Alternate energy source usage for in situ heat treatment...

Apparatus for electrode heating of earth for recovery of subsurf

Combination light and a device for dispensing a volatile...

Concentric electrode DC arc systems and their use in...

Concentric electrode DC arc systems and their use in...

Control system for well stimulation apparatus with response time

Downhole heating system with separate wiring cooling and heating

Downhole radial flow steam generator for oil wells

Electrical heater

Electrical heating of mineral well deposits using downhole imped

Electrode wells for powerline-frequency electrical heating of so

Flash steam generator

Grouped exposed metal heaters

Heated power cable

Heater utilizing copper-nickel alloy core

Horizontal steam generator for oil wells

Insulated conductor temperature limited heater for...

Iterated electrodes for oil wells

Method and apparatus for oil well stimulation utilizing electric

Method for injection well stimulation