A Method for Foaming a Hydrocarbon Drilling Fluid and for Producing Light Weight Hydrocarbon Fluids

摘要

#$%^&*AU2006202080B220111117.pdf#####3067AQ ABSTRACT A hydrocarbon drilling fluid system is disclosed including a hydrocarbon fluid and a foaming composition, where the foaming composition includes a polymer, a gelling 5 agent and its cross-linking agent, an optional foaming agent, or mixtures or combinations thereof. Uses of this drilling fluid system in a variety of downhole application are also disclosed.