EP0429765A2 - Outil pour forage dirigé - Google Patents
Outil pour forage dirigé Download PDFInfo
- Publication number
- EP0429765A2 EP0429765A2 EP90116046A EP90116046A EP0429765A2 EP 0429765 A2 EP0429765 A2 EP 0429765A2 EP 90116046 A EP90116046 A EP 90116046A EP 90116046 A EP90116046 A EP 90116046A EP 0429765 A2 EP0429765 A2 EP 0429765A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- drilling tool
- drilling
- tool housing
- control device
- tool
- 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.)
- Withdrawn
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 34
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- 238000005755 formation reaction Methods 0.000 claims abstract description 4
- 239000011435 rock Substances 0.000 claims abstract description 4
- 230000035939 shock Effects 0.000 claims description 5
- 239000006096 absorbing agent Substances 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- 238000009527 percussion Methods 0.000 abstract 1
- 238000011010 flushing procedure Methods 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
- E21B7/068—Deflecting the direction of boreholes drilled by a down-hole drilling motor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
Definitions
- the invention relates to a drilling tool for sinking bores in underground rock formations, with the specification of a selectable direction course for the borehole in a design according to the preamble of claim 1, as is known for example from DE-PS 31 22, 552.
- the invention has for its object to provide a directional drilling tool of the type mentioned, which provides an improved directional behavior with increased drilling progress.
- the invention solves this problem with a drilling tool according to claim 1.
- the design of the drilling tool with an impact device assigned to the chisel shaft enables drilling operation with a substantially reduced static pressing force on the drill bit, with the result of correspondingly reduced lateral force components on the drill bit, which influence the desired directional course of the drilling tool as disturbing forces.
- the lower deflections of the drilling tool due to the reduction of the lateral forces can be compensated for with lower radial control forces, and the reduction of deflections and the reduction of control forces create in connection with increased effectiveness of the Ge stone destruction process on the drill bit significantly increased drilling progress.
- the drilling tool can be used with particularly favorable results in hard or brittle rock and in soil conditions with layers that are unfavorable for the directional guidance.
- connection means e.g. Screw thread
- connection means e.g. Screw thread
- a drill pipe string 2 connectable with a drill pipe string 2 and comprises a tool housing which is non-rotatable during drilling operation and has an upper housing part 3, which is provided with stabilizer blades 4 in the lower region, and a lower housing part 5, with stabilizer blades 6 in its upper region and with in its lower region four radially outwardly and inwardly displaceable force transducers 7 is provided in the form of thrust pieces which, in contact with the wall of the borehole 1, determine the alignment of the drilling tool and thus the course of the borehole.
- connection means e.g. Screw thread
- the drilling tool further comprises a chisel shaft 8, which is rotatably mounted in the upper housing part 3, extends through the lower housing part 5, is rotatably mounted in the latter and carries a drill bit 10 on its end 9 projecting from the lower housing part 5.
- the chisel shaft 8 is designed as a hollow shaft and delimits a central longitudinal channel 11 which defines the interior of the drill pipe string 2 continues and opens out in the area of the drill bit 10.
- a striking device 12 is provided between the upper and the lower housing part 3, 5 and forms part of the chisel shaft 8.
- the striking device 12 can be of any known or suitable design and generates oscillating axial forces with the aid of the drilling fluid in the lower part 13 of the bit shaft 8, which superimpose a small, measurable static axial force and impart a pressure component with a swelling characteristic to the bit 10.
- the upper end of the chisel shaft 8 is connected to a rotary drive 14, which is only indicated schematically and is accommodated in the upper housing part 3 and which sets the chisel shaft 8 in a preferably slow rotation and gives the drill bit 10 a rotary conversion movement.
- control device 15 which contains sensors for determining the course of the borehole - i.e. the respective position of the drilling tool, in particular its inclination - as well as an evaluation device for evaluating determined data and a transmitter for issuing control commands by means of which the pressure-actuated force transducers 7, of which at least four are arranged distributed over the circumference, are radially positioned and fixed in position will.
