GB9811040D0 - Apparatus for the protection of instrumentation placed within a drill string - Google Patents

Apparatus for the protection of instrumentation placed within a drill string

Info

Publication number
GB9811040D0
GB9811040D0 GBGB9811040.6A GB9811040A GB9811040D0 GB 9811040 D0 GB9811040 D0 GB 9811040D0 GB 9811040 A GB9811040 A GB 9811040A GB 9811040 D0 GB9811040 D0 GB 9811040D0
Authority
GB
United Kingdom
Prior art keywords
protection
drill string
instrumentation placed
instrumentation
drill
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.)
Granted
Application number
GBGB9811040.6A
Other versions
GB2329654A (en
GB2329654B (en
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.)
Scientific Drilling International Inc
Original Assignee
Scientific Drilling International 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
Priority claimed from US08/337,731 external-priority patent/US5520246A/en
Application filed by Scientific Drilling International Inc filed Critical Scientific Drilling International Inc
Publication of GB9811040D0 publication Critical patent/GB9811040D0/en
Publication of GB2329654A publication Critical patent/GB2329654A/en
Application granted granted Critical
Publication of GB2329654B publication Critical patent/GB2329654B/en
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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
    • E21B47/017—Protecting measuring instruments

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Geophysics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
GB9811040A 1994-11-14 1995-10-31 A hold down for use in a drill collar in a well Expired - Fee Related GB2329654B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/337,731 US5520246A (en) 1994-11-14 1994-11-14 Multi-mode cushioning an instrument suspended in a well
GB9522264A GB2294960B (en) 1994-11-14 1995-10-31 Apparatus for the protection of instrumentation placed within a drill string

Publications (3)

Publication Number Publication Date
GB9811040D0 true GB9811040D0 (en) 1998-07-22
GB2329654A GB2329654A (en) 1999-03-31
GB2329654B GB2329654B (en) 1999-05-26

Family

ID=26308019

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9811040A Expired - Fee Related GB2329654B (en) 1994-11-14 1995-10-31 A hold down for use in a drill collar in a well

Country Status (1)

Country Link
GB (1) GB2329654B (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU170996B (en) * 1974-11-08 1977-10-28 Koolaj Foldgazbanyaszati Apparatus for carrying out measurements during the drilling in subsurface ledges on the bottom of borehole and/or in any depth
US4750560A (en) * 1987-04-13 1988-06-14 Otis Engineering Corporation Device for releasably connecting well tools
US5095977A (en) * 1990-04-10 1992-03-17 Ford Michael B Coupon holder for corrosion test downhole in a borehole
GB2276898B (en) * 1990-04-17 1995-01-04 Teleco Oilfield Services Inc Nuclear logging apparatus

Also Published As

Publication number Publication date
GB2329654A (en) 1999-03-31
GB2329654B (en) 1999-05-26

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19991031