Boring or penetrating the earth – Processes – Boring with specific fluid
Patent
1989-06-29
1990-09-18
Suchfield, George A.
Boring or penetrating the earth
Processes
Boring with specific fluid
166294, 252 8512, C09K 700, C09K 702, E21B 33138
Patent
active
049571745
ABSTRACT:
Loss of drilling fluid into a subterranean formation penetrated in the drilling of a well is controlled by addition to the drilling fluid of a lost circulation material comprising petroleum coke.
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Cantu Terry S.
Kubena, Jr. Edwin
Sooter Matthew C.
Whitfill Donald L.
Collins Richard W.
Conoco Inc.
Suchfield George A.
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