METHODS FOR STABILIZING WATER-SENSITIVE CLAYS.

摘要

Methods of stabilizing water-sensitive clays in subterranean formations may include introducing a drill-in treatment fluid into at least a portion of a subterranean formation comprising water-sensitive minerals, where providing the drill-in treatment fluid comprises an aqueous-based fluid and a hydrophobically-modified cationic polymer; and allowing the hydrophobically- modified cationic polymer to at least partially coat the water-sensitive mineral.