Title:
CONTROLLED STOP FOR A PUMP
Document Type and Number:
WIPO Patent Application WO/2018/075034
Kind Code:
A8
Abstract:
Certain conditions require powering down an engine driving a pump. During the down sequence the pump may continue pumping servicing fluid which may not be desirable. Activating one or more control valves may throttle or prevent the servicing fluid from being pumped from the pump during the power down sequence. Activation of an input control valve may introduce pressurized fluid into a cylinder of the pump extending a rod to force or maintain a suction valve in an open position. While the suction valve is in the open position, the stroke of the plunger may not create enough pressure to pump the servicing fluid causing the servicing fluid to flow between a fluid header and a chamber of the pump. Activation of an output control valve may divert servicing fluid pumped from the pump to a reservoir instead of to the desired location.
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Inventors:
HUNTER TIM (US)
STEPHENSON STANLEY (US)
SURJAATMADJA JIM (US)
COSKREY BILLY (US)
REID JOHN (US)
STEPHENSON STANLEY (US)
SURJAATMADJA JIM (US)
COSKREY BILLY (US)
REID JOHN (US)
Application Number:
PCT/US2016/057732
Publication Date:
May 31, 2018
Filing Date:
October 19, 2016
Export Citation:
Assignee:
HALLIBURTON ENERGY SERVICES INC (US)
International Classes:
F04B15/02; F04B49/06; F04B53/10
Attorney, Agent or Firm:
PENNINGTON, Tammy, M. et al. (US)
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