return nut dextrorotation external big
Nut, realizes that double nut is locked.
Claims (4)
1. a kind of double nut locking drilling rod connection method and device, it mainly includes：Drilling rod body, shoulder block, outer layer screw thread, internal layer
Screw thread, built-in small magnet, external big nut, anti-return nut；It is characterized in that：The both ends of the drilling rod body are provided with outer
Layer screw thread, internal layer screw thread；The internal layer screw thread of drilling rod body one end is external screw thread, and the internal layer screw thread of the other end is internal thread, outer layer
Screw thread is external screw thread；It is that the end of the drilling rod body of internal thread is provided with shoulder block in internal layer screw thread；It is first when connecting two drilling rods
First, it is anti-return nut and external big nut is attached to drilling rod body middle part from the drilling rod body one end derotation for being not provided with shoulder block successively
Closely, then by internal layer screw thread the drilling rod body of left and right two is connected, when internal layer screw thread will be screwed, built-in small magnet produces suction
Draw, make connection closer, then external big nut is just being screwed at shoulder block and stopped, then compressing anti-return nut dextrorotation external big
Nut, realizes that double nut is locked；Internal thread and the outer layer thread rotary orientation is opposite.
2. a kind of double nut locking drilling rod connection method according to claim 1 and device, it is characterised in that described stops
Withdrawing nut is the enlarged version of traditional anti-return nut.
3. a kind of double nut locking drilling rod connection method according to claim 1 and device, it is characterised in that described is outer
Put the enlarged version that big nut is conventional nut.
4. a kind of double nut locking drilling rod connection method according to claim 1 and device, it is characterised in that described is interior
Small magnet is put for permanent magnet, has placement at drilling rod body two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710224427.3A CN107060658A (en) | 2017-04-07 | 2017-04-07 | A kind of double nut locking drilling rod connection method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710224427.3A CN107060658A (en) | 2017-04-07 | 2017-04-07 | A kind of double nut locking drilling rod connection method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107060658A true CN107060658A (en) | 2017-08-18 |
Family
ID=59602316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710224427.3A Pending CN107060658A (en) | 2017-04-07 | 2017-04-07 | A kind of double nut locking drilling rod connection method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107060658A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109623012A (en) * | 2019-01-31 | 2019-04-16 | 帅钢模架（苏州）有限公司 | Drilling and tapping integration tooling for mould bases deep hole |
| CN111691907A (en) * | 2020-07-31 | 2020-09-22 | 中建隧道建设有限公司 | Anchor rod for tunnel support |
| CN111706267A (en) * | 2020-06-28 | 2020-09-25 | 郭锦端 | Eccentric wear prevention underground engineering oil pipe |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1526367A (en) * | 1923-08-16 | 1925-02-17 | Parker Willis Earl | Locking joint |
| US1762057A (en) * | 1929-06-29 | 1930-06-03 | George C Gates | Coupling for drill rods |
| DE3203595A1 (en) * | 1982-02-03 | 1983-08-11 | Rolf 7000 Stuttgart Deimold | Method for producing screw connections in natural-gas and crude-oil pipelines, as well as a pipe which is produced in order to use the method, and a pipeline produced therefrom |
| GB2132727A (en) * | 1982-12-30 | 1984-07-11 | Mobil Oil Corp | Pipe joint locking device |
| US4512596A (en) * | 1982-04-19 | 1985-04-23 | Alsthom-Atlantique | Anti-unscrewing devices |
| AU2010258055A1 (en) * | 2009-06-12 | 2012-01-19 | Atlas Copco Canada Inc. | Drill rod locking assembly |
| CN202348139U (en) * | 2011-11-16 | 2012-07-25 | 山东宝世达石油装备制造有限公司 | Drilling pipe adapter structure used for petroleum drilling |
-
2017
- 2017-04-07 CN CN201710224427.3A patent/CN107060658A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1526367A (en) * | 1923-08-16 | 1925-02-17 | Parker Willis Earl | Locking joint |
| US1762057A (en) * | 1929-06-29 | 1930-06-03 | George C Gates | Coupling for drill rods |
| DE3203595A1 (en) * | 1982-02-03 | 1983-08-11 | Rolf 7000 Stuttgart Deimold | Method for producing screw connections in natural-gas and crude-oil pipelines, as well as a pipe which is produced in order to use the method, and a pipeline produced therefrom |
| US4512596A (en) * | 1982-04-19 | 1985-04-23 | Alsthom-Atlantique | Anti-unscrewing devices |
| GB2132727A (en) * | 1982-12-30 | 1984-07-11 | Mobil Oil Corp | Pipe joint locking device |
| AU2010258055A1 (en) * | 2009-06-12 | 2012-01-19 | Atlas Copco Canada Inc. | Drill rod locking assembly |
| CN202348139U (en) * | 2011-11-16 | 2012-07-25 | 山东宝世达石油装备制造有限公司 | Drilling pipe adapter structure used for petroleum drilling |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109623012A (en) * | 2019-01-31 | 2019-04-16 | 帅钢模架（苏州）有限公司 | Drilling and tapping integration tooling for mould bases deep hole |
| CN111706267A (en) * | 2020-06-28 | 2020-09-25 | 郭锦端 | Eccentric wear prevention underground engineering oil pipe |
| CN111691907A (en) * | 2020-07-31 | 2020-09-22 | 中建隧道建设有限公司 | Anchor rod for tunnel support |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170818 |