CN107939318A - Local under balance pressure drilling reflux - Google Patents
Local under balance pressure drilling reflux Download PDFInfo
- Publication number
- CN107939318A CN107939318A CN201711233685.4A CN201711233685A CN107939318A CN 107939318 A CN107939318 A CN 107939318A CN 201711233685 A CN201711233685 A CN 201711233685A CN 107939318 A CN107939318 A CN 107939318A
- Authority
- CN
- China
- Prior art keywords
- drill bit
- coiled tubing
- reflux
- drilling
- pipe fitting
- 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 125
- 238000010992 reflux Methods 0.000 title claims abstract description 51
- 210000002445 nipple Anatomy 0.000 claims abstract description 28
- 239000012530 fluid Substances 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 14
- 239000011796 hollow space material Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 2
- 239000011435 rock Substances 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000004575 stone Substances 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
-
- 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
- E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
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
Description
Claims (12)
- A kind of 1. part under balance pressure drilling reflux, it is characterised in that including:Coiled tubing;It is connected to the coiled tubing connector of the coiled tubing lower end;The continuous pipe fitting being set in outside the coiled tubing connector, the continuous pipe fitting engage with the coiled tubing connector Connection;The drill bit top connection being set in outside the continuous pipe fitting, forms between the drill bit top connection and the continuous pipe fitting There is annular chamber, bearing is provided with the annular chamber;It is arranged on the drill bit of the drill bit top connection lower end;Nozzle is provided with the drill bit;It is connected to the reflux pipe nipple of the top connection upper end;Return port is provided with the side wall of the reflux pipe nipple;The upper end connects It is connected to drilling rod;The coiled tubing is to the inner flow passage formed with perforation between the drill bit;Drilling well liquid energy flows through the inner flow passage to described Nozzle sprays, and carries shaft bottom landwaste and is entered by the return port in the annular space of the coiled tubing and the drilling rod.
- 2. part under balance pressure drilling reflux as claimed in claim 1, it is characterised in that the inner flow passage is by described continuous Oil pipe, the part coiled tubing connector, continuous pipe fitting and drill bit top connection and the drill bit are formed.
- 3. part under balance pressure drilling reflux as claimed in claim 2, it is characterised in that clamp spring is further included, it is described continuous It is provided with the first holding section on oil connection outer wall, is provided with the continuous pipe fitting inner wall and the of the clamp spring is set for card Two holding sections, the coiled tubing connector and the continuous pipe fitting are fastened by the clamp spring.
- 4. part under balance pressure drilling reflux as claimed in claim 3, it is characterised in that further include be fixed on it is described continuous Locating piece outside oil pipe, it is at least one that the lower end of the locating piece can be fastened on the coiled tubing connector, continuous pipe fitting Upper end, when the lower end of the locating piece is engaged, the clamp spring is caught in first holding section.
- 5. part under balance pressure drilling reflux as claimed in claim 4, it is characterised in that the locating piece includes mutually splicing Two positions semi-rings, the positions semi-ring is fixed by screws on the outer wall of the coiled tubing.
- 6. part under balance pressure drilling reflux as claimed in claim 4, it is characterised in that the coiled tubing connector is overall In hollow revolving body, the hollow space is through hole, the coiled tubing connector on inner wall formed with limiting section, it is described The axial direction that limiting section is used to limit the coiled tubing moves down distance.
- 7. part under balance pressure drilling reflux as claimed in claim 6, it is characterised in that outside the coiled tubing connector The first groove is provided with wall, sealing ring is additionally provided with first groove.
- 8. part under balance pressure drilling reflux as claimed in claim 3, it is characterised in that the continuous pipe fitting is in integrally Hollow revolving body, the hollow space are through hole, are provided with the second groove on the outer wall of the continuous pipe fitting, described the Sealing ring is additionally provided with two grooves.
- 9. part under balance pressure drilling reflux as claimed in claim 8, it is characterised in that the drill bit lower contact is in integrally Hollow revolving body, the hollow space are through hole, formed with for against the of the bearing in the drill bit lower contact One limiting section and for the second limiting section against the continuous pipe fitting lower end.
- 10. part under balance pressure drilling reflux as claimed in claim 9, it is characterised in that the drilling rod, reflux pipe nipple, Drill bit top connection, drill bit are connected through a screw thread, and the rotary power of drilling machine is passed by the drilling rod, reflux pipe nipple, drill bit top connection It is handed to the drill bit.
