公开(公告)号：US3982589A

公开(公告)日：1976-09-28

申请号：US578358

申请日：1975-05-16

申请人： Phillip M. Wilson ,  John W. Erickson ,  Charles C. Nelson ,  Vitolis Budrys

发明人： Phillip M. Wilson ,  John W. Erickson ,  Charles C. Nelson ,  Vitolis Budrys

IPC分类号： E21B43/12 ,  E21B43/34 ,  E21B43/00

CPC分类号： E21B43/129 ,  E21B43/34

摘要： A system is provided for pumping high pressure power liquid for a downhole hydraulic pump for producing fluids from an oil well. The power liquid is mixed in the well with the produced well fluid and is conveyed to a phase separation vessel at the surface where gas, oil and water are gravity separated. Power liquid is withdrawn from this vessel to the inlet of a combined pitot pump and centrifugal cleaner. This combined pump and cleaner has a stationary housing and a rotatable cleaning chamber. A stationary pitot tube in the rotatable housing provides pressurized clean power liquid for the suction inlet of a high pressure multiplex piston pump that feeds power liquid to the downhole pump. The rotating chamber has passages at its periphery for discharging dirty liquid which drains from the housing and is pumped to a production flow line. Fluids from the phase separation vessel are also recovered through the production flow line.Also, means are provided for interrupting pumping in case of excessive or deficient flow of dirty liquid from the cleaner. Preferably the dirty liquid is pumped to the production flow line by a jet pump powered either by pressurized power liquid from the pitot tube outlet in a high pressure embodiment or by power liquid from the high pressure piston pump in a lower pressure embodiment.

摘要翻译： 提供一种用于泵送用于从油井产生流体的井下液压泵的高压动力液体的系统。 动力液体在井中与产生的井液混合，并被输送到气体，油和水被重力分离的表面处的相分离容器。 动力液体从该容器中抽出到组合皮托泵和离心清洁器的入口。 该组合的泵和清洁器具有固定的壳体和可旋转的清洁室。 可旋转壳体中的固定皮托管提供用于将动力液体供给井下泵的高压多重活塞泵的吸入口的加压清洁动力液体。 旋转室在其周边具有通道，用于排出从壳体排出的脏液体，并将其泵送到生产流水线。 来自相分离容器的流体也通过生产流程线回收。