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公开(公告)号：US20240218870A1
公开(公告)日：2024-07-04
申请号：US17907092
申请日：2021-03-23
申请人： SPM Oil & Gas Inc.
发明人： Chandu KUMAR , Joe Allen SUTTON , Wesley P. CLARK , John MCCRADY , Richard David PEER , Bryan WAGNER
CPC分类号： F04B53/143 , F04B53/02
摘要： An intermittent flushing plunger packing assembly is described herein. The packing assembly includes a plurality of annular seals disposed about the plunger configured to reciprocate along a linear axis within the fluid bore of the pump, and an annular packing nut disposed circumferentially about the plunger and configured to retain the plurality of annular seals and adjust a combined height of the plurality of annular seals. A selected one of the plurality of annular seals proximate to the fluid cylinder of the pump has a flushing fluid chamber in fluid communication with a flushing fluid port coupled to a first one-way check valve allowing a pressurized flushing fluid to be introduced and retained within the flushing fluid chamber and creating a fluid barrier to prevent frac fluid in the fluid cylinder from bypassing the annular seals.
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2.发明公开公开(公告)号：US20230258172A1
公开(公告)日：2023-08-17
申请号：US17650780
申请日：2022-02-11
申请人： SPM Oil & Gas Inc.
CPC分类号： F04B49/20 , F04B9/02 , E21B43/2607 , F04B2205/09
摘要： In some implementations, a powertrain for powering a fluid pump may include a power source configured to rotate a first drive shaft at an approximately constant speed. The powertrain may include a mechanical transmission. The mechanical transmission may include one or more gearboxes associated with a set of fixed gear ratios, a second drive shaft coupled to the first drive shaft, and a third drive shaft coupled to an input drive shaft of the fluid pump and configured to rotate the input drive shaft at variable speeds or with variable torque based on using different gear ratios from the set of fixed gear ratios. The powertrain may include a torque converter disposed between the first drive shaft and the second drive shaft to enable the first drive shaft to be coupled to the second drive shaft.
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公开(公告)号：US20230184238A1
公开(公告)日：2023-06-15
申请号：US17996047
申请日：2021-04-12
申请人： SPM Oil & Gas Inc.
摘要： This disclosure presents a pumping system that includes a plunger disposed in a pressure cylinder that is operable to be displaced in a suction and a discharge stroke. A packing seal is disposed between the plunger and the pressure cylinder. A valve lock is disposed separate from the pressure cylinder and houses a suction valve and a discharge valve. A conduit fluidly couples the pressure cylinder with the valve block.
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公开(公告)号：US20240011473A1
公开(公告)日：2024-01-11
申请号：US18250060
申请日：2021-07-14
发明人： Wesley P. CLARK , Chandu KUMAR , John MCCRADY , Jon FREY , Royce GERNGROSS
摘要： A linear pump assembly includes a cylinder piston disposed in a generally tubular internal cylinder chamber defined within a cylinder housing having first and second ends, a first plunger-cylinder rod securely coupled to a first end of the cylinder piston and disposed in a first generally tubular internal plunger chamber defined within a first plunger housing in linear alignment with the cylinder housing, and a second plunger-cylinder rod securely coupled to a second end of the cylinder piston and disposed in a second generally tubular internal plunger chamber defined within a second plunger housing in linear alignment with the cylinder housing and the first plunger housing. First and second fluid ends are coupled to the first and second plunger housings respectively, the first and second fluid ends each housing a suction valve and a discharge valve.
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