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Title: Varying properties along lengths of temperature limited heaters

Abstract

A system for heating a subsurface formation is described. The system includes an elongated heater in an opening in the formation. The elongated heater includes two or more portions along the length of the heater that have different power outputs. At least one portion of the elongated heater includes at least one temperature limited portion with at least one selected temperature at which the portion provides a reduced heat output. The heater is configured to provide heat to the formation with the different power outputs. The heater is configured so that the heater heats one or more portions of the formation at one or more selected heating rates.

Inventors:
 [1];  [2];  [3];  [4]
  1. Bellaire, TX
  2. Houston, TX
  3. Katy, TX
  4. Richmond, TX
Issue Date:
Research Org.:
Shell Oil Company (Houston, TX)
Sponsoring Org.:
USDOE
OSTI Identifier:
1019395
Patent Number(s):
7986869
Application Number:
US Patent Application 11/409,562
Assignee:
Shell Oil Company (Houston, TX)
Patent Classifications (CPCs):
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Vinegar, Harold J, Xie, Xueying, Miller, David Scott, and Ginestra, Jean Charles. Varying properties along lengths of temperature limited heaters. United States: N. p., 2011. Web.
Vinegar, Harold J, Xie, Xueying, Miller, David Scott, & Ginestra, Jean Charles. Varying properties along lengths of temperature limited heaters. United States.
Vinegar, Harold J, Xie, Xueying, Miller, David Scott, and Ginestra, Jean Charles. Tue . "Varying properties along lengths of temperature limited heaters". United States. https://www.osti.gov/servlets/purl/1019395.
@article{osti_1019395,
title = {Varying properties along lengths of temperature limited heaters},
author = {Vinegar, Harold J and Xie, Xueying and Miller, David Scott and Ginestra, Jean Charles},
abstractNote = {A system for heating a subsurface formation is described. The system includes an elongated heater in an opening in the formation. The elongated heater includes two or more portions along the length of the heater that have different power outputs. At least one portion of the elongated heater includes at least one temperature limited portion with at least one selected temperature at which the portion provides a reduced heat output. The heater is configured to provide heat to the formation with the different power outputs. The heater is configured so that the heater heats one or more portions of the formation at one or more selected heating rates.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {7}
}

Patent:

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