CN102086755B - Guiding high-pressure jet drilling system based on coiled tubing - Google Patents

Guiding high-pressure jet drilling system based on coiled tubing Download PDF

Info

Publication number
CN102086755B
CN102086755B CN 201010599948 CN201010599948A CN102086755B CN 102086755 B CN102086755 B CN 102086755B CN 201010599948 CN201010599948 CN 201010599948 CN 201010599948 A CN201010599948 A CN 201010599948A CN 102086755 B CN102086755 B CN 102086755B
Authority
CN
China
Prior art keywords
coiled tubing
pressure
drill bit
guiding
drilling
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.)
Expired - Fee Related
Application number
CN 201010599948
Other languages
Chinese (zh)
Other versions
CN102086755A (en
Inventor
邓旭
余雷
喻晨
吴兴国
李敏
李敬东
尚宪飞
苏涛
孙红玉
匡绪兵
高扬
王成业
刘青云
唐亮
徐肇国
马勇
孙少亮
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.)
CNPC Great Wall Drilling Co
Original Assignee
CNPC Great Wall Drilling Co
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 CNPC Great Wall Drilling Co filed Critical CNPC Great Wall Drilling Co
Priority to CN 201010599948 priority Critical patent/CN102086755B/en
Publication of CN102086755A publication Critical patent/CN102086755A/en
Application granted granted Critical
Publication of CN102086755B publication Critical patent/CN102086755B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Earth Drilling (AREA)

Abstract

The invention relates to the technical field of oil (gas and water) well drilling, in particular to a coiled tubing-based high-pressure jet drilling system with a guiding function. The coiled tubing, the connecting joint, the drill collar, the guiding device, the electric motor device, the orienting device and the high-pressure jet drill bit of the underground drilling tool assembly of the system are sequentially connected; the cable is arranged in the coiled tubing, the guiding device is internally provided with an engineering and geological parameter measuring instrument, the electric motor device consists of a high-power motor, a speed reducer and a lubricating oil compensation device, the motor is internally provided with sensors for torque, temperature and the like, the guiding device consists of a driving hydraulic cylinder, a rotary guiding wing and a directional measurement and control system, the lower part and the side surface of the high-pressure jet drill bit are provided with cutting wings, polycrystalline diamond and YD alloy are embedded on the cutting wings, and the lower part of the high-pressure jet drill bit is spirally distributed with a plurality of wear-resistant high-pressure nozzles. The invention has the guiding function, can know the underground information in time, realizes the accurate track control and achieves the purpose of high-efficiency drilling.

