发明名称 Bottom-hole pump fluid flow controller
摘要 Oil produced by an oil well pump is increased by connecting a fluid flow controller, such as a choke nipple, with the fluid inlet end portion of an oil well pump. The controller serves to maintain a static head of fluid adjacent the pump inlet which permits expansion and dissipation of gas entering the pump fluid passageway thus substantially eliminating pump gas lock.
申请公布号 US4715794(A) 申请公布日期 1987.12.29
申请号 US19860912873 申请日期 1986.09.29
申请人 VANHOOSER, NEAL E. 发明人 VANHOOSER, NEAL E.
分类号 E21B43/12;E21B43/38;F04B47/00;F04B53/10;(IPC1-7):F04B21/02 主分类号 E21B43/12
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