E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 33/13 (2006.01) E21B 21/10 (2006.01)
Patent
CA 2078421
ABSTRACT An automatic self-filling mechanism for floating equipment comprising an arm and ear adapter arrangement associated with the valve poppet of the floating equipment to selectively hold the valve poppet open to fill a casing string being cemented in a well bore.
Butterfield Charles A. II
Rogers Henry E.
Butterfield Charles A. II
Haliburton Company
Rogers Henry E.
Swabey Ogilvy Renault
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