Description

A kind of guiding high-pressure jet drilling system based on coiled tubing
Technical field:
The present invention relates to a kind of oil (gas, water) well drilling technology field, particularly a kind of is the high-pressure jet drilling system with guide function on basis with the coiled tubing.
Background technology:
Conventional high-pressure jet drilling technology mainly is to be basis with existing drilling equipment, improves the drilling mud pumping pressure, is main with the machine cut of drill bit, and the broken rock of jetting is working method realization drill bit the creeping into rock of assisting.Though this technology has improved drilling efficiency to a certain extent, the speed-raising effect is not fairly obvious.A kind of in addition popular short radius or radially the high-pressure water jet drilling technology is many carries highly pressurised liquid with high-pressure hose, the broken rock mode of single dependence jetting realize that the rock stratum creeps into.The borehole diameter that this kind drilling mode forms is often less, and borehole length is shorter, generally below 50m~100m.In addition the well system of this type lack effective directional orientation tool or oriented approach simple, the well track poor controllability; Lack engineering and geology monitoring instrument, shaft bottom information can't in time be grasped.More than two kinds of jet drilling adaptability of technology poor, can't satisfy the requirement of quick precise drilling.Therefore be necessary to study a kind of high-pressure jet drilling system, understand down-hole information in real time, better realize hole trajectory control, realize spraying efficiently creeping into guide function.
Summary of the invention:
The technical problem that the present invention will solve provides a kind of guiding high-pressure jet drilling system based on coiled tubing, and this system has guide function, in time understands down-hole information, realizes accurate TRAJECTORY CONTROL, reaches the purpose of efficient drilling well.Overcome that existing well system lacks effective directional orientation tool or oriented approach is simple, the well track poor controllability; Lack engineering and geology monitoring instrument, the deficiency that shaft bottom information can't in time be grasped.
The technical scheme that the present invention taked is: a kind of guiding high-pressure jet drilling system based on coiled tubing, be made up of ground system and DHA two parts; Ground system is made up of coild tubing unit, ground power supply system and high-pressure pump and high pressure pipe joint; DHA is made up of coiled tubing, cable, jointing, drill collar, guiding device, electro-motor device, bearing unit and high-pressure injection drill bit; Coiled tubing, jointing, drill collar, guiding device, electro-motor device, bearing unit and high-pressure injection drill bit are connected in order; Cable is built in coiled tubing inside; Jointing is used to connect coiled tubing and downhole tool pipe string, and drill collar provides suitable the pressure of the drill for the high-pressure injection drill bit, and ensures that coiled tubing is in tension state on the whole; Guiding device is built-in with engineering and geologic parameter measuring apparatus; The electro-motor device is made up of high power motor, reducer and lubrication oil compensation arrangement, and motor is built-in with moment of torsion, temperature pick up, and bearing unit is made up of driving fluid cylinder, the rotary steering wing, directed TT&C system; High-pressure injection drill bit top is the drilling rod connecting thread; There is the cutting wing bottom and side, are inlaid with polycrystalline diamond and YD alloy on the cutting wing, several wear-resisting high pressure nozzles of high-pressure injection drill bit bottom spiral distribution.
The invention has the beneficial effects as follows: the present invention is owing to adopted coiled tubing, jointing, drill collar, guiding device, electro-motor device, bearing unit and high-pressure injection drill bit to be connected in order; Cable is built in the inner mode of coiled tubing; Thereby has the coiled tubing of a utilization transferring high voltage drilling fluid; It is main spraying broken rock with high-pressure hydraulic, and drill bit machine cut is that the mode of assisting realizes the function that creep into the rock stratum; System passes through cable transmission well dynamic and navigation information, and utilizes automatically controlled or hydraulic way realization deflecting orientation.The present invention has improved bit speed and drilling life of bit, has good geosteering function again, has improved the borehole length and the well track precision of jet drilling.In addition, this invention has reduced the repetition grinding of drilling tool chip hold down and landwaste, and drill speed is the influence of liquid body flow velocity not, and information transfer rate promotes tens of times than mud-pulse mode, has favorable applicability.
Description of drawings:
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed explanation.
Accompanying drawing is a DHA structural representation of the present invention.
The specific embodiment:
Shown in accompanying drawing, a kind of guiding high-pressure jet drilling system based on coiled tubing is made up of ground system and DHA two parts; Ground system is made up of coild tubing unit, ground power supply system and high-pressure pump and high pressure pipe joint; DHA is made up of coiled tubing 1, cable 2, jointing 3, drill collar 4, guiding device 5, electro-motor device 6, bearing unit 7 and high-pressure injection drill bit 8; Coiled tubing 1, jointing 3, drill collar 4, guiding device 5, electro-motor device 6, bearing unit 7 and high-pressure injection drill bit 8 are connected in order; Coiled tubing 1 is used for promoting and the lower going-into-well lower tubular column, and transferring high voltage liquid, and removing by coild tubing unit of coiled tubing 1 realizes.Cable 2 is built in coiled tubing 1 inside, and transfer synchronously with it or on carry the power that transmission communication signal and Electric Ground Power System provide.Cable 2 is realized the real-time Transmission of engineering parameter such as down-hole informations such as rate of penetration, moment of torsion, vibration and geologic parameter, and signal is through modulated carrier mode and path of power sharing.Jointing 3 is used to connect coiled tubing 1 and downhole tool pipe string, realizes electric power, communication signal and mechanical connection, and the emergency cut-off point is set.Drill collar 4 provides suitable the pressure of the drill for down-hole high pressure jet bit 8, and ensures that coiled tubing 1 is in tension state on the whole, reduces the helical buckling and the sinus-curve of coiled tubing 1.Guiding device 5 built-in engineerings and geologic parameter measuring apparatus are realized the pressure of the drill, pump pressure, temperature, hole deviation, orientation, and resistivity, gamma, the isoparametric measurement of neutron porosity.Electro-motor device 6 is made up of high power motor, reducer and lubrication oil compensation arrangement, and the built-in moment of torsion of motor, temperature pick up detect motor running condition; The lubrication oil compensation arrangement ensures that electro-motor obtains lubricated fully and cooling under different downhole temperature environment, avoid lubrication oil to expand and miss or shortage.Bearing unit 7 is made up of driving fluid cylinder, the rotary steering wing, directed TT&C system, can be interrupted or rotation continuously, and control high-pressure injection drill bit 8 produces bias forces, and realization deflecting or straight well section are crept into.High-pressure injection drill bit 8 tops are the drilling rod connecting thread, and there is the cutting wing bottom and side, inlay polycrystalline diamond and YD alloy.High-pressure injection drill bit 8 several wear-resisting high pressure nozzles of bottom spirals distribution are realized superhigh pressure jetting.High-pressure injection drill bit 8 at first sprays the radial groove that cuts out stratiform on bottom rock, part outstanding between groove is realized creeping at a high speed by the cutting of drill bit wing.
Cable 2 is built into coiled tubing 1 inside before the operation, and connects the downhole tool combination in order, realization electric power such as cable 2 and down-hole guiding device 5, electro-motor device 6, bearing unit 7 and communication line are connected.Utilize the coild tubing unit on ground that DHA is arrived the downhole designs position down, start the ground high-pressure pump, to the pumped downhole drilling fluid, control pump is pressed in 20~40Mpa through coiled tubing 1,1 circulating cycle of circulating fluid, adjustment mud property.Raising is pumped to 50~100MPa operational pressure then, and starts 8 rotations of down-hole electro-motor device 6 drive high-pressure injection drill bits.Coild tubing unit control the pressure of the drill is in lower scope, and drilling fluid makes bottom rock form groove from high-pressure injection drill bit 8 type ejection in the shape of a spiral.Ledge between the rock groove is cut under the cutting wing effect of high-pressure injection drill bit 8.Coild tubing unit is transferred coiled tubing 1 with the drilling speed degree of optimizing that send, and realizes that the high speed of straight well section is crept into.In the drilling process, engineering parameter such as the pressure of the drill, orientation, hole deviation and geologic parameter are directed to device 5 and gather in real time, and are modulated to and are transferred to Ground analysis on the cable 2 and handle.When the needs deflecting, bearing unit 7 is regulated the guide vane piece automatically in rotating process, makes high-pressure injection drill bit 8 produce the fixed bias power of design direction, realizes the smooth trajectory deflecting.This well system has good guide function, accomplishes the high speed of various complicated track wells and creeps into.

