NO985639L - Multisyklus-sirkulasjonsr÷r - Google Patents

Multisyklus-sirkulasjonsr÷r

Info

Publication number
NO985639L
NO985639L NO985639A NO985639A NO985639L NO 985639 L NO985639 L NO 985639L NO 985639 A NO985639 A NO 985639A NO 985639 A NO985639 A NO 985639A NO 985639 L NO985639 L NO 985639L
Authority
NO
Norway
Prior art keywords
sirkulasjonsr
multi cycle
cycle
cycle sirkulasjonsr
Prior art date
Application number
NO985639A
Other languages
English (en)
Other versions
NO314671B1 (no
NO985639D0 (no
Inventor
Bruce Mcgarian
Lawrence Robert Barr
Original Assignee
Red Baron Oil Tools Rental
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 GBGB9612144.7A external-priority patent/GB9612144D0/en
Application filed by Red Baron Oil Tools Rental filed Critical Red Baron Oil Tools Rental
Publication of NO985639L publication Critical patent/NO985639L/no
Publication of NO985639D0 publication Critical patent/NO985639D0/no
Publication of NO314671B1 publication Critical patent/NO314671B1/no

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
    • E21B23/004—Indexing systems for guiding relative movement between telescoping parts of downhole tools
    • E21B23/006—"J-slot" systems, i.e. lug and slot indexing mechanisms
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/10—Valve arrangements in drilling-fluid circulation systems
NO19985639A 1996-06-11 1998-12-03 Multisyklus-sirkulasjonsrör NO314671B1 (no)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9612144.7A GB9612144D0 (en) 1996-06-11 1996-06-11 Multi-cycle circulating sub
GBGB9613356.6A GB9613356D0 (en) 1996-06-11 1996-06-26 Multi-cycle circulating sub
PCT/GB1997/001581 WO1997047850A1 (en) 1996-06-11 1997-06-11 Multi-cycle circulating sub

Publications (3)

Publication Number Publication Date
NO985639L true NO985639L (no) 1998-12-03
NO985639D0 NO985639D0 (no) 1998-12-03
NO314671B1 NO314671B1 (no) 2003-04-28

Family

ID=26309482

Family Applications (1)

Application Number Title Priority Date Filing Date
NO19985639A NO314671B1 (no) 1996-06-11 1998-12-03 Multisyklus-sirkulasjonsrör

Country Status (6)

Country Link
US (1) US6173795B1 (no)
EP (1) EP0904479B1 (no)
CA (1) CA2254815C (no)
GB (1) GB2314106B (no)
NO (1) NO314671B1 (no)
WO (1) WO1997047850A1 (no)

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Also Published As

Publication number Publication date
GB2314106A (en) 1997-12-17
NO314671B1 (no) 2003-04-28
GB9712155D0 (en) 1997-08-13
EP0904479B1 (en) 2001-09-19
CA2254815A1 (en) 1997-12-18
CA2254815C (en) 2005-05-31
US6173795B1 (en) 2001-01-16
GB2314106B (en) 2000-06-14
NO985639D0 (no) 1998-12-03
WO1997047850A1 (en) 1997-12-18
EP0904479A1 (en) 1999-03-31

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