Drilling fluid compositions include a base fluid, at least one additive chosen from an
emulsifier, weighting material, fluid-loss additive, viscosifier, or alkali compound, and from …

Drilling fluid compositions and methods for using drilling fluid compositions are provided
with enhanced anti-bit ball ing properties that includes an aqueous base fluid, one or more …

E21B 33/14(2006.01) CO9K 8/24(2006.01) E21B 21/00(2006.01) CO9K 8/22(2006.01)
CO9K 8/467(2006.01) C10M 173/00(2006.01) C04B 24/02(2006.01) C04B 28/02(2006.01) …

In one embodiment, a retarded acid system comprises an aqueous acid and a retarding
surfactant. The aqueous acid may comprise from 5 wt.% to 25 wt.% of a strong acid, that is …

Embodiments are directed to a lubricant package for water based drilling fluids. The
lubricant package includes water, a polyethylene glycol, and a lubricating agent. The …

In one embodiment, a spacer fluid may comprise a base fluid and a surfactant package. The
surfactant package may comprise one or more surfactants, where the surfactant package …

(OCH, CHZ) n-OH, where R'is a hydrocarbyl group having from 8 to 22 carbon atoms and n
is from 1 to 8. The ethoxylated alcohol compound has a Hydrophilic-Lipophilic Balance …

Anti-bit balling drilling fluids and methods of making and using drilling fluids are provided.
The anti-bit balling drill ing fluid contains water, a clay-based component, and at least one of …

Spacer fluids include an emulsion, a surfactant package, and at least one additive that
modifies the rheology of the spacer fluid, the density of the spacer fluid, or both. The …

Spacer fluids include an emulsion, a surfactant package, and at least one additive that
modifies the rheology of the spacer fluid, the density of the spacer fluid, or both. The …