Drilling fluid additive and process therewith

Details Drilling fluid additive and process therewith Drilling fluid additive and process therewith

1998-10-07

2000-09-26

Tucker, Philip

Earth boring, well treating, and oil field chemistry

Earth boring

Contains organic component

507123, 507145, 507222, 507225, 507229, 507277, 523130, C09K 702

Patent

active

061242454

ABSTRACT:
A composition is provided which comprises a polymer comprising repeat units derived from an unsaturated amide, an N-vinyl lactam, and optionally, a vinyl acid. Also provided is a water-based fluid composition which can be used as drilling fluid wherein the composition comprises calcium chloride and the polymer. Further providing is a process for using a water-based fluid wherein the process comprises contacting a subterranean formation with the water-based fluid composition disclosed above to effect the control of fluid loss of the water-based fluid composition.

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