IP Library Granted Patent US 8,857,506
Granted Patent B2
US 8,857,506 · App. 13/902,129 · Granted Oct 14, 2014

Alternate energy source usage methods for in situ heat treatment processes

Inventors: Francis Marion Stone, Jr. (Cut-N-Shoot, TX); Charles R. Goodwin (League City, TX); James E. Richard, Jr. (Kingwood, TX)
Assignee: Shell Oil Company
E21B43/2401G05F1/10Y10S166/902E21B36/04
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Quick Facts
Patent No.
US 8,857,506
App. No.
13/902,129
Granted
Oct 14, 2014
Kind
B2
Abstract

Systems, methods, and heaters for treating a subsurface formation are described herein. At least one method for providing power to one or more subsurface heaters is described herein. The method may include monitoring one or more operating parameters of the heaters, the intermittent power source, and a transformer coupled to the intermittent power source that transforms power from the intermittent power source to power with appropriate operating parameters for the heaters; and controlling the power output of the transformer so that a constant voltage is provided to the heaters regardless of the load of the heaters and the power output provided by the intermittent power source.

Claims (25)

1. A method for controlling power provided to one or more subsurface heaters from an intermittent power source, comprising:

monitoring one or more operating parameters of the heaters, the intermittent power source, and a transformer coupled to the intermittent power source that transforms power from the intermittent power source to power with appropriate operating parameters for the heaters; and

controlling a power output of the transformer such that a constant voltage is provided to the heaters regardless of the load of the heaters and the power output provided by the intermittent power source.

2. The method of claim 1 , further comprising controlling the power output of the transformer using at least one predictive algorithm.

3. The method of claim 1 , further comprising controlling the power output of the transformer using at least one predictive algorithm that assesses the monitored operating parameters of the heaters, the intermittent power source, and the transformer.

4. The method of claim 1 , further comprising monitoring the operating parameters of the heaters, the intermittent power source, and the transformer using one or more sensors coupled to the heaters, the intermittent power source, and the transformer.

5. The method of claim 1 , further comprising storing, for future use, load provided by the transformer that is in excess of the load required by the heaters.

6. The method of claim 1 , wherein the intermittent power source comprises a windmill.

7. The method of claim 1 , wherein the intermittent power source comprises a gas turbine.

8. The method of claim 1 , further comprising controlling the power output of the transformer in a range between about 5 megavolt amps (MVA) and about 500 MVA.

9. The method of claim 1 , further comprising automatically controlling the power provided to the heaters.

10. The method of claim 1 , further comprising automatically controlling the power provided to the heaters to within about 20% of the power required by the heaters.

11. A method for controlling power provided to one or more subsurface heaters from an intermittent power source, comprising:

providing heat to at least a portion of a subsurface formation from one or more heaters located in the subsurface formation;

monitoring one or more operating parameters of the heaters, the intermittent power source, and a transformer coupled to the intermittent power source that transforms power from the intermittent power source to power with appropriate operating parameters for the heaters; and

controlling a power output of the transformer such that a constant voltage is provided to the heaters regardless of the load of the heaters and the power output provided by the intermittent power source.

12. The method of claim 11 , further comprising controlling the power output of the transformer using at least one predictive algorithm.

13. The method of claim 11 , further comprising controlling the power output of the transformer using at least one predictive algorithm that assesses the monitored operating parameters of the heaters, the intermittent power source, and the transformer.

14. The method of claim 11 , further comprising storing, for future use, load provided by the transformer that is in excess of the load required by the heaters.

15. A method for controlling power provided to one or more subsurface heaters from an intermittent power source, comprising:

providing heat to at least a portion of a subsurface formation from one or more heaters located in one or more wellbores in the subsurface formation, wherein the provided heat mobilizes at least some hydrocarbons in the subsurface formation;

monitoring one or more operating parameters of the heaters, the intermittent power source, and a transformer coupled to the intermittent power source that transforms power from the intermittent power source to power with appropriate operating parameters for the heaters; and

controlling a power output of the transformer such that a constant voltage is provided to the heaters regardless of the load of the heaters and the power output provided by the intermittent power source.

16. The method of claim 15 , further comprising controlling the power output of the transformer using at least one predictive algorithm.

17. The method of claim 15 , further comprising automatically controlling the power provided to the heaters.

Assignments (6)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 23, 2023
From: DMCX7318 LTD
To: SALAMANDER IP HOLDINGS LLC
Reel/Frame 063147/0759 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 22, 2023
From: SALAMANDER INTERNATIONAL HOLDINGS LLC
To: DMCX7318 LTD
Reel/Frame 063141/0685 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 21, 2023
From: SALAMANDER INTERNATIONAL LLC
To: SALAMANDER INTERNATIONAL HOLDINGS LLC
Reel/Frame 063045/0760 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 13, 2023
From: SALAMANDER SOLUTIONS INC.; SALAMANDER SOLUTIONS LIMITED
To: SALAMANDER INTERNATIONAL LLC
Reel/Frame 063074/0512 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 30, 2019
From: SHELL OIL COMPANY
To: SALAMANDER SOLUTIONS INC.
Reel/Frame 049317/0371 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 26, 2013
From: STONE, FRANCIS MARION, JR.; GOODWIN, CHARLES R.; RICHARD, JAMES EUGENE, JR.
To: SHELL OIL COMPANY
Reel/Frame 031083/0132 →
Continuity (5)
Continuation 12552955 · Sep 2, 2009
Division 11788867 · Apr 20, 2007
Provisional Application 60794298 · Apr 21, 2006
Provisional Application 60853096 · Oct 20, 2006
Related Publication 20130333878A1 · Dec 19, 2013