发明名称 Sealing cap for debris chamber of a downhole debris removal tool
摘要 <p>Sealing means 30, 40 for debris chambers 11 of a debris extraction tool. The end caps for the debris chamber has a cylindrical body sealed at one end and open at the other end with the open end connectable to an end of the debris enclosure 11. The caps 30 & 40 may connect to the top or bottom of the receptacle 11 to prevent debris spilling from it during removal from a wellbore. The end seals 30 & 40 may have drainage holes which can be selectively opened. The upper sealing means 30 may seal a flow tube within the chamber 11. The method for dismantling a debris extraction tool where there may be a plurality of connected debris chambers.</p>
申请公布号 GB2485392(A) 申请公布日期 2012.05.16
申请号 GB20100019164 申请日期 2010.11.12
申请人 M-I DRILLING FLUIDS U.K. LIMITED 发明人 GEORGE TELFER
分类号 E21B27/00;E21B19/00;E21B21/01;E21B31/00 主分类号 E21B27/00
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