WO2002018741A1 - Dispositif de forage utilisant un jet a haute pression - Google Patents

Dispositif de forage utilisant un jet a haute pression Download PDF

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Publication number
WO2002018741A1
WO2002018741A1 PCT/CN2001/000882 CN0100882W WO0218741A1 WO 2002018741 A1 WO2002018741 A1 WO 2002018741A1 CN 0100882 W CN0100882 W CN 0100882W WO 0218741 A1 WO0218741 A1 WO 0218741A1
Authority
WO
WIPO (PCT)
Prior art keywords
drilling
centrifugal pump
drilling fluid
jet
turbine
Prior art date
Application number
PCT/CN2001/000882
Other languages
English (en)
Chinese (zh)
Inventor
Feng Jin
Fangyuan Peng
Kexian Deng
Lei Kang
Jianjun He
Original Assignee
Feng Jin
Fangyuan Peng
Kexian Deng
Lei Kang
Jianjun He
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 Feng Jin, Fangyuan Peng, Kexian Deng, Lei Kang, Jianjun He filed Critical Feng Jin
Priority to AU2001285668A priority Critical patent/AU2001285668A1/en
Publication of WO2002018741A1 publication Critical patent/WO2002018741A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets

Definitions

  • the invention relates to a high-pressure jet drilling tool.
  • Chinese utility model patent ZL96207357.1 discloses an ultra-high-pressure downhole pulse jet turbocharger.
  • the turbocharger is provided with a two-stage turbodrill and a hydraulic cylinder for boosting is provided under the turbodrill.
  • the drilling fluid enters the inlet of the hydraulic cylinder through a wheel, and after being pressurized by the hydraulic cylinder, a pulse jet is ejected from the nozzle to break the rock.
  • This pulsed jet turbocharger cannot provide continuous high-pressure jets, so rock breaking efficiency is low.
  • the hydraulic cylinder uses a gap seal, the particle size of the cuttings contained in the drilling fluid is required to be very small. Therefore, the drilling fluid needs to be strictly filtered before it can be supplied to this high-pressure jet drilling tool.
  • the space in the cylinder barrel is isolated from the outside drilling fluid, so the pressurization efficiency is low.
  • Chinese patent application CN 89101781.X discloses a pressure increasing device for a drill pipe. This pressure increasing device consists of a turbine.
  • Such a pressurization device cannot provide a rock breaking jet with sufficient pressure.
  • U.S. Patent No. 4,819,745 discloses a pulse jet device used in a drilling machine.
  • This scale device includes a turbine device, and a valve device is provided downstream of the turbine device to close or open the outlet of the turbine device. The opening and closing of the valve device creates a pulsed jet.
  • An object of the present invention is to provide a method capable of breaking by means of a continuous high-pressure jet. Drilling tool for rock.
  • a high-pressure jet drilling tool which includes a drill pipe; a turbine device; a speed increasing box whose input shaft is connected to an output shaft of the turbine device; a drill bit connected to an end of the drill pipe; Multi-stage centrifugal pump driven by gearbox; nozzle connected to the outlet of the centrifugal pump; liquid return hole and nozzle for the centrifugal pump on the drill
  • the above-mentioned devices are sequentially arranged in the drill pipe along the axial direction of the drill pipe, and the turbo box is used to drive the speed increasing box, and the output shaft of the speed increasing box drives a multi-stage centrifugal pump.
  • the drilling fluid enters the filtering device from the inlet of the filtering device, and the drilling fluid filtered by the filtering device is pressurized by a multi-stage centrifugal pump, and finally ejected from the nozzle on the drill bit for rock breaking.
  • the turbine drilling tool is not used to drive the drill bit to rotate, but is used to drive a multi-stage centrifugal pump to pressurize the drilling fluid. Therefore, the main bearing of the turbine drilling tool does not withstand the pressure transmitted by the drill bit during drilling, which will greatly simplify the structure of the main bearing and increase the operating life of the turbine. In actual work, there is no movement of the drilling unit relative to the drill pipe, such as the turbine unit, the speed increasing box and the centrifugal pump.
  • the centrifugal pump can provide continuous high-pressure jets, that is, continuous crushing of the bottom rock, instead of pulsed rock, which will make the water power density in front of the bottom rock crushed very high, thereby greatly improving the average rock breaking efficiency.
  • the centrifugal pump can use drilling fluids with large diameters of cuttings, drilling fluids with high-pressure drilling fluids containing large diameters of cuttings can enhance the rock breaking effect.
  • the speed increasing box according to the present invention is sealed to the drilling fluid and does not use a rubber seal, so it can adapt to a working temperature of 200 * C downhole.
  • the liquid return hole according to the present invention adopts a hole existing on a well-known drill bit, and no additional members are added to the hole, so that the maximum cross-section of the liquid return hole is maintained.
  • This technique The technical measures reduce the requirements on the ground equipment, and also reduce the pressure resistance level of the drilling tool according to the present invention. Overview of the drawings
  • Fig. 1 is a schematic diagram showing the structure of the present invention. Niejia embodiment of the present invention
  • the serial number 1 indicates the drill rod.
  • the lower end of the drill rod 1 is fixedly connected to the drill bit 6.
  • the drill pipe 1 is provided with a turbine device 2, a speed increasing box 3, a filtering device 4 and a multi-stage centrifugal pump 5 in this order along its axis.
  • Drill pipe 1 also contains drilling fluid delivered from the ground.
  • the output shaft of the turbine device 2 is connected to the input shaft of the speed increasing box 3 to drive the speed increasing box 3, and the multi-stage centrifugal pump 5 is driven after the speed of the speed increasing box 3 is increased.
  • the output shaft of the speed increasing box 3 is connected to the input shaft of the multi-stage centrifugal pump 5.
  • the drilling fluid is filtered by the filtering device 4 and then enters the multi-stage centrifugal pump 5. After being pressurized by the multi-stage centrifugal pump 5, it is ejected from the nozzle 7.
  • the pressure of the drilling fluid sprayed from the nozzle 7 is 30-50 Mpa.

