CN107816326A - A kind of double-walled counterflush drilling instrument - Google Patents
A kind of double-walled counterflush drilling instrument Download PDFInfo
- Publication number
- CN107816326A CN107816326A CN201710995067.7A CN201710995067A CN107816326A CN 107816326 A CN107816326 A CN 107816326A CN 201710995067 A CN201710995067 A CN 201710995067A CN 107816326 A CN107816326 A CN 107816326A
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- China
- Prior art keywords
- inner chamber
- outer rotor
- double
- rotor
- cylindrical
- 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.)
- Granted
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 43
- 239000012530 fluid Substances 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract description 7
- 239000011435 rock Substances 0.000 abstract description 6
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005070 sampling Methods 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
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/12—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using drilling pipes with plural fluid passages, e.g. closed circulation systems
-
- 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
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
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 the double-walled counterflush drilling instrument that a kind of oil/gas drilling engineering field uses.It meets the needs of double-wall drill pipe counterflush drilling technology, while improves shaft bottom landwaste cleaning efficiency.Its technical characteristic is：Outer cylinder body upper end and the screwed connection of top connection lower end, outer cylinder body lower end and the screwed connection of connector upper end；Thrust bearing is arranged on the middle bench face of connector inner chamber；The cylindrical middle part of outer rotor is provided with left-turn spiral leaf, is provided with right hand helix leaf on internal rotor is cylindrical；Outer rotor inserts outer barrel intracoelomic cavity；Internal rotor inserts outer rotor inner chamber, internal rotor lower end male thread and the stepped hole bottom hole box thread screwed connection of flow jet flow drill inner chamber, outer rotor lower end male thread and the box thread screwed connection of flow jet flow drill inner chamber stepped hole aperture.The present invention realizes that drilling fluid and landwaste are directly entered outer rotor inner chamber from the direct return port of flow jet flow drill, and then enters the inner tube of double-wall drill pipe, and broken rock moment of torsion is big, and landwaste cleaning in shaft bottom is timely, the clear rock efficiency high in shaft bottom.
Description
Technical field
The present invention relates to the double-walled counterflush drilling instrument that a kind of oil/gas drilling engineering field uses.
Background technology
In oil/gas drilling engineering field, double-wall drill pipe counterflush drilling（Reel Well drilling wells）Technology is as a kind of new
Drilling technology, based on double-wall drill pipe, drilling fluid is pumped into from double-wall drill pipe annular space in well and bottom-hole cleaning, from inner drill rods
Cutting carring returns to ground, so as to realize drilling fluid closed loop cycle.Double-wall drill pipe is (to claim inner tube and outer by inside and outside two layers of drilling rod
Pipe) formed；Inner and outer pipe asks composition annular space, when being the defeated rock drilling of waterpower, sampling core drilling, is pumped to bottom hole and rinses Jie
The passage of matter；Inner tube centre bore is that discharge scouring media is fixed into an entirety, with the screw thread of outer tube between every double-wall drill pipe
It is attached, ensures to transmit moment of torsion and pressure, and inserting mode is used more between inner tube, the general work for only playing circulation scouring media
With splicing position will set sealing device.
Double-wall drill pipe counterflush drilling technology is in managed pressure drilling, extended reach well drilling, deepwater drilling and has pressure to choose
There is great advantage in terms of the stratum drilling of war property, mainly have the characteristics that：（1）Drilling fluid reacting cycle in tube-in-tube,
Realize without marine riser drilling well；（2）Double-wall drill pipe serves as electric power and data transmission channel；（3）Realize overall process controlled pressure drilling.And mesh
In preceding double-wall drill pipe counterflush drilling technology application process, drilling fluid enters from the flow transition joint on BHA top
Enter the inner tube of double-wall drill pipe, one side drilling fluid is big to the pressure difference of top flow transition joint from drill bit, and one side landwaste carries
Efficiency is low, and shaft bottom landwaste is difficult to be eliminated in time.Based on above-mentioned technical background, the present invention is special to provide a kind of double-walled counterflush drilling
Instrument.
The content of the invention
The purpose of the present invention is：In order to meet the needs of double-wall drill pipe counterflush drilling technology, while improve shaft bottom landwaste
Cleaning efficiency, spy provide a kind of double-walled counterflush drilling instrument.
