Patent ID: 11959633
Assignee: EN-FAB INC.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  E | IPC E  F

Claim 10:
11. A steam supply system for a wellbore comprising:
a once-through steam generator having a wet steam outlet;
a steam separator having a separation vessel with a wet steam inlet in fluid communication with the wet steam outlet of the once-through steam generator, a dry saturated steam outlet and a saturated condensate outlet;
a superheater having a tube bundle with a dry saturated steam inlet and a superheated steam outlet, wherein the dry saturated steam inlet is in fluid communication with the dry saturated steam outlet of the steam separator;
a subcooler having a vessel with a tube bundle disposed therein, a saturated condensate inlet in fluid communication with the tube bundle, a subcooled condensate outlet in fluid communication with the tube bundle, a cooling fluid inlet disposed in the vessel and a cooling fluid outlet disposed in the vessel, wherein the saturated condensate inlet of the subcooler is in fluid communication with the saturated condensate outlet of the steam separator; and
a steam mixing vessel having a chamber with one or more nozzles disposed in the chamber, a superheated steam inlet in fluid communication with the superheated steam outlet of the superheater; and a process steam outlet in fluid communication with a wellbore tool; wherein the subcooled condensate outlet of the subcooler is in fluid communication with the one or more nozzles of the steam mixing vessel.