Invention Grant
US07690427B2 Sand plugs and placing sand plugs in highly deviated wells 有权
沙子堵塞并将沙子塞在高度偏斜的井中

Sand plugs and placing sand plugs in highly deviated wells
Abstract:
Methods of isolating portions of a subterranean formation adjacent to a highly deviated well bore having a downstream end and an upstream end and substantially filling a first zone with a sand plug comprising lightweight particulates having a specific gravity of below about 1.25 so as to substantially isolate the first zone from the second zone wherein the first zone is located closer to the downstream end of the wellbore than the second zone.
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