In order to achieve the above object, the present invention uses following technical scheme：A kind of double-walled counterflush drilling instrument, is by upper
Joint, outer cylinder body, outer rotor, internal rotor, connector, thrust bearing and flow jet flow drill are formed；Its architectural feature is：In top connection
The inner cylinder sealing grafting of end and the outer barrel screwed connection of double-wall drill pipe, outer rotor upper end and double-wall drill pipe；Outer cylinder body upper end and upper
The screwed connection of joint lower end, outer cylinder body lower end and the screwed connection of connector upper end；Outer barrel intracoelomic cavity top sets a raised platform of circle
Rank；One circle step surface is set in the middle part of connector inner chamber, and connector top is circumferentially uniformly arranged four flowing hole b；Thrust bearing is pacified
On the middle bench face of connector inner chamber；The cylindrical top of outer rotor sets a circle raised step, is uniformly arranged in raised step
12 flowing hole a, the cylindrical middle part of outer rotor are provided with left-turn spiral leaf, and the cylindrical lower end of outer rotor is arranged to male thread；Interior turn
Right hand helix leaf is provided with son is cylindrical, the cylindrical lower end of internal rotor is arranged to male thread；Flow jet flow drill inner chamber is arranged to stepped hole,
Stepped hole aperture is arranged to box thread, and stepped hole bottom hole is arranged to box thread, and flow jet flow drill is circumferentially uniformly arranged three jet orifices
Jet bit upper end face and lower surface are connected, it is cylindrical and interior that flow jet flow drill is circumferentially uniformly arranged three return port connection flow jet flow drills
In the middle part of chamber stepped hole；Outer rotor inserts outer barrel intracoelomic cavity, and the cylindrical upper lobes step of outer rotor is arranged on outer barrel intracoelomic cavity top
In raised step；Internal rotor inserts outer rotor inner chamber, internal rotor lower end male thread and flow jet flow drill inner chamber stepped hole bottom hole mother's spiral shell
Line screwed connection, outer rotor lower end male thread and the box thread screwed connection of flow jet flow drill inner chamber stepped hole aperture.
The beneficial effects of the invention are as follows：（1）The present invention realizes that drilling fluid and landwaste are straight from the direct return port of flow jet flow drill
Tap into outer rotor inner chamber, and then enter the inner tube of double-wall drill pipe so that landwaste cleaning in shaft bottom is timely, the clear rock efficiency high in shaft bottom；
（2）The flow jet flow drill of the present invention is driven jointly by outer rotor and internal rotor, and broken rock moment of torsion is big；（3）The present invention realizes double-wall drill pipe
The well dynamic driving of counterflush drilling, drive component is without rubber structure, suitable for Temperature Deep hyperbaric environment.
Brief description of the drawings
Fig. 1 is a kind of structural representation of double-walled counterflush drilling instrument of the present invention.
Fig. 2 is Figure 1A-A cross-sectional views.
Fig. 3 is the three dimensional structure diagram of outer rotor.
Fig. 4 is the three dimensional structure diagram of internal rotor.
In figure：1. top connection, 2. outer cylinder bodies, 3. outer rotors, 4. internal rotors, 5. connectors, 6. thrust bearings, 7. jets bore
Head, 31. flowing hole a, 32. left-turn spiral leaves, 41. right hand helix leaves, 51. flowing hole b, 71. jet orifices, 72. return ports.
Embodiment
It is by top connection 1, outer cylinder body 2, outer rotor 3, interior as shown in figure 1, a kind of double-walled counterflush drilling instrument of the present invention
Rotor 4, connector 5, thrust bearing 6 and flow jet flow drill 7 are formed；Its architectural feature is：The upper end of top connection 1 and double-wall drill pipe it is outer
The inner cylinder sealing grafting of cylinder screwed connection, the upper end of outer rotor 3 and double-wall drill pipe；The upper end of outer cylinder body 2 and the lower end screw thread of top connection 1 connect
Connect, the lower end of outer cylinder body 2 and the upper end screwed connection of connector 5；The inner chamber top of outer cylinder body 2 sets a circle raised step；In connector 5
One circle step surface is set in the middle part of chamber, and the top of connector 5 is circumferentially uniformly arranged four flowing hole b51；Thrust bearing 6 is arranged on connection
On first 5 inner chamber middle bench face；The inner chamber of flow jet flow drill 7 is arranged to stepped hole, and stepped hole aperture is arranged to box thread, stepped hole hole
Bottom is arranged to box thread, as shown in Fig. 2 flow jet flow drill 7 is circumferential to be uniformly arranged the three connection flow jet flow drill 7 of jet orifices 71 upper surfaces
And lower surface, flow jet flow drill 7 is circumferential be uniformly arranged three return ports 72 connect that flow jet flow drills 7 are cylindrical and inner chamber stepped hole in the middle part of；
Outer rotor 3 inserts the inner chamber of outer cylinder body 2, and the cylindrical upper lobes step of outer rotor 3 is arranged on the inner chamber upper lobes step of outer cylinder body 2
On；Internal rotor 4 inserts the inner chamber of outer rotor 3, the lower end male thread of internal rotor 4 and the inner chamber stepped hole bottom hole box thread silk of flow jet flow drill 7
Button connection, the lower end male thread of outer rotor 3 and the inner chamber stepped hole aperture box thread screwed connection of flow jet flow drill 7.
