CA1033657A - Pressure operated isolation valve for use in a well testing apparatus and its method of operation - Google Patents

Pressure operated isolation valve for use in a well testing apparatus and its method of operation

Info

Publication number
CA1033657A
CA1033657A CA295,651A CA295651A CA1033657A CA 1033657 A CA1033657 A CA 1033657A CA 295651 A CA295651 A CA 295651A CA 1033657 A CA1033657 A CA 1033657A
Authority
CA
Canada
Prior art keywords
testing apparatus
isolation valve
pressure operated
well testing
operated isolation
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.)
Expired
Application number
CA295,651A
Other languages
French (fr)
Inventor
David L. Farley
Robert T. Evans
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.)
Halliburton Co
Original Assignee
Halliburton Co
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 US05/588,991 external-priority patent/US3976136A/en
Application filed by Halliburton Co filed Critical Halliburton Co
Priority to CA295,651A priority Critical patent/CA1033657A/en
Application granted granted Critical
Publication of CA1033657A publication Critical patent/CA1033657A/en
Expired legal-status Critical Current

Links

CA295,651A 1975-06-20 1978-01-25 Pressure operated isolation valve for use in a well testing apparatus and its method of operation Expired CA1033657A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA295,651A CA1033657A (en) 1975-06-20 1978-01-25 Pressure operated isolation valve for use in a well testing apparatus and its method of operation

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US05/588,991 US3976136A (en) 1975-06-20 1975-06-20 Pressure operated isolation valve for use in a well testing apparatus and its method of operation
CA243,947A CA1042785A (en) 1975-06-20 1976-01-19 Pressure operated isolation valve for use in a well testing apparatus and its method of operation
CA295,651A CA1033657A (en) 1975-06-20 1978-01-25 Pressure operated isolation valve for use in a well testing apparatus and its method of operation

Publications (1)

Publication Number Publication Date
CA1033657A true CA1033657A (en) 1978-06-27

Family

ID=27164291

Family Applications (1)

Application Number Title Priority Date Filing Date
CA295,651A Expired CA1033657A (en) 1975-06-20 1978-01-25 Pressure operated isolation valve for use in a well testing apparatus and its method of operation

Country Status (1)

Country Link
CA (1) CA1033657A (en)

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