- 11. part under balance pressure drilling reflux as claimed in claim 1, it is characterised in that envelope is provided with the drilling rod Every device, the packer is for the annular space formed between the pit shaft where insulating the drilling rod and the drilling rod, the packer The density of following drilling fluid is less than the density of the packer above drilling fluid, forms local under balance pressure drilling.
- 12. part under balance pressure drilling reflux as claimed in claim 1, it is characterised in that the drill bit top connection and institute Drill bit is stated to be integrally formed.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711233685.4A CN107939318B (en) | 2017-11-30 | 2017-11-30 | Local under balance pressure drilling reflux |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711233685.4A CN107939318B (en) | 2017-11-30 | 2017-11-30 | Local under balance pressure drilling reflux |
Publications (2)
Publication Number | Publication Date |
---|---|
CN107939318A true CN107939318A (en) | 2018-04-20 |
CN107939318B CN107939318B (en) | 2018-11-09 |
Family
ID=61947896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201711233685.4A Active CN107939318B (en) | 2017-11-30 | 2017-11-30 | Local under balance pressure drilling reflux |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107939318B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115182691A (en) * | 2022-09-07 | 2022-10-14 | 南通欧通石油设备有限公司 | Slurry conveying equipment for oil exploitation |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102022077A (en) * | 2010-11-16 | 2011-04-20 | 北京华通兴远供热节能技术有限公司 | Drilling device for underground embedded pipe orifice well of soil source heat pump system |
US20140124219A1 (en) * | 2011-08-11 | 2014-05-08 | Ronald Johannes Dirksen | Systems and methods for locking swivel joints when performing subterranean operations |
CN203594377U (en) * | 2013-12-08 | 2014-05-14 | 中国石油集团渤海钻探工程有限公司 | Coiled tubing gravity drilling tool |
CN104487650A (en) * | 2012-06-27 | 2015-04-01 | 奥德菲尔欧洲服务有限公司 | Drill string mountable wellbore cleanup apparatus and method |
CN106703720A (en) * | 2016-12-02 | 2017-05-24 | 中国石油大学(北京) | Well drilling device with steel wire transmission function |
-
2017
- 2017-11-30 CN CN201711233685.4A patent/CN107939318B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102022077A (en) * | 2010-11-16 | 2011-04-20 | 北京华通兴远供热节能技术有限公司 | Drilling device for underground embedded pipe orifice well of soil source heat pump system |
US20140124219A1 (en) * | 2011-08-11 | 2014-05-08 | Ronald Johannes Dirksen | Systems and methods for locking swivel joints when performing subterranean operations |
CN104487650A (en) * | 2012-06-27 | 2015-04-01 | 奥德菲尔欧洲服务有限公司 | Drill string mountable wellbore cleanup apparatus and method |
CN203594377U (en) * | 2013-12-08 | 2014-05-14 | 中国石油集团渤海钻探工程有限公司 | Coiled tubing gravity drilling tool |
CN106703720A (en) * | 2016-12-02 | 2017-05-24 | 中国石油大学(北京) | Well drilling device with steel wire transmission function |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115182691A (en) * | 2022-09-07 | 2022-10-14 | 南通欧通石油设备有限公司 | Slurry conveying equipment for oil exploitation |
CN115182691B (en) * | 2022-09-07 | 2022-12-20 | 南通欧通石油设备有限公司 | Slurry conveying equipment for oil exploitation |
Also Published As
Publication number | Publication date |
---|---|
CN107939318B (en) | 2018-11-09 |
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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 | ||
CB03 | Change of inventor or designer information | ||
CB03 | Change of inventor or designer information |
Inventor after: Tian Shouceng Inventor after: Chen Zhenliang Inventor after: Shi Huaizhong Inventor after: Zhao Heqian Inventor after: Hou Xinxu Inventor after: Zhou Shijie Inventor before: Shi Huaizhong Inventor before: Chen Zhenliang Inventor before: Zhao Heqian Inventor before: Hou Xinxu Inventor before: Wang Chaohui Inventor before: Zhou Shijie |
|
GR01 | Patent grant | ||
GR01 | Patent grant |