Title: Alternate energy source usage for in situ heat treatment processes

Abstract

Systems, methods, and heaters for treating a subsurface formation are described herein. At least one system for providing power to one or more subsurface heaters is described herein. The system may include an intermittent power source; a transformer coupled to the intermittent power source, and a tap controller coupled to the transformer. The transformer may be configured to transform power from the intermittent power source to power with appropriate operating parameters for the heaters. The tap controller may be configured to monitor and control the transformer so that a constant voltage is provided to the heaters from the transformer regardless of the load of the heaters and the power output provided by the intermittent power source.

Inventors:

Stone, Jr., Francis Marion ^[1]; Goodwin, Charles R ^[2]; Richard, Jr., James ^[3]

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+ Show Inventor Affiliations

1. (Cut-N-Shoot, TX)
2. League City, TX
3. (Kingwood, TX)

Issue Date:

Tue Mar 22 00:00:00 EDT 2011

Research Org.:

Shell Oil Company (Houston, TX)

Sponsoring Org.:

USDOE

OSTI Identifier:

1015593

Patent Number(s):

7912358

Application Number:

US Patent Application 11/788,868

Assignee:

Shell Oil Company (Houston, TX)

Patent Classifications (CPCs):

B - PERFORMING OPERATIONS B32 - LAYERED PRODUCTS B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

C - CHEMISTRY C21 - METALLURGY OF IRON C21D - MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS

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B - PERFORMING OPERATIONS B32 - LAYERED PRODUCTS B32B - LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

B32B1/08 - Tubular products
B32B15/013 - {one layer being formed of an iron alloy or steel, another layer being formed of a metal other than iron or aluminium}
B32B15/015 - {the said other metal being copper or nickel or an alloy thereof}
B32B2307/202 - Conductive
B32B2307/208 - Magnetic, paramagnetic
B32B9/002 - {comprising natural stone or artificial stone}
B32B9/045 - {of synthetic resin}

C - CHEMISTRY C21 - METALLURGY OF IRON C21D - MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS

C21D2211/001 - Austenite
C21D2211/004 - Dispersions
C21D2211/005 - Ferrite
C21D6/002 - {containing Cr
C21D6/007 - {containing Co}

C - CHEMISTRY C22 - METALLURGY C22C - ALLOYS

C22C38/02 - containing silicon
C22C38/04 - containing manganese
C22C38/10 - containing cobalt
C22C38/12 - containing tungsten, tantalum, molybdenum, vanadium, or niobium
C22C38/14 - containing titanium or zirconium
C22C38/24 - with vanadium
C22C38/28 - with titanium or zirconium
C22C38/30 - with cobalt

E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING

E21B36/04 - using electrical heaters
E21B43/2401 - {by means of electricity}

G - PHYSICS G05 - CONTROLLING G05F - SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES

G05F1/10 - Regulating voltage or current

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10S166/902 - for inhibiting corrosion or coating

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DOE Contract Number:  

ACO5-00OR22725

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

30 DIRECT ENERGY CONVERSION