Importance

Loading Importance Indicators...

Abstract

A process for removing contaminating solids from high density, salt type aqueous drilling/completion/packer fluid prior to its introduction into a well bore. A small effective (e.g., 0.5% volume) of an aliphatic alcohol, 2-ethyl hexanol, and a surface active chemical aid, the amide reaction product of a fatty monobasic acid (oleic) with a secondary amine diethanolamine are thoroughly intermixed into the fluid. After the solids agglomerate, the solids are separated from the fluid before introduction in a solids-free condition into the well bore. The fluid may have a density as high as 19 pounds per gallon and be a brine formed of the sodium, calcium or zinc salts with chloride or bromide anions.

Loading the Abstract Image...

First Claim