Claims
- 1. 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.
- 2. 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.
Parent Case Info
This is a continuation of application Ser. No. 08/372,799, filed Dec. 23, 1994 now abandoned.
US Referenced Citations (9)
Continuations (1)
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Number |
Date |
Country |
Parent |
372799 |
Dec 1994 |
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