DE69401713T2 - Bohrrohr zum richtbohren - Google Patents

Bohrrohr zum richtbohren

Info

Publication number
DE69401713T2
DE69401713T2 DE69401713T DE69401713T DE69401713T2 DE 69401713 T2 DE69401713 T2 DE 69401713T2 DE 69401713 T DE69401713 T DE 69401713T DE 69401713 T DE69401713 T DE 69401713T DE 69401713 T2 DE69401713 T2 DE 69401713T2
Authority
DE
Germany
Prior art keywords
outside diameter
pct
end portions
middle portion
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
DE69401713T
Other languages
English (en)
Other versions
DE69401713D1 (de
Inventor
Arthur Deacey Stewart
Karl Schmidt
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.)
Stable Services Ltd
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10735536&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69401713(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of DE69401713D1 publication Critical patent/DE69401713D1/de
Publication of DE69401713T2 publication Critical patent/DE69401713T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
  • Drilling And Boring (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
DE69401713T 1993-05-15 1994-05-09 Bohrrohr zum richtbohren Expired - Fee Related DE69401713T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB939310029A GB9310029D0 (en) 1993-05-15 1993-05-15 Improvements in or relating to drill pipe
PCT/GB1994/001001 WO1994027024A1 (en) 1993-05-15 1994-05-09 Drill pipe for directional drilling

Publications (2)

Publication Number Publication Date
DE69401713D1 DE69401713D1 (de) 1997-03-20
DE69401713T2 true DE69401713T2 (de) 1997-07-10

Family

ID=10735536

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69401713T Expired - Fee Related DE69401713T2 (de) 1993-05-15 1994-05-09 Bohrrohr zum richtbohren

Country Status (11)

Country Link
US (1) US5697460A (de)
EP (1) EP0697058B1 (de)
AT (1) ATE148771T1 (de)
AU (1) AU678829B2 (de)
CA (1) CA2162698C (de)
DE (1) DE69401713T2 (de)
DK (1) DK0697058T3 (de)
ES (1) ES2098139T3 (de)
GB (1) GB9310029D0 (de)
NO (1) NO307621B1 (de)
WO (1) WO1994027024A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9617819D0 (en) * 1996-08-27 1996-10-09 Aitken William R S A drill pipe
JP4029579B2 (ja) * 2001-03-28 2008-01-09 日立工機株式会社 セーバソー
US7845434B2 (en) * 2005-03-16 2010-12-07 Troy Lee Clayton Technique for drilling straight bore holes in the earth
US20090301785A1 (en) * 2008-06-06 2009-12-10 Arefi Bob Integrated Spiral Blade Collar
JP5035189B2 (ja) * 2008-09-10 2012-09-26 三菱マテリアル株式会社 ドリル
WO2015061502A2 (en) 2013-10-25 2015-04-30 National Oilwell Varco, L.P. Downhole hole cleaning joints and method of using same
CN105735896A (zh) * 2016-02-02 2016-07-06 中铁隧道集团一处有限公司 利用扶正器组施工超深水平钻孔的方法
US11473376B2 (en) * 2018-03-16 2022-10-18 Wwt North America Holdings, Inc Non-rotating vibration reduction sub
CA3113242A1 (en) 2018-09-21 2020-03-26 Garland Industries, Inc. Helical hardbanding
AU2022349606A1 (en) 2021-09-23 2024-04-18 Wwt North America Holdings, Inc. Non-rotating drill pipe protector tool having multiple types of hydraulic bearings

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3250578A (en) * 1964-01-27 1966-05-10 Land And Marine Rental Company Well apparatus
CA1154430A (en) * 1981-08-21 1983-09-27 Paul Knutsen Integral blade cylindrical gauge stabilizer-reamer
US4436158A (en) * 1981-12-15 1984-03-13 Carstensen Kenneth J Releasable drill string device and method
EP0138603A3 (de) * 1983-10-13 1986-04-23 Texas Forge & Tool Limited Gestänge und Rohre
US4674580A (en) * 1985-08-27 1987-06-23 Atlantic Richfield Company Means for reducing bending stresses in drill pipe
US4811800A (en) * 1987-10-22 1989-03-14 Homco International Inc. Flexible drill string member especially for use in directional drilling
US4874045A (en) * 1988-12-27 1989-10-17 Clayton Charles H Straight hole drilling method and assembly

Also Published As

Publication number Publication date
NO307621B1 (no) 2000-05-02
AU678829B2 (en) 1997-06-12
EP0697058A1 (de) 1996-02-21
NO954596L (no) 1995-11-14
DK0697058T3 (da) 1997-08-18
ES2098139T3 (es) 1997-04-16
GB9310029D0 (en) 1993-06-30
WO1994027024A1 (en) 1994-11-24
DE69401713D1 (de) 1997-03-20
US5697460A (en) 1997-12-16
CA2162698A1 (en) 1994-11-24
AU6684794A (en) 1994-12-12
ATE148771T1 (de) 1997-02-15
NO954596D0 (no) 1995-11-14
CA2162698C (en) 2004-07-27
EP0697058B1 (de) 1997-02-05

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8339 Ceased/non-payment of the annual fee
8327 Change in the person/name/address of the patent owner

Owner name: STABLE SERVICES LTD., ABERDEEN, SCHOTTLAND, GB

8381 Inventor (new situation)

Free format text: STEWART, ARTHUR DEACEY, ABERDEEN, GB SCHMIDT, KARL, ABERDEEN, GB

8370 Indication related to discontinuation of the patent is to be deleted
8339 Ceased/non-payment of the annual fee