- the measurement and evaluation part of the control device 15 can independently determine the course of the direction of the borehole 1 according to a predetermined program and can be equipped with its own voltage source. However, as is the case in the examples shown, it can also be connected via a connecting cable 16 to an above-ground control control device (not shown) for continuous data exchange. At the same time, the power supply of the control device 15 can be carried out via such a connecting cable 16, which expediently runs inside the drill pipe string 2 and then at least over part of its length in the annular space of the bore 1 drilled with the drilling tool be made. Compressed air is preferably used as the flushing medium, in particular for bores in the mining or construction industry, which are often only created a few hundred meters deep.
- compressed air as a flushing medium improves the dissolving effect on cuttings in hard formations and favors the provision of a connecting cable, in the place of which other transmission means are used in the case of compressed air as flushing medium, for example slip ring transmitters or transformer couplings.
- compressed air as flushing medium
- information can be transmitted through pressure changes in the flushing column, as is common in deep drilling technology.
- the units actuated by the drilling fluid, such as the rotary drive and the impact device, are each designed to suit the drilling fluid used.
- FIG. 2 illustrates an embodiment in which a shock absorber 17 is assigned to the chisel shaft 8 above the impact device 12.
- This shock absorber is part of the chisel shaft 8 and is arranged in the area between the housing parts 3, 5 at the point at which the striking device 12 is located in FIG. 1.
- the striking device 12 is arranged in the embodiment according to FIG. 2 in the area of the chisel shaft 8 located inside the housing part 5.
- the control device 15 has found an arrangement in the lower region of the housing part 15 and at the level of the force transmitter 7, and this control device 15 is also connected to an above-ground control console via a connecting cable 16.
- the shock absorber 17 protects the threaded connections when axial shock loads occur, so that the amplitude of the axial force vibrations can be safely increased for the threaded connections, but also for the components of the measuring and evaluation part of the control device 15. This also goes hand in hand with an increase in drilling progress.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3939538 | 1989-11-30 | ||
DE3939538A DE3939538A1 (de) | 1989-11-30 | 1989-11-30 | Richtungsbohrwerkzeug |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0429765A2 true EP0429765A2 (fr) | 1991-06-05 |
EP0429765A3 EP0429765A3 (en) | 1992-07-22 |
Family
ID=6394464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19900116046 Withdrawn EP0429765A3 (en) | 1989-11-30 | 1990-08-22 | Directional drilling tool |
Country Status (5)
Country | Link |
---|---|
US (1) | US5156222A (fr) |
EP (1) | EP0429765A3 (fr) |
CA (1) | CA2031093A1 (fr) |
DE (1) | DE3939538A1 (fr) |
NO (1) | NO905190L (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997044564A1 (fr) * | 1996-05-17 | 1997-11-27 | Andergauge Limited | Appareil de forage |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5368215A (en) * | 1992-09-08 | 1994-11-29 | United States Surgical Corporation | Surgical apparatus and detachable anvil rod therefor |
