CN103291237A - Circumferential locking device for coring in sediment stratum - Google Patents

Circumferential locking device for coring in sediment stratum Download PDF

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Publication number
CN103291237A
CN103291237A CN201310232427XA CN201310232427A CN103291237A CN 103291237 A CN103291237 A CN 103291237A CN 201310232427X A CN201310232427X A CN 201310232427XA CN 201310232427 A CN201310232427 A CN 201310232427A CN 103291237 A CN103291237 A CN 103291237A
Authority
CN
China
Prior art keywords
locking
coring
stratum
short section
pipe nipple
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
Application number
CN201310232427XA
Other languages
Chinese (zh)
Inventor
李清平
李新仲
盛磊祥
许俊良
姚海元
任宏
朱海山
李迅科
蒋世全
耿亚楠
余敏
秦蕊
王凯
庞维新
许亮斌
朱荣东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China National Offshore Oil Corp CNOOC
CNOOC Research Institute Co Ltd
Original Assignee
China National Offshore Oil Corp CNOOC
CNOOC Research Institute Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China National Offshore Oil Corp CNOOC, CNOOC Research Institute Co Ltd filed Critical China National Offshore Oil Corp CNOOC
Priority to CN201310232427XA priority Critical patent/CN103291237A/en
Publication of CN103291237A publication Critical patent/CN103291237A/en
Pending legal-status Critical Current

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  • Earth Drilling (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

The invention relates to a circumferential locking device for coring in a sediment stratum. The circumferential locking device comprises a coring drill, an annular locking short section and a connection cylinder, wherein a circumferential locking groove is formed inside the coring drill, the annular locking short section is installed inside the locking groove, and the connection cylinder is inserted from the upper end of the coring drill and connected with the locking short section. A plurality of locking keys are arranged on the outer circle of the locking short section and matched with the locking groove for preventing the locking short section from rotating inside the locking groove. When sediment stratum coring operation is carried out, a sampling cylinder is connected with the locking short section, the coring drill drives the sampling cylinder to rotate together through the locking short section, and the sampling cylinder drills into the stratum for carrying out coring operation. When sediment stratum comprehensive drilling operation is carried out, a drill plug is connected with the locking short section, and the coring drill drives the drill plug to rotate together for carrying out comprehensive drilling through the locking short section. Thus, according to the circumferential locking device, conversion between working modes of coring in the sediment stratum and comprehensive drilling can be achieved.

