Surfactant waterflood method for the recovery of oil

Surfactant waterflood oil recovery method

Surfactant waterflood oil recovery process

Surfactant waterflooding oil recovery method

Surfactant waterflooding oil recovery method

Surfactant waterflooding with graded salinity drive for oil reco

Surfactant waterflooding with hydrocarbon slug

Surfactant-based fluid loss control agents for surfactant...

Surfactant-polymer composition and method of enhanced oil recove

Surfactant-stabilized foams for enhanced oil recovery

Surfactants for hydraulic fractoring compositions

Surge anchor assembly

Surge chamber assembly and method for perforating in dynamic...

Surge pressure reduction apparatus with volume compensation...

Surge reduction bypass valve

Suspension and porous pack for reduction of particles in subterr

Suspension of concentrated particulate additives containing...

Sweep improvement in enhanced oil recovery

Swellable elastomer-based apparatus, oilfield elements...

Swellable elastomer-based apparatus, oilfield elements...