Claims (1)

1. the guiding high-pressure jet drilling system based on coiled tubing is made up of ground system and DHA two parts; Ground system is made up of coild tubing unit, ground power supply system and high-pressure pump and high pressure pipe joint; It is characterized in that: DHA is made up of coiled tubing (1), cable (2), jointing (3), drill collar (4), guiding device (5), electro-motor device (6), bearing unit (7) and high-pressure injection drill bit (8); Coiled tubing (1), jointing (3), drill collar (4), guiding device (5), electro-motor device (6), bearing unit (7) and high-pressure injection drill bit (8) are connected in order; Cable (2) is built in coiled tubing (1) inside; Jointing (3) is used to connect coiled tubing (1) and downhole tool pipe string, and drill collar (4) provides suitable the pressure of the drill for high-pressure injection drill bit (8), and ensures that coiled tubing (1) is in tension state on the whole; Guiding device (5) is built-in with engineering and geologic parameter measuring apparatus; Electro-motor device (6) is made up of high power motor, reducer and lubrication oil compensation arrangement, and motor is built-in with moment of torsion, temperature pick up, and bearing unit (7) is made up of driving fluid cylinder, the rotary steering wing, directed TT&C system; High-pressure injection drill bit (8) top is the drilling rod connecting thread; There is the cutting wing bottom and side, are inlaid with polycrystalline diamond and YD alloy on the cutting wing, several wear-resisting high pressure nozzles of high-pressure injection drill bit (8) bottom spiral distribution.
CN 201010599948 2010-12-22 2010-12-22 Guiding high-pressure jet drilling system based on coiled tubing Expired - Fee Related CN102086755B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201010599948 CN102086755B (en) 2010-12-22 2010-12-22 Guiding high-pressure jet drilling system based on coiled tubing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201010599948 CN102086755B (en) 2010-12-22 2010-12-22 Guiding high-pressure jet drilling system based on coiled tubing

Publications (2)

Publication Number Publication Date
CN102086755A CN102086755A (en) 2011-06-08
CN102086755B true CN102086755B (en) 2012-11-14

