Microbial process for selectively plugging a subterranean format

Microorganism enhancement with earth loop heat exchange systems

Minimizing environmental effects in production and use of coal

Mobility control of aqueous fluids in porous media

Nutrient injection method for subterranean microbial processes

Oil recovery process using improved thickened aqueous flooding l

Oil recovery processes

Oil recovery using modified heteropolysaccharides in buffered br

Phosphate compound that is used in a microbial profile modificat

Process and installation for the flooding of petroleum deposits

Process for enhanced recovery of crude oil from oil wells...

Process for stimulating microbial activity in a...

Process for transporting particles in a porous medium

Recovery of oil from oil reservoirs

Recovery of oil from oil reservoirs

Remote operation wire line core sampling device

Situ microbial plugging process for subterranean formations

Situ mining of fossil fuel containing inorganic matrices

Stabilizing polysaccharide solutions for tertiary oil recovery a

Surfactant combinations and enhanced oil recovery method employi