发明名称 APPARATUS AND METHOD FOR CREATING PRESSURE PULSES IN A WELLBORE
摘要 In accordance with a broad aspect of the present invention there is provided an apparatus for wellbore fluid treatment, comprising: a body with a lower end, an upper end, an exterior surface and an interior surface defining a long bore open at the upper end; an outlet port spaced from the upper end, the outlet port permitting the communication of fluids between the long bore and the exterior surface; and, a die in the long bore between the upper end and the outlet port, the die being substantially immovable within the long bore and having an inner open diameter in which a plug can land to create a seal in the long bore before passing through the inner open diameter.
申请公布号 US2011108276(A1) 申请公布日期 2011.05.12
申请号 US20090646826 申请日期 2009.12.23
申请人 SANJEL CORPORATION 发明人 SPENCE JEFFREY W.;GRAY JAMES K.;EPP BAILEY T.;MARTINEZ ALBERTO;ZHOU LIGUO
分类号 E21B43/26;E21B33/12 主分类号 E21B43/26
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