Communication and lock open safety valve system and method
作者： Thomas S. Myerley , Doug A. Lowry
DOI:
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摘要: A downhole system includes a safety valve system. The tubular housing having hydraulic control chamber, and lock-open communication sleeve within the housing. is longitudinally movable with respect to has end portion configured abut enact movement of flow tube. further radial sort alignable chamber. method communicating locking open using sleeve.
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