Water-based drilling fluids for reduction of water adsorption an

Details Water-based drilling fluids for reduction of water adsorption an Water-based drilling fluids for reduction of water adsorption an

1995-03-01

1997-06-03

Springer, David B.

Earth boring, well treating, and oil field chemistry

Well treating

Contains organic component

507129, 507136, 507139, 507110, C07K 700, C09K 702

Patent

active

056354584

ABSTRACT:
The present invention provides a water-based drilling fluid that reduces water adsorption and hydration of argillaceous rocks. The drilling fluid comprises a glycol with a molecular weight of less than about 200, an organic cationic material such as salts of choline or an organic salt of potassium, a filtration control agent, a viscosifier and water.

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