发明名称 |
CONTROL VALVE TIMING |
摘要 |
<p>A method for lifting drilling mud from subsea to a drilling vessel which a pump having a body with a chamber, and a bladder in the chamber. The bladder attaches to the body and defines water and mud sides in the chamber. A mud inlet valve allows mud into the mud side of the chamber; which moves the bladder into the water side and urges water in the water side from the chamber and through a water exit valve. Pressurized water enters the chamber through a water inlet valve, which in turn pushes the bladder and mud from the chamber through a mud exit valve. The bladder separates the mud and water as it reciprocates in the chamber. Water and/or mud inlet valves are opened before associated exit valves to reduce pressure fluctuations in the fluid lines.</p> |
申请公布号 |
WO2014143803(A1) |
申请公布日期 |
2014.09.18 |
申请号 |
WO2014US27928 |
申请日期 |
2014.03.14 |
申请人 |
HYDRIL USA MANUFACTURING LLC |
发明人 |
NGUYEN, DAT, MANH;DUMAN, AHMET;DANIEL, DEVON |
分类号 |
F04B19/00;F04B43/06;F04B43/073 |
主分类号 |
F04B19/00 |
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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