CN102704879A - Abrasive jet processing tool for downhole accidents - Google Patents

Abrasive jet processing tool for downhole accidents Download PDF

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Publication number
CN102704879A
CN102704879A CN2012101564445A CN201210156444A CN102704879A CN 102704879 A CN102704879 A CN 102704879A CN 2012101564445 A CN2012101564445 A CN 2012101564445A CN 201210156444 A CN201210156444 A CN 201210156444A CN 102704879 A CN102704879 A CN 102704879A
Authority
CN
China
Prior art keywords
central axis
cutting
cutting head
fixed
abrasive jet
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
CN2012101564445A
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Chinese (zh)
Inventor
周卫东
王瑞和
祝传增
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 University of Petroleum Beijing CUPB
China University of Petroleum UPC East China
Original Assignee
China University of Petroleum UPC East China
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 University of Petroleum UPC East China filed Critical China University of Petroleum UPC East China
Priority to CN2012101564445A priority Critical patent/CN102704879A/en
Publication of CN102704879A publication Critical patent/CN102704879A/en
Pending legal-status Critical Current

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Abstract

The invention relates to an abrasive jet processing tool for downhole accidents, which comprises a power device, a central shaft, a cutting head, a sleeve and a connecting short piece. The power device comprises a worm wheel and a damping fluid reducer. The cutting head of a cutter can be driven by a worm wheel rotor to rotate and the rotating speed of the cutting head of the cutter can be adjusted by the reducer. The abrasive jet cutting tool is provided with cutting heads in various dimensions. The cutting head is provided with an abrasive jet high-pressure wear-resisting nozzle. The central shaft is fixed in a lower sleeve by a thrust ball bearing. The abrasive jet processing tool for the downhole accidents is small in outer diameter, simple in structure, high in cutting efficiency and level in cut, and the deficiencies that conventional cutting tools cannot go into the conventional drill pipe and pipeline in the downhole accidents such as collapse and jamming of the drilling tool, and sand blocking of pipeline and the like are overcome, the cutting efficiency is high, and the period for processing the downhole accidents is greatly shortened.