US5513713A (en) * | 1994-01-25 | 1996-05-07 | The United States Of America As Represented By The Secretary Of The Navy | Steerable drillhead |
US5738178A (en) * | 1995-11-17 | 1998-04-14 | Baker Hughes Incorporated | Method and apparatus for navigational drilling with a downhole motor employing independent drill string and bottomhole assembly rotary orientation and rotation |
AUPO062296A0 (en) * | 1996-06-25 | 1996-07-18 | Gray, Ian | A system for directional control of drilling |
US6609579B2 (en) | 1997-01-30 | 2003-08-26 | Baker Hughes Incorporated | Drilling assembly with a steering device for coiled-tubing operations |
DE69801646T2 (de) * | 1997-01-30 | 2002-07-04 | Baker Hughes Inc | Bohreinrichtung mit lenkvorrichtung zur benutzung mit einem gewickelten rohrstrang |
US6102138A (en) * | 1997-08-20 | 2000-08-15 | Baker Hughes Incorporated | Pressure-modulation valve assembly |
US6470974B1 (en) | 1999-04-14 | 2002-10-29 | Western Well Tool, Inc. | Three-dimensional steering tool for controlled downhole extended-reach directional drilling |
CA2260612C (fr) * | 1999-02-03 | 2005-04-26 | Dresser Industries, Inc. | Marteau pneumatique a forage dirige |
US8408333B2 (en) | 2006-05-11 | 2013-04-02 | Schlumberger Technology Corporation | Steer systems for coiled tubing drilling and method of use |
CN102808580B (zh) * | 2012-08-10 | 2014-07-30 | 中国地质大学(武汉) | 一种煤层气水平开采孔激光定向钻进钻具及其钻进方法 |
SE541325C2 (sv) * | 2017-03-03 | 2019-07-02 | Goeran Jysky Med Firma Inva Goeran Jysky | Sänkborrningsanordning |
CN108798501B (zh) * | 2018-05-08 | 2019-10-25 | 中国石油大学(华东) | 轴向水力冲击钻井提速工具 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1926460A1 (de) * | 1968-05-25 | 1969-11-27 | Rolls Royce | Ablenkeinrichtung fuer Tiefbohrgeraete,deren Bohrkopf durch einen im Bohrloch befindlichen Antriebsmotor angetrieben wird |
US3563323A (en) * | 1968-01-19 | 1971-02-16 | Rolls Royce | Apparatus for borehole drilling |
FR2445431A1 (fr) * | 1978-12-29 | 1980-07-25 | Inst Francais Du Petrole | Garniture de forage avec etages de stabilisation a lames retractables |
DE3122552A1 (de) * | 1980-06-12 | 1982-06-16 | Kirk R. 77084 Houston Tex. Shirley | Steuerwerkzeug fuer drehbohrstraenge |
US4367797A (en) * | 1980-08-25 | 1983-01-11 | Amf Incorporated | Cable transfer sub for drill pipe and method |
US4402495A (en) * | 1979-12-10 | 1983-09-06 | Hughes Tool Company | Drill string shock absorber with pressurized lubricant system |
US4466496A (en) * | 1979-07-16 | 1984-08-21 | Mustang Trip Saver, Inc. | Technique for damping oscillations in a drill string |
DE8809108U1 (de) * | 1988-07-15 | 1988-09-01 | Schmidt, Paul, 5940 Lennestadt | Langkörper |
EP0323433A1 (fr) * | 1987-12-04 | 1989-07-05 | Friedrich Hammer | Dispositif pour poser sous le sol des conduites ou similaires |
US4852669A (en) * | 1988-05-09 | 1989-08-01 | Walker Thomas A | Directional downhole drill apparatus |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3062303A (en) * | 1960-03-21 | 1962-11-06 | Shell Oil Co | Method and apparatus for controlling hole direction and inclination |
US3706348A (en) * | 1971-12-06 | 1972-12-19 | Shell Oil Co | Well deviation control system |
US3888319A (en) * | 1973-11-26 | 1975-06-10 | Continental Oil Co | Control system for a drilling apparatus |
US4042046A (en) * | 1974-02-25 | 1977-08-16 | The Richmond Manufacturing Company | Directional control mechanism for underground driven pipes and conduits |
US4241796A (en) * | 1979-11-15 | 1980-12-30 | Terra Tek, Inc. | Active drill stabilizer assembly |
DE3046122C2 (de) * | 1980-12-06 | 1984-05-17 | Bergwerksverband Gmbh, 4300 Essen | Einrichtungen zur Herstellung zielgerichteter Bohrungen mit einer Zielbohrstange |
