NO20012070D0 - Sammentrekkbar borkrone - Google Patents

Sammentrekkbar borkrone

Info

Publication number
NO20012070D0
NO20012070D0 NO20012070A NO20012070A NO20012070D0 NO 20012070 D0 NO20012070 D0 NO 20012070D0 NO 20012070 A NO20012070 A NO 20012070A NO 20012070 A NO20012070 A NO 20012070A NO 20012070 D0 NO20012070 D0 NO 20012070D0
Authority
NO
Norway
Prior art keywords
drill bit
collapsible drill
collapsible
bit
drill
Prior art date
Application number
NO20012070A
Other languages
English (en)
Other versions
NO20012070L (no
Inventor
Gavin T Mcleod
Original Assignee
Dht Technologies Ltd
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 Dht Technologies Ltd filed Critical Dht Technologies Ltd
Publication of NO20012070D0 publication Critical patent/NO20012070D0/no
Publication of NO20012070L publication Critical patent/NO20012070L/no

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
    • E21B10/00—Drill bits
    • E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
    • E21B10/66—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe the cutting element movable through the drilling pipe and laterally shiftable

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
NO20012070A 1998-10-29 2001-04-27 Tilbaketrekkbart borekronesystem NO20012070L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPP6838A AUPP683898A0 (en) 1998-10-29 1998-10-29 Retractable drill bit system
PCT/AU1999/000878 WO2000026498A1 (en) 1998-10-29 1999-10-13 Retractable drill bit system

Publications (2)

Publication Number Publication Date
NO20012070D0 true NO20012070D0 (no) 2001-04-27
NO20012070L NO20012070L (no) 2001-06-15

Family

ID=3811052

Family Applications (1)

Application Number Title Priority Date Filing Date
NO20012070A NO20012070L (no) 1998-10-29 2001-04-27 Tilbaketrekkbart borekronesystem

Country Status (6)

Country Link
US (1) US6155360A (no)
EP (1) EP1133614A1 (no)
AU (1) AUPP683898A0 (no)
CA (1) CA2348297A1 (no)
NO (1) NO20012070L (no)
WO (1) WO2000026498A1 (no)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6536520B1 (en) 2000-04-17 2003-03-25 Weatherford/Lamb, Inc. Top drive casing system
CA2356194C (en) * 1998-12-22 2007-02-27 Weatherford/Lamb, Inc. Procedures and equipment for profiling and jointing of pipes
US7730965B2 (en) 2002-12-13 2010-06-08 Weatherford/Lamb, Inc. Retractable joint and cementing shoe for use in completing a wellbore
USRE42877E1 (en) 2003-02-07 2011-11-01 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
US6870356B2 (en) * 2003-04-11 2005-03-22 S-T-N Holdings, Inc. Method and apparatus for vertical voltage potential mapping
US7650944B1 (en) 2003-07-11 2010-01-26 Weatherford/Lamb, Inc. Vessel for well intervention
GB2424432B (en) 2005-02-28 2010-03-17 Weatherford Lamb Deep water drilling with casing
CA2651966C (en) 2006-05-12 2011-08-23 Weatherford/Lamb, Inc. Stage cementing methods used in casing while drilling
US8276689B2 (en) 2006-05-22 2012-10-02 Weatherford/Lamb, Inc. Methods and apparatus for drilling with casing
FI20085643A0 (fi) * 2008-06-26 2008-06-26 Atlas Copco Rotex Ab Oy Menetelmä ja poraulaitteisto poraukseen
US9051799B2 (en) * 2012-09-06 2015-06-09 Baker Hughes Incorporated Preload and centralizing device for milling subterranean barrier valves
WO2015130396A1 (en) * 2014-02-28 2015-09-03 Longyear Tm, Inc. Core drilling tools with retractably lockable driven latch mechanisms
US10718164B2 (en) * 2015-04-08 2020-07-21 Dreco Energy Services Ulc Downhole vibration assembly and method of using same
NO341673B1 (en) * 2016-12-23 2017-12-18 Sapeg As Downhole stuck object removal tool
CN112255014B (zh) * 2020-11-19 2024-01-30 武汉轻工大学 一种采集钻头及采集装置
CN114837630B (zh) * 2022-05-26 2023-08-25 中煤科工集团西安研究院有限公司 一种煤矿井下碎软煤层定向长钻孔快速下筛管系统和方法
KR102586126B1 (ko) * 2023-04-26 2023-10-10 (주)지중공영 무진동 할암 연속천공에 의한 자유면 형성을 위한 천공장치

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3603413A (en) * 1969-10-03 1971-09-07 Christensen Diamond Prod Co Retractable drill bits
CA1264316A (en) * 1985-07-09 1990-01-09 Andrew H. Bennett, (Deceased) Wire line core barrel
US5271472A (en) * 1991-08-14 1993-12-21 Atlantic Richfield Company Drilling with casing and retrievable drill bit
CN1046783C (zh) * 1993-06-16 1999-11-24 唐·霍尔技术公司 地面钻机切削装置的就地更换设备

Also Published As

Publication number Publication date
NO20012070L (no) 2001-06-15
WO2000026498A1 (en) 2000-05-11
AUPP683898A0 (en) 1998-11-26
US6155360A (en) 2000-12-05
EP1133614A1 (en) 2001-09-19
CA2348297A1 (en) 2000-05-11

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Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application