Sand control employing halogenated, oil soluble hydrocarbons

摘要: This invention relates to a method for treating wells completed in subterranean formations which contain unconsolidated sand particles, so as form permeable barrier will permit the flow of liquids therethrough while restraining particles into well bore. The comprises saturating adjacent bore be treated with petroleum having high asphaltic content and thereafter contacting solvent capable solubilizing non-asphaltic fractions precipitating or causing deposition bituminous portions petroleum. A heated fluid such steam is injected formation cause solidification materials effectively binds grains together porous mass restrain movement said upon subsequently placing on production. Suitable precipitation portion include halogen substituted, oil soluble hydrocarbons at least one substituent less than 6 carbon atoms per molecule, methyl chloroform. Steam mixture non-condensable gas nitrogen, air are then dehydrate otherwise solidify precipitated material.