NO308324B1 - Test valve for use in a drill pipe test string, and method for pulling up the test string - Google Patents

Test valve for use in a drill pipe test string, and method for pulling up the test string

Info

Publication number
NO308324B1
NO308324B1 NO940385A NO940385A NO308324B1 NO 308324 B1 NO308324 B1 NO 308324B1 NO 940385 A NO940385 A NO 940385A NO 940385 A NO940385 A NO 940385A NO 308324 B1 NO308324 B1 NO 308324B1
Authority
NO
Norway
Prior art keywords
test
string
pulling
test string
drill pipe
Prior art date
Application number
NO940385A
Other languages
Norwegian (no)
Other versions
NO940385L (en
NO940385D0 (en
Inventor
Graeme Forbes Coutts
Jeffrey Charles Edwards
Original Assignee
Expro North Sea 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
Priority claimed from GB919117119A external-priority patent/GB9117119D0/en
Application filed by Expro North Sea Ltd filed Critical Expro North Sea Ltd
Publication of NO940385L publication Critical patent/NO940385L/en
Publication of NO940385D0 publication Critical patent/NO940385D0/en
Publication of NO308324B1 publication Critical patent/NO308324B1/en

Links

NO940385A 1991-08-08 1994-02-07 Test valve for use in a drill pipe test string, and method for pulling up the test string NO308324B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919117119A GB9117119D0 (en) 1991-08-08 1991-08-08 Tubing test valve
PCT/GB1992/001351 WO1993003255A2 (en) 1991-08-08 1992-07-23 Tubing test valve

Publications (3)

Publication Number Publication Date
NO940385L NO940385L (en) 1994-02-07
NO940385D0 NO940385D0 (en) 1994-02-07
NO308324B1 true NO308324B1 (en) 2000-08-28

Family

ID=26299374

Family Applications (1)

Application Number Title Priority Date Filing Date
NO940385A NO308324B1 (en) 1991-08-08 1994-02-07 Test valve for use in a drill pipe test string, and method for pulling up the test string

Country Status (1)

Country Link
NO (1) NO308324B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO20070060L (en) * 2007-01-08 2008-07-09 Hpi As Device with downhole two-way pressure relief valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO20070060L (en) * 2007-01-08 2008-07-09 Hpi As Device with downhole two-way pressure relief valve

Also Published As

Publication number Publication date
NO940385L (en) 1994-02-07
NO940385D0 (en) 1994-02-07

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