Prevent spouting simple and easy wellhead assembly
(B, ) the utility model relates to a gusher accuse equipment technical field is prevented in the well drilling, a prevent spouting simple and easy wellhead assembly, it is including boring the well casing head, flange and oil pipe cock, it is hollow T type to bore the well casing head, the lower par...
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Main Authors | , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
06.04.2016
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Subjects | |
Online Access | Get full text |
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