DE3000239C2 (de) * | 1980-01-05 | 1983-10-20 | Bergwerksverband Gmbh, 4300 Essen | Einrichtung zur Herstellung zielgerichteter Bohrungen |
US4438820A (en) * | 1981-11-16 | 1984-03-27 | Gibson Paul N | Grade monitoring and steering apparatus |
US4592432A (en) * | 1985-06-03 | 1986-06-03 | Williams Russell R | Automatically operated boring head |
US4705119A (en) * | 1985-09-16 | 1987-11-10 | Institut Gornogo Dela So An Sssr | Annular air-hammer apparatus for drilling holes |
US4834193A (en) * | 1987-12-22 | 1989-05-30 | Gas Research Institute | Earth boring apparatus and method with control valve |
US4854397A (en) * | 1988-09-15 | 1989-08-08 | Amoco Corporation | System for directional drilling and related method of use |
US4958689A (en) * | 1988-12-30 | 1990-09-25 | Gas Research Institute | Method of providing a high pressure surge of working fluid to an underground percussive mole |
-
1989
- 1989-11-30 DE DE3939538A patent/DE3939538A1/de active Granted
-
1990
- 1990-08-22 EP EP19900116046 patent/EP0429765A3/de not_active Withdrawn
- 1990-11-13 US US07/612,909 patent/US5156222A/en not_active Expired - Fee Related
- 1990-11-29 NO NO90905190A patent/NO905190L/no unknown
- 1990-11-29 CA CA002031093A patent/CA2031093A1/fr not_active Abandoned
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3563323A (en) * | 1968-01-19 | 1971-02-16 | Rolls Royce | Apparatus for borehole drilling |
DE1926460A1 (de) * | 1968-05-25 | 1969-11-27 | Rolls Royce | Ablenkeinrichtung fuer Tiefbohrgeraete,deren Bohrkopf durch einen im Bohrloch befindlichen Antriebsmotor angetrieben wird |
FR2445431A1 (fr) * | 1978-12-29 | 1980-07-25 | Inst Francais Du Petrole | Garniture de forage avec etages de stabilisation a lames retractables |
US4466496A (en) * | 1979-07-16 | 1984-08-21 | Mustang Trip Saver, Inc. | Technique for damping oscillations in a drill string |
US4402495A (en) * | 1979-12-10 | 1983-09-06 | Hughes Tool Company | Drill string shock absorber with pressurized lubricant system |
DE3122552A1 (de) * | 1980-06-12 | 1982-06-16 | Kirk R. 77084 Houston Tex. Shirley | Steuerwerkzeug fuer drehbohrstraenge |
US4367797A (en) * | 1980-08-25 | 1983-01-11 | Amf Incorporated | Cable transfer sub for drill pipe and method |
EP0323433A1 (fr) * | 1987-12-04 | 1989-07-05 | Friedrich Hammer | Dispositif pour poser sous le sol des conduites ou similaires |
US4852669A (en) * | 1988-05-09 | 1989-08-01 | Walker Thomas A | Directional downhole drill apparatus |
DE8809108U1 (de) * | 1988-07-15 | 1988-09-01 | Schmidt, Paul, 5940 Lennestadt | Langkörper |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1997044564A1 (fr) * | 1996-05-17 | 1997-11-27 | Andergauge Limited | Appareil de forage |
Also Published As
Publication number | Publication date |
---|---|
DE3939538C2 (fr) | 1991-09-12 |
EP0429765A3 (en) | 1992-07-22 |
NO905190D0 (no) | 1990-11-29 |
US5156222A (en) | 1992-10-20 |
CA2031093A1 (fr) | 1991-05-31 |
NO905190L (no) | 1991-05-31 |
DE3939538A1 (de) | 1991-06-13 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): BE FR GB NL |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
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AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): BE FR GB NL |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: EASTMAN TELECO COMPANY |
|
17P | Request for examination filed |
Effective date: 19921222 |
|
17Q | First examination report despatched |
Effective date: 19931027 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19950919 |