发明名称 Downhole draw down pump and method
摘要 An apparatus for drawing down a fluid level in a wellbore. The apparatus comprises a first tubular disposed within the wellbore so that a wellbore annulus is formed. The apparatus further includes an annular nozzle operatively attached to the first tubular, and wherein the annular nozzle comprises: an annular adapter; and, a suction tube that extends from the annular member into an inner portion of the first tubular. The apparatus further comprises a second tubular concentrically disposed within the first tubular so that a micro annulus is formed therein. The apparatus may further contain a jetting device for delivering an injected medium injected from the micro annulus into the wellbore annulus, and a stabilizer that stabilizes the second tubular within the first tubular. A method of drawing down a fluid level is also disclosed.
申请公布号 US2005051340(A1) 申请公布日期 2005.03.10
申请号 US20030659663 申请日期 2003.09.10
申请人 WILLIAMS DANNY T. 发明人 WILLIAMS DANNY T.
分类号 E21B17/18;E21B43/12;(IPC1-7):E21B43/00 主分类号 E21B17/18
代理机构 代理人
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