As shown in figure 3,3 cylindrical top of outer rotor sets a circle raised step, 12 mistakes are uniformly arranged in raised step
Discharge orifice a31,3 cylindrical middle part of outer rotor are provided with left-turn spiral leaf 32, and 3 cylindrical lower end of outer rotor is arranged to male thread.
As shown in figure 4, being provided with right hand helix leaf 41 on internal rotor 4 is cylindrical, 4 cylindrical lower end of internal rotor is arranged to public spiral shell
Line.
A kind of operation principle of double-walled counterflush drilling instrument of the present invention is：To shaft bottom, turn on pump circulates to be bored the tripping in present invention
Well liquid, the annular space that drilling fluid enters between outer rotor 3 and outer cylinder body 2 from the annular space between double-wall drill pipe outer barrel and inner cylinder, drilling well
Liquid drives outer rotor 3 to rotate forward in the presence of left-turn spiral leaf 32, and jet orifice 71 of the drilling fluid through flow jet flow drill 7 is taken into well
Enter the annular space of outer rotor 3 and internal rotor 4 through return port 72 with landwaste, drilling fluid is in the presence of right hand helix leaf 41 in driving
Rotor 4 rotates forward.Flow jet flow drill 7 rotates forward broken rock under the collective effect of outer rotor 3 and internal rotor 4.
Claims (2)
1. a kind of double-walled counterflush drilling instrument, is by top connection（1）, outer cylinder body（2）, outer rotor（3）, internal rotor（4）, connection
Head（5）, thrust bearing（6）And flow jet flow drill（7）Form；It is characterized in that：Top connection（1）Upper end and the outer barrel silk of double-wall drill pipe
Button connection, outer rotor（3）The inner cylinder of upper end and double-wall drill pipe seals grafting；Outer cylinder body（2）Upper end and top connection（1）Lower end screw thread
Connection, outer cylinder body（2）Lower end and connector（5）Upper end screwed connection；Outer cylinder body（2）Inner chamber top sets a circle raised step；
Connector（5）One circle step surface, connector are set in the middle part of inner chamber（5）Top is circumferentially uniformly arranged four flowing hole b（51）；Thrust
Bearing（6）Installed in connector（5）On the middle bench face of inner chamber；Outer rotor（3）Cylindrical top sets a circle raised step, raised
12 flowing hole a are uniformly arranged on step（31）, outer rotor（3）Cylindrical middle part is provided with left-turn spiral leaf（32）, outer rotor
（3）Cylindrical lower end is arranged to male thread；Internal rotor（4）Right hand helix leaf is provided with cylindrical（41）, internal rotor（4）Cylindrical lower end
It is arranged to male thread；Outer rotor（3）Insert outer cylinder body（2）Inner chamber, outer rotor（3）Cylindrical upper lobes step is arranged on outer cylinder body
（2）On the upper lobes step of inner chamber；Internal rotor（4）Insert outer rotor（3）Inner chamber, internal rotor（4）Lower end male thread and jet bore
Head（7）Inner chamber stepped hole bottom hole box thread screwed connection, outer rotor（3）Lower end male thread and flow jet flow drill（7）Inner chamber stepped hole
Aperture box thread screwed connection.