Description

Down-hole accident abradant jet handling implement
Technical field:
The present invention relates to a kind of down-hole accident abradant jet handling implement, be applicable to the processing of the down-hole accidents such as bit freezing and the serious sand card of oil pipe that cave in.
Background technology:
The bit freezing that in petroleum drilling engineering, occurs caving in has the possibility that full well is scrapped; And the down-hole bit freezing may cause drilling tool to be buried to stay and forms fish in the well that has been drilled in the process of coal-bed gas exploitation wellbore construction, and sand production too much can cause the stratum stuck oil pipe that collapses aspect petroleum production engineering.Handle that the normal instrument that uses of above accident comprises that die nipple is salvaged, female coupling tap is salvaged, in the jarring releasing on hit unfreezing and under hit unfreezing, milling junk and breakouting pack of dynamite etc.Above handling implement can be handled to general down-hole accident, but then has no idea to solve to above-described more serious down-hole accident.Serious down-hole accident adopts mechanical type inscribe cutter, magnesium powder incised instrument and back-off operation etc. often more than handling, and above instrument exists torque uncontrollable, and otch is not neat, and external diameter such as can't be lowered in the conventional drilling rod oil pipe too greatly at shortcoming.
Summary of the invention:
The object of the invention: be to provide a kind of down-hole accident abradant jet handling implement, be applicable to the instrument of down-hole accidents such as handling bit freezing and sand card.Utilize the instrument of the conventional drilling rod of abradant jet incised, oil pipe and other petroleum pipeline posts; Cutting mode of the present invention is " incised; cold cut is cut " mode, has avoided traditional machinery knives and releasing tool because external diameter more greatly can't running string inside and the not neat defective of well shooting instrument cutting mouth; The present invention simultaneously designs the cutting head of different size, and spray is high more apart from more little cutting efficiency, guarantees that the oil tubing string time spent of cutting different size is the shortest.
Characteristic of the present invention: the present invention relates to a kind of abradant jet cutting tool of handling down-hole accident, comprise power set, central axis, cutting head, sleeve, connection pipe nipple; Said abradant jet cutting tool is furnished with the cutting head of multiple size, and abradant jet high-pressure anti-wear nozzle is installed on the said cutting head; Described power set comprise turbine, damping fluid deceleration device; The cutting head of said cutting tool can be rotated motion under turbine rotor drives, its rotating speed can be regulated by deceleration device; Said central axis is fixed in the sleeve by thrust bearing.
Advantage of the present invention: outside dimension is little; Simple in structure, cutting efficiency is high, otch is smooth; Can handle various conventional oil tubing string accidents; Overcome conventional cutting tool when drilling rod caves in down-hole accident such as bit freezing, the serious sand card of oil pipe and can't be lowered to conventional drilling rod, the inner defective of oil pipe handling, cutting efficiency is high, has shortened the cycle of handling down-hole accident greatly.
Description of drawings:
Fig. 1 is a down-hole accident abradant jet handling implement structural representation.
Fig. 2 is the cutting head sectional view.
The specific embodiment:
With reference to legend, down-hole accident abradant jet handling implement provided by the invention, dynamical system comprises turbine stator 3, turbine rotor 4, deceleration device 10.Linkage comprises connection pipe nipple 8, cooperates joint 14.
Described turbine stator 3 is fixed on the upper bush 5 through circlip 2, and central axis 13 and turbine rotor 4 are through being threaded, and central axis 13 lower ends are connected with rotary cutting head 15 through cooperating joint 14.Central axis 13 is installed two thrust bearings 11, and thrust bearing 11 is fixed in the lower sleeve 9 with bottom end cover 12 through connecting pipe nipple 8.Abrasive makes central axis 13 rotations through turbine stator 3 and turbine rotor 4, and central axis 13 driven rotary cutting heads 15 are done dead axle and rotatablely moved, and the damping fluid deceleration device 10 through having groove is controlled at per minute ten right side of turning left with rotating speed.
The high-pressure abrasive material fluid line is connected with cutting tool through tubing thread 1, and abradant jet cutting nozzles 16 is installed on the rotary cutting head 15, and abrasive can form the high speed abradant jet after quickening through nozzle 16.
Cutting tool uses axle to seal as sand control with O RunddichtringO 7 with L shaped combined seal ring 6.
The cutting head that has designed a series of different sizes is to adapt to the tubing string of different size.
The above is merely the most representative embodiment of the present invention, and is all according to the equalization variation and modification done in the claim of the present invention, all should belong to covering scope of the present invention.

Claims (2)

1. a down-hole accident abradant jet handling implement comprises rotary power unit, sleeve, sealing device and rotary cutting head, it is characterized in that: said power set comprise turbine and damping fluid reducer; Said cutting tool can connect the different size cutting head, changes according to the petroleum pipeline column internal diameter that is cut; Said rotary power unit connects through being connected pipe nipple with sleeve.
2. abradant jet cutting tool according to claim 1 is characterized in that: said abradant jet cutting tool is fixed on lower sleeve through thrust bearing with hollow center shaft, and the bearing of lower sleeve lower end is fixed by bottom end cover; The bearing of upper end is fixed by connecting pipe nipple; Central axis between two bearings partly has vertical groove, makes central axis and damping fluid that bigger contact area arranged, and forms the stronger speed control unit of adjusting power; Upper bush is connected with lower sleeve through connecting pipe nipple; Central axis top is in upper bush, and the upper end car of central axis has screw thread, and turbine rotor is fixed on the central axis through screw thread; Turbine rotor is fixed in upper bush top by circlip; Cutting head is installed in the central axis lower end, is connected with central axis through cooperating joint, has the abrasive inlet on the central axis; Abrasive gets into cutting head through the central axis cavity, can form the high speed abradant jet to satisfy the demand of cutting oil tubing string after abrasive quickens through the nozzle of installing on the cutting head.
CN2012101564445A 2012-05-15 2012-05-15 Abrasive jet processing tool for downhole accidents Pending CN102704879A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012101564445A CN102704879A (en) 2012-05-15 2012-05-15 Abrasive jet processing tool for downhole accidents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012101564445A CN102704879A (en) 2012-05-15 2012-05-15 Abrasive jet processing tool for downhole accidents

