发明名称 |
HYDRAULIC PUMPING SYSTEM WITH DETECTION OF FLUID IN GAS VOLUME |
摘要 |
A pumping method can include displacing a rod string with pressure applied to an actuator by a pressure source including an accumulator and a separate gas volume in communication with the accumulator. A sensor indicates whether a fluid is in the gas volume. A pumping system can include an actuator, a pump connected between the actuator and an accumulator, a hydraulic fluid contacting a gas in the accumulator, a separate gas volume in communication with the accumulator, and a sensor that detects the hydraulic fluid in the gas volume. Another pumping system can include an actuator, a pump connected between the actuator and an accumulator that receives nitrogen gas from a nitrogen concentrator assembly while a hydraulic fluid flows between the pump and the actuator, a separate gas volume in communication with the accumulator, and a sensor that detects a presence of the hydraulic fluid in the gas volume. |
申请公布号 |
CA2936322(A1) |
申请公布日期 |
2017.02.05 |
申请号 |
CA20162936322 |
申请日期 |
2016.07.15 |
申请人 |
WEATHERFORD TECHNOLOGY HOLDINGS, LLC;AMFIELDS, LP |
发明人 |
LEMBCKE, JEFFREY J.;ROBISON, CLARK E.;SCHMITT, KENNETH J. |
分类号 |
F04B47/08;E21B43/12 |
主分类号 |
F04B47/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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