CA849390A - Apparatus and method for automatically controlling fluid pressure in a well bore - Google Patents

Apparatus and method for automatically controlling fluid pressure in a well bore

Info

Publication number
CA849390A
CA849390A CA849390A CA849390DA CA849390A CA 849390 A CA849390 A CA 849390A CA 849390 A CA849390 A CA 849390A CA 849390D A CA849390D A CA 849390DA CA 849390 A CA849390 A CA 849390A
Authority
CA
Canada
Prior art keywords
fluid pressure
well bore
automatically controlling
controlling fluid
automatically
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
CA849390A
Inventor
J. Dower Ethell
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.)
Warren Automatic Tool Co
Original Assignee
Warren Automatic Tool Co
Publication date
Application granted granted Critical
Publication of CA849390A publication Critical patent/CA849390A/en
Expired legal-status Critical Current

Links

CA849390A Apparatus and method for automatically controlling fluid pressure in a well bore Expired CA849390A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA849390T

Publications (1)

Publication Number Publication Date
CA849390A true CA849390A (en) 1970-08-18

Family

ID=36333582

Family Applications (1)

Application Number Title Priority Date Filing Date
CA849390A Expired CA849390A (en) Apparatus and method for automatically controlling fluid pressure in a well bore

Country Status (1)

Country Link
CA (1) CA849390A (en)

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