| abstract |
The present disclosure refers to well bottom fluid additives that include a clay, a hydroxylated polymer, a cation and water. In addition, the disclosure refers to well bottom fluids, which include drilling fluids, spacers, cements and proppant supply fluids, such as well bottom fluid additives, and methods for using such fluids. The well bottom fluid additive can have any of a variety of functions in the well bottom fluid and can confer any of a variety of properties, such as salt tolerance or desired viscosities, even at bottom temperatures of well raised. |