发明名称 STAGE TOOL FOR WELLBORE CEMENTING
摘要 <p>A stage tool and a method for stage cementing a wellbore annulus. The method includes: running into a wellbore toward bottom hole with a tubing string to a position in the wellbore; setting the tubing string in the wellbore to create the wellbore annulus between the tubing string and a wall of the wellbore; opening a cementing port through a side pocket structure positioned alongside the tubing string; pumping cement through the cementing port; and closing the cementing port to hold the cement in the annulus.</p>
申请公布号 CA2867871(A1) 申请公布日期 2013.09.26
申请号 CA20122867871 申请日期 2012.05.08
申请人 PACKERS PLUS ENERGY SERVICES INC. 发明人 THEMIG, DANIEL JON;COON, ROBERT JOE
分类号 E21B33/16;E21B33/14 主分类号 E21B33/16
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