Patent ID: 7896978

Claim:
A system for cleaning, treating, and/or stimulating a wellbore reservoir having a pre-determined downhole pressure using a treating fluid, the system comprising: a surface-mounted assembly comprising a heater device, a charge pump connected to an intake side of the heater device, a fluid flow volume controller configured to regulate a volume of fluid admitted into the heater, a discharge pump connected to an outlet side of the heater device, a means for regulating a discharge flow and a discharge pressure operationally connected to the discharge pump, said heater device being configured for heating the treating fluid to a predetermined temperature; said charge pump being configured for forcing the treating fluid through the heater device; said fluid flow volume controller being mounted between the heater device and the charge pump; said discharge pump being configured to increase the pressure of the treating fluid, said discharge pump being connectable to an inlet side of the reservoir being cleaned, treated and/or stimulated; and wherein the means for regulating the discharge flow and the discharge pressure is configured to regulate the amount of treating fluid delivered under pressure into the wellbore to overcome the pressure existing in a reservoir tubing downhole.