B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
26/162, 137/63
B65D 53/00 (2006.01) C23C 14/08 (2006.01) C23C 14/16 (2006.01) E21B 34/06 (2006.01) E21B 41/02 (2006.01)
Patent
CA 1271684
? - ? ABSTRACT An apparatus and method for retarding mineral formation, buildup and plugging in check valves utilized with downhole reciprocating rod pumps wherein the interior surfaces of the check valve are coated with ions of metals or metal oxides that are dissimilar to the metal of the valve substrate, either by ion plating or by ion implantation.
511450
Hahn Granville
Permian Research Corporation
Riches Mckenzie & Herbert Llp
LandOfFree
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