FLUID FORMULATIONS FOR CLEANING OIL-BASED OR SYNTHETIC OIL-BASED MUD FILTER CAKES

摘要

A treatment composition may contact an oil-based mud (OBM) filter cake formed over at least part of a wellbore for incorporating more oil and/or filter cake particles into the treatment composition as compared to an otherwise identical filter cake absent the treatment composition. The treatment composition may include, but is not limited to, a surfactant, an aqueous-based fluid, an agent, an optional second acid, and combinations thereof. The agent may be or include long chain alcohols, phenol derivatives, fatty esters, a first acid, and combinations thereof. The first acid may be or include citric acid, oleic acid, tartaric acid, stearic acid, linoleic acid, linolenic acid, aromatic dicarboxylic acids, oxalic acid, malonic acid, succinic acid, glutaric acid, boric acid, adipic acid, a diacid, a triacid, a tetraacid, and combinations thereof.