Sacrificial agents for enhanced oil recovery
Salinity tolerant surfactant oil recovery process
Salinity tolerant surfactant oil recovery process
Salt stable lubricant for water base drilling fluids
Saltwater and hard water bentonite mud
Saturated brine well treating fluids and additives therefore
Scale deposition inhibitor
Scale inhibitors
Scale removal treatment
Scale removal treatment
Scavenging hydrogen sulfide in an oil well
Scavenging oxygen from aqueous systems
Sealing wells
Secondary oil recovery process using oxyalkylated additives
Secondary recovery method utilizing thickened water
Secondary recovery of oil and polymers useful for this
Secondary recovery process
Secondary recovery process
Secondary recovery process
Secondary recovery process