发明名称 BOHRLOCHFLUSSSTEUERWERKZEUG UND -VERFAHREN
摘要 <p>A downhole flow control tool 1, includes a flow control member in the form of a sleeve 8, and comprises a main body 2 having a longitudinal internal bore 3 extending therethrough, an upper end 4 having a box section 6, and a lower end 5 with a pin section 7, which enable connection of the tool 1 into a work string. The flow control sleeve 8 is mounted for movement relative to the bore 3 between at least a closed and one of several open positions. The tool body 2 includes several flow ports extending through a wall of the body 2 and spaced around a circumference of the body 2. The tool provides multiple fluid flow control options for directing and splitting fluid flow for example during a drilling operation to clear settled cuttings by suitable location of the tool.</p>
申请公布号 DE602008004654(D1) 申请公布日期 2011.03.03
申请号 DE20086004654T 申请日期 2008.05.21
申请人 SPECIALISED PETROLEUM SERVICES GROUP LTD. 发明人 TELFER, GEORGE
分类号 E21B21/10;E21B23/00;E21B34/14 主分类号 E21B21/10
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