发明名称 Method and apparatus for testing and treating well formations
摘要 A single trip method of testing and treating a down hole formation in which conventional drill stem testing can be carried out followed by acidizing or other treatment of the formation without the need to remove the drill stem test string, the method employing a well tool in the operating tool string which allows reverse circulation to clean out the tool string following the initial drill stem test, allows the introduction of acidizing fluid into the formation and permits a second reverse circulation following acidizing and subsequent testing, the well tool being operative without the necessity for rotation of the tool string.
申请公布号 US4031957(A) 申请公布日期 1977.06.28
申请号 US19760708029 申请日期 1976.07.23
申请人 SANFORD, LAWRENCE 发明人 SANFORD, LAWRENCE
分类号 C09K8/72;E21B21/10;E21B33/12;E21B34/06;E21B43/25;E21B49/08;(IPC1-7):E21B43/00;E21B43/27;E21B47/00 主分类号 C09K8/72
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