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公开(公告)号：US09874089B2
公开(公告)日：2018-01-23
申请号：US14765287
申请日：2013-06-06
Applicant: PETROCHINA COMPANY LIMITED
Inventor： He Liu , Xiaohan Pei , Fuchao Sun , Lichen Zheng , Qinghai Yang , Yang Gao
Abstract: A bridge concentric direct-reading testing and adjusting instrument, comprising a cable head connected to a pressure sensor; a supporting mechanism having a pair of supporting arms; a sliding power mechanism including a power motor, a spring, an impact hammer and a one-way clutch assembly, the impact hammer slidably connected to the power motor to be rotated along with rotation of the power motor, a lower end of the impact hammer detachably connected to the one-way clutch assembly, and the one-way clutch assembly connecting the supporting arms via a transmission assembly to control opening and closing of the supporting arms; a flowmeter; and an adjusting actuator including an adjusting motor, an adjusting connector and an adjusting arm, the adjusting arm used for adjusting a waterflooding flow rate through rotation of the adjusting arm.
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公开(公告)号：US09828831B2
公开(公告)日：2017-11-28
申请号：US14765191
申请日：2013-06-06
Applicant: PETROCHINA COMPANY LIMITED
Inventor： He Liu , Xiaohan Pei , Fuchao Sun , Lichen Zheng , Qinghai Yang , Yang Gao
CPC classification number: E21B34/12 , E21B34/14 , E21B43/20 , E21B2034/007
Abstract: A bridge concentric continuously adjustable water regulator comprising: an outer tube; an adjusting sleeve disposed in the outer tube; a concentric valve connected below the adjusting sleeve, with a center of circle of the concentric valve being concentric to the outer tube; a water outlet which runs through a side wall of the outer tube and is connected to the concentric valve; a lower sealed section which is disposed in the outer tube and is below the concentric valve and the water outlet; and a bridge passage disposed in the side wall of the outer tube and outside the concentric valve and the lower sealed section.
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