Abstract

L'invention se rapporte à un dispositif de forage utilisant un jet de fluide à haute pression. Ce dispositif comporte une tige de forage (1), une turbine (2), une unité de multiplication de la vitesse (3) et un trépan (6) fixé à l'extrémité de ladite tige de forage (1). L'arbre d'entrée de l'unité de multiplication de la vitesse (3) est connecté à l'arbre de sortie de la turbine (2). Ce dispositif comporte également une pompe multicellulaire (5) entraînée par ladite unité de multiplication de la vitesse (3). La sortie de ladite pompe (5) est connectée à la tuyère présente sur le trépan (6) qui comprend une ouverture de refoulement. Etant donné que la pompe multicellulaire (5) peut produire un jet de fluide de forage à haute pression, l'efficacité de coupe du fluide de forage peut être améliorée du fait que ce fluide peut contenir des solides de grande dimension.
PCT/CN2001/000882 2000-09-01 2001-05-30 Dispositif de forage utilisant un jet a haute pression WO2002018741A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001285668A AU2001285668A1 (en) 2000-09-01 2001-05-30 A drilling device using a jet of high pressure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN00250432.4 2000-09-01
CN00250432U CN2464925Y (zh) 2000-09-01 2000-09-01 一种以涡轮为动力的井下高压喷射钻具

Publications (1)

Publication Number Publication Date
WO2002018741A1 true WO2002018741A1 (fr) 2002-03-07

Family

ID=4637048

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2001/000882 WO2002018741A1 (fr) 2000-09-01 2001-05-30 Dispositif de forage utilisant un jet a haute pression

Country Status (3)

Country Link
CN (1) CN2464925Y (fr)
AU (1) AU2001285668A1 (fr)
WO (1) WO2002018741A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113776972A (zh) * 2021-09-29 2021-12-10 中煤科工集团重庆研究院有限公司 一种高压射流钻头破岩成孔过程动态测试方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2612792Y (zh) * 2003-04-15 2004-04-21 天津市景宝科技有限公司 一种井下高压连续流喷射钻具
CN102704856A (zh) * 2012-01-20 2012-10-03 龙梅 一种挖煤机器人组合式钻头的淋水装置
CN103630348B (zh) * 2013-11-29 2015-11-18 中国地质大学（北京） 涡轮钻探工艺实验装置
CN111664611B (zh) * 2020-05-06 2023-05-09 杭州电子科技大学 一种对石油开采钻具进行冷却的制冷循环装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3882946A (en) * 1974-04-24 1975-05-13 Rolen Arsenievich Ioannesian Turbodrill
US4819745A (en) * 1983-07-08 1989-04-11 Intech Oil Tools Ltd Flow pulsing apparatus for use in drill string
CN1046015A (zh) * 1989-03-30 1990-10-10 李贵福 增压短节
CN2093894U (zh) * 1991-02-04 1992-01-22 辽河石油勘探局钻井二公司 加长喷嘴与中心喷嘴组合钻头
CN1099456A (zh) * 1993-08-26 1995-03-01 李洪敏 自动增压装置
CN2244096Y (zh) * 1996-04-02 1997-01-01 西安石油学院 超高压井下脉冲射流增压器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3882946A (en) * 1974-04-24 1975-05-13 Rolen Arsenievich Ioannesian Turbodrill
US4819745A (en) * 1983-07-08 1989-04-11 Intech Oil Tools Ltd Flow pulsing apparatus for use in drill string
CN1046015A (zh) * 1989-03-30 1990-10-10 李贵福 增压短节
CN2093894U (zh) * 1991-02-04 1992-01-22 辽河石油勘探局钻井二公司 加长喷嘴与中心喷嘴组合钻头
CN1099456A (zh) * 1993-08-26 1995-03-01 李洪敏 自动增压装置
CN2244096Y (zh) * 1996-04-02 1997-01-01 西安石油学院 超高压井下脉冲射流增压器

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113776972A (zh) * 2021-09-29 2021-12-10 中煤科工集团重庆研究院有限公司 一种高压射流钻头破岩成孔过程动态测试方法
CN113776972B (zh) * 2021-09-29 2024-03-12 中煤科工集团重庆研究院有限公司 一种高压射流钻头破岩成孔过程动态测试方法

Also Published As

Publication number Publication date
AU2001285668A1 (en) 2002-03-13
CN2464925Y (zh) 2001-12-12

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