2. double-walled counterflush drilling instrument according to claim 1, it is characterized in that：The flow jet flow drill（7）Inner chamber is set
For stepped hole, stepped hole aperture is arranged to box thread, and stepped hole bottom hole is arranged to box thread, flow jet flow drill（7）It is circumferential uniformly to set
Put three jet orifices（71）Connect flow jet flow drill（7）Upper surface and lower surface, flow jet flow drill（7）Circumferentially it is uniformly arranged three backflows
Hole（72）Connect flow jet flow drill（7）In the middle part of cylindrical and inner chamber stepped hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710995067.7A CN107816326B (en) | 2017-10-23 | 2017-10-23 | Double-wall reverse circulation drilling tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710995067.7A CN107816326B (en) | 2017-10-23 | 2017-10-23 | Double-wall reverse circulation drilling tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107816326A true CN107816326A (en) | 2018-03-20 |
| CN107816326B CN107816326B (en) | 2019-12-20 |
Family
ID=61608396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710995067.7A Active CN107816326B (en) | 2017-10-23 | 2017-10-23 | Double-wall reverse circulation drilling tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107816326B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425651A (en) * | 2018-05-21 | 2018-08-21 | 广州海洋地质调查局 | It is a kind of for deep water without marine riser gas lift reverse circulation drilling well system and method |
| CN115234186A (en) * | 2022-08-12 | 2022-10-25 | 中国铁建重工集团股份有限公司 | Combined core drilling machine and working method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3583502A (en) * | 1968-07-29 | 1971-06-08 | Homer I Henderson | Axial flow turbine drill for earth boring |
| CN201582135U (en) * | 2009-12-29 | 2010-09-15 | 中国石油集团西部钻探工程有限公司吐哈钻井工艺研究院 | Centralizing pumping screw turbine pump for underground annuluses |
| CN201818235U (en) * | 2010-09-17 | 2011-05-04 | 盐城市大冈石油工具厂有限责任公司 | Reverse rotary screw drilling tool |
| CN103982134A (en) * | 2014-05-28 | 2014-08-13 | 西南石油大学 | Reverse circulation drilling tool |
| CN104120971A (en) * | 2014-06-27 | 2014-10-29 | 西南石油大学 | Torsion generator for providing one-way impact |
| CN105239935A (en) * | 2015-09-18 | 2016-01-13 | 西南石油大学 | Spiral reverse circulation drilling tool for coal seam drilling |
| CN105264162A (en) * | 2013-05-23 | 2016-01-20 | 哈里伯顿能源服务公司 | Downhole drilling motor and method of use |
-
2017
- 2017-10-23 CN CN201710995067.7A patent/CN107816326B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3583502A (en) * | 1968-07-29 | 1971-06-08 | Homer I Henderson | Axial flow turbine drill for earth boring |
| CN201582135U (en) * | 2009-12-29 | 2010-09-15 | 中国石油集团西部钻探工程有限公司吐哈钻井工艺研究院 | Centralizing pumping screw turbine pump for underground annuluses |
| CN201818235U (en) * | 2010-09-17 | 2011-05-04 | 盐城市大冈石油工具厂有限责任公司 | Reverse rotary screw drilling tool |
| CN105264162A (en) * | 2013-05-23 | 2016-01-20 | 哈里伯顿能源服务公司 | Downhole drilling motor and method of use |
| CN103982134A (en) * | 2014-05-28 | 2014-08-13 | 西南石油大学 | Reverse circulation drilling tool |
| CN104120971A (en) * | 2014-06-27 | 2014-10-29 | 西南石油大学 | Torsion generator for providing one-way impact |
| CN105239935A (en) * | 2015-09-18 | 2016-01-13 | 西南石油大学 | Spiral reverse circulation drilling tool for coal seam drilling |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425651A (en) * | 2018-05-21 | 2018-08-21 | 广州海洋地质调查局 | It is a kind of for deep water without marine riser gas lift reverse circulation drilling well system and method |
| CN115234186A (en) * | 2022-08-12 | 2022-10-25 | 中国铁建重工集团股份有限公司 | Combined core drilling machine and working method thereof |
| CN115234186B (en) * | 2022-08-12 | 2024-02-27 | 中国铁建重工集团股份有限公司 | Combined coring drilling machine and working method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107816326B (en) | 2019-12-20 |
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| 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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201229 Address after: 102200 423, 4 / F, block a, Xinhua future city building, 175 Litang Road, Changping District, Beijing Patentee after: Li Qiannan Address before: 610039, No. 999, Jin Zhou road, Jinniu District, Sichuan, Chengdu Patentee before: XIHUA University |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210128 Address after: 062450 Yingzhou Economic Development Zone, Hejian City, Cangzhou City, Hebei Province Patentee after: CANGZHOU GREAT DRILL Co.,Ltd. Address before: 102200 423, 4 / F, block a, Xinhua future city building, 175 Litang Road, Changping District, Beijing Patentee before: Li Qiannan |
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| TR01 | Transfer of patent right |