Description

The circumferential locking device of coring in a kind of deposit stratum
Technical field
The present invention relates to a kind of locking device, be specifically related to a kind of circumferential locking device of coring deep-sea drilling the deposit stratum in field coring that is applicable to.
Background technology
At present, there is not locking device in the similar drilling and coring delivery device of domestic utilization.Though in other technical field similar structures is arranged, owing to do not need to core and the conversion of creeping in these technical fields comprehensively, so locking device is not arranged on drill bit internal, can not satisfy and core and the conversion of comprehensively creeping into work.
Summary of the invention
At the problems referred to above, the purpose of this invention is to provide a kind of circumferential locking device of coring deep-sea drilling the deposit stratum in field coring that is applicable to.
For achieving the above object, the present invention takes following technical scheme: the circumferential locking device of coring in a kind of deposit stratum, it is characterized in that, this device comprises: an inside is provided with the core bit of circumferential lock slots, one is installed in the annular lock pipe nipple in the described lock slots, and a connecting cylinder that is inserted and be connected with described locking pipe nipple by described core bit upper end; The cylindrical of described locking pipe nipple is provided with some locking keys, and described locking key matches to stop described locking pipe nipple to rotate in described lock slots with described lock slots.
The lower end of described core bit is provided with one and is used for carrying out the sampling tube of coring in the deposit stratum, and described sampling tube is inserted by described core bit lower end and is connected by flange with described locking pipe nipple.
The lower end of described core bit is provided with one and is used for carrying out the deposit stratum drill bit plug of boring comprehensively, and described drill bit plug is inserted by described core bit lower end and is connected by flange with described locking pipe nipple.
The present invention is owing to take above technical scheme, and it has the following advantages: the present invention arranges a circumferential lock slots in core bit, and circumferentially in the lock slots locking pipe nipple being installed, connects sampling tube or drill bit plug by the locking pipe nipple.Because therefore the locking pipe nipple can realize sending into and reclaiming of sampling tube with core bit rotation and easy on and off activity when implementing coring operation, and can rotate together by locking pipe nipple drive sampling tube, sampling tube pierces the stratum and carries out coring operation.When implementing boring comprehensively, drill bit is filled in to come from by, and can drive the drill bit plug and rotate together and implement boring comprehensively.This shows, can be implemented in coring and the conversion of comprehensively creeping into working method in the deposit stratum by the present invention.
Description of drawings
Fig. 1 is the structural representation of circumferential locking device of the present invention.
The specific embodiment
Below in conjunction with drawings and Examples the present invention is described in detail.
Fig. 1 has shown that according to circumferential locking device 100 provided by the invention, this circumferential locking device 100 comprises a core bit 1, is provided with a circumferential lock slots 2 in this core bit 1.One annular lock pipe nipple 3 is installed in the lock slots 2, and the cylindrical of locking pipe nipple 3 is provided with some locking keys 4, and locking key 4 matches to stop locking pipe nipple 3 to rotate in lock slots 2 with lock slots 2.The upper end of core bit 1 is provided with a connecting cylinder 5, the lower end of this connecting cylinder 5 insert in the core bit 1 and with locking pipe nipple 3 by being threaded, the upper end of this connecting cylinder 5 is connected (not shown) with the drill string of drill ship.The lower end of core bit 1 is provided with one sampling tube/drill bit plug 6, and sampling tube/drill bit plug 6 is inserted by core bit 1 lower end and is connected by flange with locking pipe nipple 3.
When carrying out the coring operation of deposit stratum, at first sampling tube 6 is connected with locking pipe nipple 3, then coring tool is utilized rope to send into the depth location that requirement is cored in the well, and utilize drill ship equipment to drive coring tool and start working.This moment, core bit 1 rotated together by locking pipe nipple 3 drive sampling tubes 6, and sampling tube 6 pierces the stratum and carries out coring operation.When the coring operation end, connecting cylinder 5, locking pipe nipple 3 and sampling tube 6 are recovered together.
When carrying out the comprehensive bore operation in deposit stratum, drill bit plug 6 is connected with locking pipe nipple 3, core bit 1 rotates together by locking pipe nipple 3 drive drill bit plugs 6 and implements boring comprehensively.
The various embodiments described above only are used for explanation the present invention; wherein the structure of each parts, connected mode and manufacture craft etc. all can change to some extent; every equivalents and improvement of carrying out on the basis of technical solution of the present invention all should do not got rid of outside protection scope of the present invention.

Claims (3)

1. circumferential locking device of coring in the deposit stratum is characterized in that this device comprises:
One inside is provided with the core bit of circumferential lock slots,
One is installed in the annular lock pipe nipple in the described lock slots, and
One by the connecting cylinder that inserts and be connected with described locking pipe nipple on the described core bit;
The cylindrical of described locking pipe nipple is provided with some locking keys, and described locking key matches to stop described locking pipe nipple to rotate in described lock slots with described lock slots.
2. a kind of deposit as claimed in claim 1 stratum circumferential locking device of coring, it is characterized in that: the lower end of described core bit is provided with one and is used for carrying out the sampling tube of coring in the deposit stratum, and described sampling tube is inserted by described core bit lower end and is connected by flange with described locking pipe nipple.
3. a kind of deposit as claimed in claim 1 stratum circumferential locking device of coring, it is characterized in that: the lower end of described core bit is provided with one and is used for carrying out the deposit stratum drill bit plug of boring comprehensively, and described drill bit plug is inserted by described core bit lower end and is connected by flange with described locking pipe nipple.
CN201310232427XA 2013-06-13 2013-06-13 Circumferential locking device for coring in sediment stratum Pending CN103291237A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310232427XA CN103291237A (en) 2013-06-13 2013-06-13 Circumferential locking device for coring in sediment stratum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310232427XA CN103291237A (en) 2013-06-13 2013-06-13 Circumferential locking device for coring in sediment stratum

