CA820088A - Wellhead closure apparatus - Google Patents

Wellhead closure apparatus

Info

Publication number
CA820088A
CA820088A CA820088A CA820088DA CA820088A CA 820088 A CA820088 A CA 820088A CA 820088 A CA820088 A CA 820088A CA 820088D A CA820088D A CA 820088DA CA 820088 A CA820088 A CA 820088A
Authority
CA
Canada
Prior art keywords
closure apparatus
wellhead closure
wellhead
closure
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
CA820088A
Inventor
B. Newman Nicholas
L. Geer Ronald
W. Foster Kenneth
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.)
Shell USA Inc
Original Assignee
Kenneth W Foster
Nicholas B Newman
Ronald L Geer
Shell Oil Co
Publication date
Application granted granted Critical
Publication of CA820088A publication Critical patent/CA820088A/en
Expired legal-status Critical Current

Links

CA820088A Wellhead closure apparatus Expired CA820088A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA820088T

Publications (1)

Publication Number Publication Date
CA820088A true CA820088A (en) 1969-08-12

Family

ID=36297470

Family Applications (1)

Application Number Title Priority Date Filing Date
CA820088A Expired CA820088A (en) Wellhead closure apparatus

Country Status (1)

Country Link
CA (1) CA820088A (en)

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