Publications (1)

Publication Number Publication Date
CN102704879A true CN102704879A (en) 2012-10-03

Family

ID=46897906

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012101564445A Pending CN102704879A (en) 2012-05-15 2012-05-15 Abrasive jet processing tool for downhole accidents

Country Status (1)

Country Link
CN (1) CN102704879A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105003221A (en) * 2015-06-16 2015-10-28 东北石油大学 Double-concentric controllable-speed cutter using abrasive jets
CN105298421A (en) * 2015-10-21 2016-02-03 中国石油天然气集团公司 Speed-limited rotary cutting tool of coiled tubing abrasive water jetting
CN105298422A (en) * 2015-10-21 2016-02-03 中国石油天然气集团公司 Coiled tubing hydraulic-power rotary cutting system
CN107401389A (en) * 2017-08-02 2017-11-28 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 A kind of method for spraying steel ball under erosion processing well
CN110552646A (en) * 2019-09-19 2019-12-10 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 Rotary hydraulic jet cutting casing tool and construction method thereof
CN112360379A (en) * 2020-11-10 2021-02-12 中石化石油工程技术服务有限公司 Coiled tubing low-speed rotation sandblast cutting device
CN113279731A (en) * 2021-06-04 2021-08-20 西南石油大学 Premixed abrasive jet tool for separating sand in situ by using natural gas hydrate
CN114526011A (en) * 2022-04-21 2022-05-24 合力(天津)能源科技股份有限公司 Underground wireless frequency measurement control jet jar

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105003221A (en) * 2015-06-16 2015-10-28 东北石油大学 Double-concentric controllable-speed cutter using abrasive jets
CN105298422B (en) * 2015-10-21 2019-05-07 中国石油天然气集团公司 Continuous pipe waterpower driven rotary diced system
CN105298421A (en) * 2015-10-21 2016-02-03 中国石油天然气集团公司 Speed-limited rotary cutting tool of coiled tubing abrasive water jetting
CN105298422A (en) * 2015-10-21 2016-02-03 中国石油天然气集团公司 Coiled tubing hydraulic-power rotary cutting system
CN105298421B (en) * 2015-10-21 2018-05-04 中国石油天然气集团公司 Continuous pipe abradant jet speed limit rotary cutting tool
CN107401389B (en) * 2017-08-02 2019-06-18 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 A method of steel ball under injection erosion processing well
CN107401389A (en) * 2017-08-02 2017-11-28 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 A kind of method for spraying steel ball under erosion processing well
CN110552646A (en) * 2019-09-19 2019-12-10 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 Rotary hydraulic jet cutting casing tool and construction method thereof
CN110552646B (en) * 2019-09-19 2020-05-05 中国石油天然气股份有限公司西南油气田分公司工程技术研究院 Rotary hydraulic jet cutting casing tool and construction method thereof
CN112360379A (en) * 2020-11-10 2021-02-12 中石化石油工程技术服务有限公司 Coiled tubing low-speed rotation sandblast cutting device
CN113279731A (en) * 2021-06-04 2021-08-20 西南石油大学 Premixed abrasive jet tool for separating sand in situ by using natural gas hydrate
CN114526011A (en) * 2022-04-21 2022-05-24 合力(天津)能源科技股份有限公司 Underground wireless frequency measurement control jet jar
CN114526011B (en) * 2022-04-21 2022-07-12 合力(天津)能源科技股份有限公司 Underground wireless frequency measurement control jet jar

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C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20121003