Efficiency of polyglycerol with other additives to remove water from shale
AssigneeShell Oil Company
InventorsArthur Herman Hale, Eric van Oort
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Abstract
A composition and process for improving the osmotic efficiency of a shale during the drilling of a well with a drilling fluid containing polyglyerol with other additives.
Claims2
A process for improving the osmotic efficiency of shale during the drilling of a well comprising drilling the well with a drilling fluid comprising polyglycerol and the product of glycols which have been ethoxylated and/or propoxylated, wherein the polyglycerol and the product of glycols are present in a ratio of about 1:1.
A drilling fluid for improving the osmotic efficiency of shale during the drilling of a well comprising polyglycerol and the product of glycols which have been ethoxylated and/or propoxylated, wherein the polyglycerol and the product of glycols are present in a ratio of about 1:1.
Dependencies are inferred from the claim text.