A CO.sub.2 drive process for oil recovery employing an alcohol e

Adding lignosulfonate to caustic floods to shift optimal salinit

Agents for petroleum recovery processes

Alkali-enhanced steam foam oil recovery process

Alkaline polymer hot water oil recovery process

Alkaline water flooding with a precipitation inhibitor for enhan

Alkoxylated asphalt as sacrificial agents in oil recovery proces

Alkoxylated asphalts as sacrificial agents in oil recovery proce

Alkoxylated surfactant system for heavy oil reservoirs

Alkylated oxidized lignins as surfactants

Amino resin modified xanthan polymer foamed with a chemical blow

Amino resins crosslinked polymer gels for permeability profile c

Aminoalkylated polyacrylamide aldehyde gels, their preparation a

Apparatus and method for increasing well production using...

Apparatus and method for supplying fluid into different zones in

Apparatus for enhanced bioremediation of underground contaminant

Application of a stabilized polymer gel to an alkaline...

Application of multiphase generation process in a CO.sub.2 flood

Application of N,N-dialkylamides to reduce precipitation of asph

Applications of waste gas injection into natural gas reservoirs