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Title: Floating insulated conductors for heating subsurface formations

Abstract

A heating system for a subsurface formation includes a conduit located in a first opening in the subsurface formation. Three electrical conductors are located in the conduit. A return conductor is located inside the conduit. The return conductor is electrically coupled to the ends of the electrical conductors distal from the surface of the formation. Insulation is located inside the conduit. The insulation electrically insulates the three electrical conductors, the return conductor, and the conduit from each other.

Inventors:
;
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1149915
Patent Number(s):
8,791,396
Application Number:
12/106,065
Assignee:
Shell Oil Company (Houston, TX)
DOE Contract Number:  
AC04-94AL85000Sa
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Burns, David, and Goodwin, Charles R. Floating insulated conductors for heating subsurface formations. United States: N. p., 2014. Web.
Burns, David, & Goodwin, Charles R. Floating insulated conductors for heating subsurface formations. United States.
Burns, David, and Goodwin, Charles R. Tue . "Floating insulated conductors for heating subsurface formations". United States. https://www.osti.gov/servlets/purl/1149915.
@article{osti_1149915,
title = {Floating insulated conductors for heating subsurface formations},
author = {Burns, David and Goodwin, Charles R.},
abstractNote = {A heating system for a subsurface formation includes a conduit located in a first opening in the subsurface formation. Three electrical conductors are located in the conduit. A return conductor is located inside the conduit. The return conductor is electrically coupled to the ends of the electrical conductors distal from the surface of the formation. Insulation is located inside the conduit. The insulation electrically insulates the three electrical conductors, the return conductor, and the conduit from each other.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {7}
}

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Works referenced in this record:

Method for pumping fluids
patent-application, October 2002


Insulated conductor temperature limited heaters
patent-application, July 2004


High voltage temperature limited heaters
patent-application, July 2004


Forming wellbores using acoustic methods
patent-application, July 2004


Variable frequency temperature limited heaters
patent-application, January 2005


Systems and methods of producing a crude product
patent-application, June 2005


Variable frequency temperature limited heaters
patent-application, December 2005


Temperature limited heaters with high power factors
patent-application, December 2005


Systems and methods for producing oil and/or gas
patent-application, November 2006


Methods for Producing a Total Product in the Presence of Sulfur
patent-application, December 2006


Grouped exposed metal heaters
patent-application, June 2007


Non-ferromagnetic overburden casing
patent-application, January 2008


Methods of producing transportation fuel
patent-application, February 2008


High strength alloys
patent-application, February 2008


Method of Heating Hydrocarbons
patent-application, April 2008


Cryogenic Treatment of Gas
patent-application, August 2009


Recovering Energy from a Subsurface Formation
patent-application, October 2010


Insulated Conductor Heaters with Semiconductor Layers
patent-application, October 2011


Variable Thickness Insulated Conductors
patent-application, October 2011


Some Effects of Pressure on Oil-Shale Retorting
journal, September 1969

  • Bae, J. H.
  • Society of Petroleum Engineers Journal, Vol. 9, Issue 03
  • DOI: 10.2118/2210-PA

Evaluation of downhole electric impedance heating systems for paraffin control in oil wells
journal, January 1992

  • Bosch, F. G.; Schmitt, K. J.; Eastlund, B. J.
  • IEEE Transactions on Industry Applications, Vol. 28, Issue 1
  • DOI: 10.1109/28.120230

The Characteristics of a Low Temperature In Situ Shale Oil
conference, April 2013

  • Hill, George R.; Dougan, Paul
  • Annual Meeting of the American Institute of Mining, Metallurgical, and Petroleum Engineers
  • DOI: 10.2118/1745-MS

Monitoring oil shale retorts by off-gas alkenealkane ratios
journal, June 1980


The Thermal and Structural Properties of a Hanna Basin Coal
journal, June 1984

  • Glass, R. E.
  • Journal of Energy Resources Technology, Vol. 106, Issue 2
  • DOI: 10.1115/1.3231050

On the mechanism of kerogen pyrolysis
journal, October 1984


Electrical Heating With Horizontal Wells, The Heat Transfer Problem
conference, April 2013

  • McGee, Bruce C. W.; Vermeulen, Frederick E.
  • International Conference on Horizontal Well Technology
  • DOI: 10.2118/37117-MS

Converter-fed subsea motor drives
journal, January 1996

  • Raad, R. O.; Henriksen, T.; Raphael, H. B.
  • IEEE Transactions on Industry Applications, Vol. 32, Issue 5
  • DOI: 10.1109/28.536868

The case for frequency domain PD testing in the context of distribution cable
journal, July 2003


Retorting and Combustion Processes in Surface Oil-Shale Retorts
journal, November 1981

  • Lewis, A. E.; Braun, R. L.
  • Journal of Energy, Vol. 5, Issue 6
  • DOI: 10.2514/3.62552

Operating Laboratory Oil Shale Retorts In An In-Situ Mode
conference, April 2013

  • Sandholtz, Willis A.; Ackerman, Jay F.
  • SPE Annual Fall Technical Conference and Exhibition
  • DOI: 10.2118/6730-MS

Pyrolysis kinetics for Green River oil shale from the saline zone
journal, October 1983


Coproduction of oil and electric power from Colorado oil shale☆
journal, April 1992


Identification by 13C n.m.r. of carbon types in shale oil and their relation to pyrolysis conditions
journal, July 1984


Application of a self-adaptive detector system on a triple quadrupole MS/MS to high explosives and sulfur-containing pyrolysis gases from oil shale
journal, September 1984

  • Wong, C. M.; Crawford, R. W.
  • International Journal of Mass Spectrometry and Ion Processes, Vol. 60, Issue 1, p. 107-116
  • DOI: 10.1016/0168-1176(84)80079-8

Kinetics of oil generation from Colorado oil shale
journal, June 1978