CA760840A - Drilling with two fluids - Google Patents

Drilling with two fluids

Info

Publication number
CA760840A
CA760840A CA760840A CA760840DA CA760840A CA 760840 A CA760840 A CA 760840A CA 760840 A CA760840 A CA 760840A CA 760840D A CA760840D A CA 760840DA CA 760840 A CA760840 A CA 760840A
Authority
CA
Canada
Prior art keywords
drilling
fluids
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
CA760840A
Inventor
G. Yarbrough Jack
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
Jack G Yarbrough
Shell Oil Co
Publication date
Application granted granted Critical
Publication of CA760840A publication Critical patent/CA760840A/en
Expired legal-status Critical Current

Links

CA760840A Drilling with two fluids Expired CA760840A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA760840T

Publications (1)

Publication Number Publication Date
CA760840A true CA760840A (en) 1967-06-13

Family

ID=36197953

Family Applications (1)

Application Number Title Priority Date Filing Date
CA760840A Expired CA760840A (en) Drilling with two fluids

Country Status (1)

Country Link
CA (1) CA760840A (en)

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