DK0904480T3 - Automatisk selvaktiverende stopkrave - Google Patents

Automatisk selvaktiverende stopkrave

Info

Publication number
DK0904480T3
DK0904480T3 DK97937968T DK97937968T DK0904480T3 DK 0904480 T3 DK0904480 T3 DK 0904480T3 DK 97937968 T DK97937968 T DK 97937968T DK 97937968 T DK97937968 T DK 97937968T DK 0904480 T3 DK0904480 T3 DK 0904480T3
Authority
DK
Denmark
Prior art keywords
stop collar
automatic self
activating stop
activating
self
Prior art date
Application number
DK97937968T
Other languages
English (en)
Inventor
Samuel P Hawkins
Original Assignee
Frank S Inr Inc
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 Frank S Inr Inc filed Critical Frank S Inr Inc
Application granted granted Critical
Publication of DK0904480T3 publication Critical patent/DK0904480T3/da

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Clamps And Clips (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Earth Drilling (AREA)
DK97937968T 1996-06-20 1997-06-20 Automatisk selvaktiverende stopkrave DK0904480T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/670,779 US5706894A (en) 1996-06-20 1996-06-20 Automatic self energizing stop collar
PCT/US1997/012132 WO1997048268A2 (en) 1996-06-20 1997-06-20 Automatic self energizing stop collar

Publications (1)

Publication Number Publication Date
DK0904480T3 true DK0904480T3 (da) 2004-05-03

Family

ID=24691838

Family Applications (1)

Application Number Title Priority Date Filing Date
DK97937968T DK0904480T3 (da) 1996-06-20 1997-06-20 Automatisk selvaktiverende stopkrave

Country Status (5)

Country Link
US (1) US5706894A (da)
EP (1) EP0904480B1 (da)
CA (1) CA2258950A1 (da)
DK (1) DK0904480T3 (da)
WO (1) WO1997048268A2 (da)

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US7228901B2 (en) 1994-10-14 2007-06-12 Weatherford/Lamb, Inc. Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells
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US7159619B2 (en) * 2003-10-21 2007-01-09 Frank's International, Inc. Thread protector for use on pin end of oilfield tubulars
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CN111561276B (zh) * 2020-06-10 2021-08-13 中国石油天然气股份有限公司 一种连续油管用分瓣式卡瓦扶正保护器
US11542761B2 (en) * 2020-08-14 2023-01-03 Centergenics, LLC Tapered thread tubular gripping device
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Also Published As

Publication number Publication date
WO1997048268A2 (en) 1997-12-24
US5706894A (en) 1998-01-13
EP0904480A2 (en) 1999-03-31
WO1997048268A3 (en) 1998-02-12
EP0904480B1 (en) 2004-01-28
CA2258950A1 (en) 1997-12-24
EP0904480A4 (en) 2000-12-06

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