Family

ID=44098731

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201010599948 Expired - Fee Related CN102086755B (en) 2010-12-22 2010-12-22 Guiding high-pressure jet drilling system based on coiled tubing

Country Status (1)

Country Link
CN (1) CN102086755B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102654035A (en) * 2012-05-09 2012-09-05 中国石油大学(北京) Bottom drilling tool combination structure for coiled tubing drilling or drilling
CN107288547B (en) * 2016-04-01 2019-01-11 中国石油化工股份有限公司 A kind of down-hole drilling device
CN106677186A (en) * 2017-02-17 2017-05-17 北京中岩大地科技股份有限公司 Free-angle rotary jet grouting technology
CN107605456B (en) * 2017-08-21 2020-08-04 西南石油大学 Control system and method for micro-borehole coiled tubing orientation tool
CN108590692A (en) * 2018-07-02 2018-09-28 济南猫爪智能机械有限公司 Without foundation pit without pilot tunnel self-balancing pipe excavation method and device
CN109356526B (en) * 2018-11-07 2019-10-15 中国地质科学院勘探技术研究所 A kind of continuous deflecting forming hole method of injecting type
CN114198023B (en) * 2022-02-16 2022-04-15 东营仪锦能源科技有限公司 Screw rod direction regulator for hydraulic continuous oil pipe drilling

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09256767A (en) * 1996-03-19 1997-09-30 Mitsui Eng & Shipbuild Co Ltd High pressure water jet boring method and device thereof
US6289998B1 (en) * 1998-01-08 2001-09-18 Baker Hughes Incorporated Downhole tool including pressure intensifier for drilling wellbores
CN2612792Y (en) * 2003-04-15 2004-04-21 天津市景宝科技有限公司 Down-hole high pressure continuous stream jetting drilling tool
CN201588543U (en) * 2009-12-15 2010-09-22 中国石油集团长城钻探工程有限公司 Radial well drilling device
CN101824966A (en) * 2010-05-11 2010-09-08 上海宏睿油气田径向井技术服务有限公司 Device for jetting ultrashort radius horizontal hole by using high-pressure water

Also Published As

Publication number Publication date
CN102086755A (en) 2011-06-08

Similar Documents

Publication Publication Date Title
CN102086755B (en) Guiding high-pressure jet drilling system based on coiled tubing
CA1261817A (en) Earth drilling method and apparatus using multiple hydraulic forces
US9057223B2 (en) Directional drilling system
CN1926304B (en) Downhole drilling of a lateral hole
US8636086B2 (en) Methods of drilling with a downhole drilling machine
EP1780372B1 (en) Drilling system
US8517121B2 (en) Steerable drilling system
US20010052428A1 (en) Steerable drilling tool
CN1299915A (en) Automatically controlled rotation-controllable drilling system and drilling method
US9080387B2 (en) Directional wellbore control by pilot hole guidance
CN202125247U (en) Fully-electric composite continuous pipe drilling device
CN202325239U (en) Hydraulic jetting radial drilling device
CN106703720A (en) Well drilling device with steel wire transmission function
CN107288540A (en) A kind of oil/gas drilling volume increase connection makees device and method
CN101629474B (en) Ground-driven underground horizontal boring method for oil well
US20150337598A1 (en) Pressure Booster for Rotary Steerable System Tool
CN110005349A (en) It is a kind of can deep drilling composite drill rod
CN114293913A (en) Downhole friction reducing and resistance reducing tool and method based on mechanical decoupling
RU2707208C1 (en) Flexible weighted drill pipe for rotary controlled system
CN111441720A (en) Coiled tubing electric drilling device
CN202023504U (en) Rotary eccentric casing drilling device
EP3186465B1 (en) Downhole motor for extended reach applications
CN110984858B (en) Downhole drilling tool and drilling equipment for drilling radial horizontal well
CN202611594U (en) Special drill head for windowing water-jet radial drilling sleeve pipe
CN210622733U (en) Composite drill rod capable of deeply drilling

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C56 Change in the name or address of the patentee
CP02 Change in the address of a patent holder

Address after: 124010 Xinglongtai, Liaoning Province, oil street, No. 96, No.

Patentee after: Chinese Petroleum Group Changcheng Drilling Engineering Co., Ltd.

Address before: 100724 No. 6, Kang Street, six, Xicheng District, Beijing

Patentee before: Chinese Petroleum Group Changcheng Drilling Engineering Co., Ltd.

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20121114

Termination date: 20131222