EP0486750A3 - Target-directed drilling rod - Google Patents

Target-directed drilling rod Download PDF

Info

Publication number
EP0486750A3
EP0486750A3 EP19910106101 EP91106101A EP0486750A3 EP 0486750 A3 EP0486750 A3 EP 0486750A3 EP 19910106101 EP19910106101 EP 19910106101 EP 91106101 A EP91106101 A EP 91106101A EP 0486750 A3 EP0486750 A3 EP 0486750A3
Authority
EP
European Patent Office
Prior art keywords
target
drilling rod
directed drilling
directed
rod
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Withdrawn
Application number
EP19910106101
Other languages
German (de)
Other versions
EP0486750A2 (en
Inventor
Klaus-Dieter Schwidder
Udo Weber
Paul Braun
Heinz Wallussek
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.)
Bergwerksverband GmbH
Schwing Hydraulik Elektronik GmbH and Co
Original Assignee
Bergwerksverband GmbH
Schwing Hydraulik Elektronik GmbH and 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 Bergwerksverband GmbH, Schwing Hydraulik Elektronik GmbH and Co filed Critical Bergwerksverband GmbH
Publication of EP0486750A2 publication Critical patent/EP0486750A2/en
Publication of EP0486750A3 publication Critical patent/EP0486750A3/en
Withdrawn legal-status Critical Current

Links

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
    • E21B7/062—Deflecting the direction of boreholes the tool shaft rotating inside a non-rotating guide travelling with the shaft
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/02—Determining slope or direction
    • E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
  • Geophysics (AREA)
  • Earth Drilling (AREA)
EP19910106101 1990-11-23 1991-04-17 Target-directed drilling rod Withdrawn EP0486750A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904037262 DE4037262C2 (en) 1990-11-23 1990-11-23 Target boring bar
DE4037262 1990-11-23

Publications (2)

Publication Number Publication Date
EP0486750A2 EP0486750A2 (en) 1992-05-27
EP0486750A3 true EP0486750A3 (en) 1992-10-28

Family

ID=6418776

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910106101 Withdrawn EP0486750A3 (en) 1990-11-23 1991-04-17 Target-directed drilling rod

Country Status (2)

Country Link
EP (1) EP0486750A3 (en)
DE (1) DE4037262C2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6470974B1 (en) 1999-04-14 2002-10-29 Western Well Tool, Inc. Three-dimensional steering tool for controlled downhole extended-reach directional drilling
US7975392B1 (en) * 2010-03-10 2011-07-12 National Oilwell Varco, L.P. Downhole tool
CN114233194B (en) * 2021-12-02 2023-02-28 中煤科工集团西安研究院有限公司 Coal mine underground split type hydraulic deflecting drilling tool combination and drilling method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3870101A (en) * 1973-04-25 1975-03-11 Baker Oil Tools Inc Removable subsea production test valve assembly
DE3000239A1 (en) * 1980-01-05 1981-07-16 Bergwerksverband Gmbh, 4300 Essen Boring direction controller for coal mining machine - uses inclination transducers to control hydraulic actuators which shift orientation of internal driving shaft relative to casing
DE3325962A1 (en) * 1983-07-19 1985-01-31 Bergwerksverband Gmbh, 4300 Essen TARGET DRILL ROD FOR ROTATING DRILL ROD WITH RINSING CHANNEL FOR UNDERGROUND OPERATION

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988010355A1 (en) * 1987-06-16 1988-12-29 Preussag Aktiengesellschaft Device for guiding a drilling tool and/or pipe string

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3870101A (en) * 1973-04-25 1975-03-11 Baker Oil Tools Inc Removable subsea production test valve assembly
DE3000239A1 (en) * 1980-01-05 1981-07-16 Bergwerksverband Gmbh, 4300 Essen Boring direction controller for coal mining machine - uses inclination transducers to control hydraulic actuators which shift orientation of internal driving shaft relative to casing
DE3325962A1 (en) * 1983-07-19 1985-01-31 Bergwerksverband Gmbh, 4300 Essen TARGET DRILL ROD FOR ROTATING DRILL ROD WITH RINSING CHANNEL FOR UNDERGROUND OPERATION

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
BBC-NACHRICHTEN Bd. 55, Nr. 1/2, 1973, MANNHEIM Seiten 3 - 9; ROSENBERG: 'Schaltende Regler' *
ELEKTROTECHNIK. Bd. 53, Nr. 1/2, 20. Januar 1971, WURZBURG DE Seiten 18 - 21; KÜNZEL: 'Regelkreise mit Zweipunktreglern' *

Also Published As

Publication number Publication date
DE4037262C2 (en) 1994-05-05
EP0486750A2 (en) 1992-05-27
DE4037262A1 (en) 1992-05-27

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