公开(公告)号：US20190323301A1

公开(公告)日：2019-10-24

申请号：US16466036

申请日：2017-12-13

Applicant: MHWIRTH AS

Inventor： LARS POEHNER

IPC: E21B19/00 ,  E21B17/01 ,  B63B35/44 ,  B66D1/52

Abstract: A wireline tensioner includes at least one sheave, a first accumulator unit, a second accumulator unit, a hydraulic distribution system, and a hydraulic cylinder unit which is operatively connected to the at least one sheave, to the first accumulator unit and to the second accumulator unit via the hydraulic distribution system. The first accumulator unit receives hydraulic fluid from the hydraulic distribution system at a first hydraulic pressure. The second accumulator unit receives the hydraulic fluid from the hydraulic distribution system at a second hydraulic pressure. The first hydraulic pressure is lower than the second hydraulic pressure.

公开(公告)号：US20170009537A1

公开(公告)日：2017-01-12

申请号：US15121774

申请日：2015-02-17

Applicant: MHWIRTH AS

Inventor： LARS POEHNER

IPC: E21B19/00 ,  E21B19/22

CPC classification number: E21B19/006 ,  E21B19/09 ,  E21B19/22

Abstract: A compensating cylinder unit for compensating relative movements between a stationary frame and a compensated frame which includes parts of a coiled tubing compensation system. The compensating cylinder unit includes a fluid reservoir configured to connect to the stationary frame, and a compensating cylinder configured to connect to the compensated frame, to at least partly enclose the fluid reservoir, and to be in a fluid communication with the fluid reservoir to allow for an axial displacement of the compensating cylinder relative to the fluid reservoir.

Abstract translation: 用于补偿固定框架和补偿框架之间的相对运动的补偿缸单元，其包括连续油管补偿系统的部件。 补偿缸单元包括被配置为连接到固定框架的流体储存器和配置成连接到经补偿的框架的补偿缸，至少部分地封闭流体储存器，并且与流体储存器流体连通以允许 用于补偿缸相对于流体储存器的轴向位移。