发明名称 Downhole draw down pump and method
摘要 An apparatus and method for drawing down a fluid level in a wellbore which has 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.
申请公布号 US7222675(B2) 申请公布日期 2007.05.29
申请号 US20060447767 申请日期 2006.06.06
申请人 WILLIAMS DANNY T 发明人 WILLIAMS DANNY T.
分类号 E21B43/18;E21B17/18;E21B43/12;F04F5/00 主分类号 E21B43/18
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