Publications (1)

Publication Number Publication Date
CN103291237A true CN103291237A (en) 2013-09-11

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310232427XA Pending CN103291237A (en) 2013-06-13 2013-06-13 Circumferential locking device for coring in sediment stratum

Country Status (1)

Country Link
CN (1) CN103291237A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106970428A (en) * 2017-05-02 2017-07-21 成都理工大学 Seabed inserting tube

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB248993A (en) * 1925-07-08 1926-03-18 James Cuthill An improved coring and reaming tool for rotary well drilling
US1803731A (en) * 1929-02-16 1931-05-05 Hughes Tool Co Core bit plug
SU1441049A1 (en) * 1986-06-24 1988-11-30 Специальное Конструкторско-Технологическое Бюро По Комплексной Переработке Минерального Сырья С Опытным Производством Ан Азсср Drilling crown bit
NO169790B (en) * 1979-03-22 1992-04-27 Diamant Boart Sa PROCEDURE FOR ADJUSTING THE FLOW AMOUNT OF DRILL WATER AT THE END OF A NUCLEAR DRILLING DEVICE.
CN201137475Y (en) * 2007-06-01 2008-10-22 中国石化集团胜利石油管理局钻井工艺研究院 Selection type core-picking device
CN201184154Y (en) * 2008-03-06 2009-01-21 大庆石油管理局 Novel locking apparatus for fetching core with drill
CN101382043A (en) * 2007-09-07 2009-03-11 中国石化集团胜利石油管理局钻井工艺研究院 Combined drill for drilling with casing
CN102287154A (en) * 2011-05-25 2011-12-21 中煤科工集团重庆研究院 Soft coal bed self sealing type sampling drill bit
CN102943642A (en) * 2012-12-08 2013-02-27 吉林大学 Lifting-free borehole bottom rope freezing coring drilling tool and method
CN203362085U (en) * 2013-06-13 2013-12-25 中国海洋石油总公司 Circumferential locking device for sediment stratum coring

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB248993A (en) * 1925-07-08 1926-03-18 James Cuthill An improved coring and reaming tool for rotary well drilling
US1803731A (en) * 1929-02-16 1931-05-05 Hughes Tool Co Core bit plug
NO169790B (en) * 1979-03-22 1992-04-27 Diamant Boart Sa PROCEDURE FOR ADJUSTING THE FLOW AMOUNT OF DRILL WATER AT THE END OF A NUCLEAR DRILLING DEVICE.
SU1441049A1 (en) * 1986-06-24 1988-11-30 Специальное Конструкторско-Технологическое Бюро По Комплексной Переработке Минерального Сырья С Опытным Производством Ан Азсср Drilling crown bit
CN201137475Y (en) * 2007-06-01 2008-10-22 中国石化集团胜利石油管理局钻井工艺研究院 Selection type core-picking device
CN101382043A (en) * 2007-09-07 2009-03-11 中国石化集团胜利石油管理局钻井工艺研究院 Combined drill for drilling with casing
CN201184154Y (en) * 2008-03-06 2009-01-21 大庆石油管理局 Novel locking apparatus for fetching core with drill
CN102287154A (en) * 2011-05-25 2011-12-21 中煤科工集团重庆研究院 Soft coal bed self sealing type sampling drill bit
CN102943642A (en) * 2012-12-08 2013-02-27 吉林大学 Lifting-free borehole bottom rope freezing coring drilling tool and method
CN203362085U (en) * 2013-06-13 2013-12-25 中国海洋石油总公司 Circumferential locking device for sediment stratum coring

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106970428A (en) * 2017-05-02 2017-07-21 成都理工大学 Seabed inserting tube
CN106970428B (en) * 2017-05-02 2018-05-01 成都理工大学 Seabed inserting tube

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Application publication date: 20130911

RJ01 Rejection of invention patent application after publication