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专利名称：Efficiency of polyglycerol with other
additives to remove water from shale
发明人：Arthur Herman Hale,Eric van Oort申请号：US08/774337申请日：19961230公开号：US05686396A公开日：19971111
摘要：A composition and process for improving the osmotic efficiency of a shaleduring the drilling of a well with a drilling fluid containing polyglyerol with otheradditives.
申请人：SHELL OIL COMPANY
代理人：Fredrik Marlowe
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