CN102086755B - Guiding high-pressure jet drilling system based on coiled tubing - Google Patents
Guiding high-pressure jet drilling system based on coiled tubing Download PDFInfo
- 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
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- Prior art keywords
- coiled tubing
- pressure
- drill bit
- guiding
- drilling
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- 238000005553 drilling Methods 0.000 title claims abstract description 33
- 239000000956 alloy Substances 0.000 claims abstract description 4
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 4
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 4
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 4
- 239000010432 diamond Substances 0.000 claims abstract description 4
- 238000002347 injection Methods 0.000 claims description 21
- 239000007924 injection Substances 0.000 claims description 21
- 239000012530 fluid Substances 0.000 claims description 7
- 238000005461 lubrication Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract description 2
- 239000010687 lubricating oil Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 abstract 1
- 239000011435 rock Substances 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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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
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.
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.
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 |
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| 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 |
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| CN (1) | CN102086755B (en) |
Families Citing this family (7)
| 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)
| 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 |
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- 2010-12-22 CN CN 201010599948 patent/CN102086755B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN102086755A (en) | 2011-06-08 |
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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. |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20131222 |