Active cable for wellbore heating and distributed...

Alarm means for use with apparatus protecting a device situated

Apparatus and method for production of organic products from ker

Apparatus and methods to dissipate heat in a downhole tool

Apparatus for cryothermal fracturing of rock formations

Apparatus for enhanced recovery of viscous oil deposits

Apparatus for hydrocarbon recovery from earth strata

Apparatus for installing condition-sensing means in subterranean

Apparatus for realization of rock exploitation method based on t

Apparatus for recovery of petroleum from petroleum impregnated m

Assembly for introducing steam into an oil-bearing stratum

Cable head

Catalytic combustor having spiral shape

Completion system for downhole steam generator

Conductor-in-conduit heat sources for in situ thermal...

Containment of pressurized fluid jets

Corrosion inhibition apparatus for downhole electrical heating

Direct firing downhole steam generator

Down hole drilling fluid heating apparatus and method

Down hole oil well heater employing electro-thermal paper