Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase WYE configuration
Abstract
A heating system for a subsurface formation is described. The heating system includes a first heater, a second heater, and a third heater placed in an opening in the subsurface formation. Each heater includes: an electrical conductor; an insulation layer at least partially surrounding the electrical conductor; and an electrically conductive sheath at least partially surrounding the insulation layer. The electrical conductor is electrically coupled to the sheath at a lower end portion of the heater. The lower end portion is the portion of the heater distal from a surface of the opening. The first heater, the second heater, and the third heater are electrically coupled at the lower end portions of the heaters. The first heater, the second heater, and the third heater are configured to be electrically coupled in a three-phase wye configuration.
- Inventors:
-
- Bellaire, TX
- Palo Alto, CA
- Issue Date:
- Research Org.:
- Shell Oil Company (Houston, TX)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1014919
- Patent Number(s):
- 7831133
- Application Number:
- US Patent Application 11/409,523
- Assignee:
- Shell Oil Company (Houston, TX)
- Patent Classifications (CPCs):
-
C - CHEMISTRY C10 - PETROLEUM, GAS OR COKE INDUSTRIES C10L - FUELS NOT OTHERWISE PROVIDED FOR
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
- DOE Contract Number:
- AC05-00OR22725
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Vinegar, Harold J, and Sandberg, Chester Ledlie. Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase WYE configuration. United States: N. p., 2010.
Web.
Vinegar, Harold J, & Sandberg, Chester Ledlie. Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase WYE configuration. United States.
Vinegar, Harold J, and Sandberg, Chester Ledlie. Tue .
"Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase WYE configuration". United States. https://www.osti.gov/servlets/purl/1014919.
@article{osti_1014919,
title = {Insulated conductor temperature limited heater for subsurface heating coupled in a three-phase WYE configuration},
author = {Vinegar, Harold J and Sandberg, Chester Ledlie},
abstractNote = {A heating system for a subsurface formation is described. The heating system includes a first heater, a second heater, and a third heater placed in an opening in the subsurface formation. Each heater includes: an electrical conductor; an insulation layer at least partially surrounding the electrical conductor; and an electrically conductive sheath at least partially surrounding the insulation layer. The electrical conductor is electrically coupled to the sheath at a lower end portion of the heater. The lower end portion is the portion of the heater distal from a surface of the opening. The first heater, the second heater, and the third heater are electrically coupled at the lower end portions of the heaters. The first heater, the second heater, and the third heater are configured to be electrically coupled in a three-phase wye configuration.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2010},
month = {11}
}
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