发明名称 Produced sand gravel pack process
摘要 <p>A borehole completion method treats a formation (40) surrounding a borehole (10) with a chemical treatment that alters how formation particulates interact. A standalone screen (30) deploys downhole in the borehole (either before or after the treatment) on a downhole string (20). When fluid is produced, formation particulates treated with the chemical treatment agglomerate in the annulus surrounding the screen in permeable structures (42). This can be especially when the standalone screen is useful in a cased hole having perforations. The chemical treatment includes an inner salt adapted to neutralize the zeta potential (i.e., electrokinetic potential) of the formation particulates so they aggregate into one or more permeable structures in the annulus.</p>
申请公布号 EP2722481(A2) 申请公布日期 2014.04.23
申请号 EP20130189173 申请日期 2013.10.17
申请人 WEATHERFORD/LAMB INC. 发明人 VAN PETEGEM, RONALD
分类号 E21B43/08;E21B43/04;E21B43/25 主分类号 E21B43/08
代理机构 代理人
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