Induction heaters used to heat subsurface formations

Nguyen, Scott Vinh; Bass, Ronald M

Title: Induction heaters used to heat subsurface formations

Patent · Tue Apr 24 00:00:00 EDT 2012

OSTI ID:1040777

Nguyen, Scott Vinh ^[1]; Bass, Ronald M ^[1]

Houston, TX

A heating system for a subsurface formation includes an elongated electrical conductor located in the subsurface formation. The electrical conductor extends between at least a first electrical contact and a second electrical contact. A ferromagnetic conductor at least partially surrounds and at least partially extends lengthwise around the electrical conductor. The electrical conductor, when energized with time-varying electrical current, induces sufficient electrical current flow in the ferromagnetic conductor such that the ferromagnetic conductor resistively heats to a temperature of at least about 300.degree. C.

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Research Organization:: Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC04-94AL85000

Assignee:: Shell Oil Company (Houston, TX)

Patent Number(s):: 8,162,059

Application Number:: 12/250,357

OSTI ID:: 1040777

Country of Publication:: United States

Language:: English

References (30)

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