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Title: Induction heaters used to heat subsurface formations

Abstract

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.

Inventors:
 [1];  [1]
  1. Houston, TX
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1040777
Patent Number(s):
8162059
Application Number:
12/250,357
Assignee:
Shell Oil Company (Houston, TX)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Nguyen, Scott Vinh, and Bass, Ronald M. Induction heaters used to heat subsurface formations. United States: N. p., 2012. Web.
Nguyen, Scott Vinh, & Bass, Ronald M. Induction heaters used to heat subsurface formations. United States.
Nguyen, Scott Vinh, and Bass, Ronald M. Tue . "Induction heaters used to heat subsurface formations". United States. https://www.osti.gov/servlets/purl/1040777.
@article{osti_1040777,
title = {Induction heaters used to heat subsurface formations},
author = {Nguyen, Scott Vinh and Bass, Ronald M},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {4}
}

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