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Molten salt as a heat transfer fluid for heating a subsurface formation

A technology of underground formations and molten salts, which is applied in the direction of production fluids, drilling compositions, and liquid hydrocarbon mixtures, and can solve problems such as uneconomical and production problems

Inactive Publication Date: 2010-03-31
SHELL INT RES MAATSCHAPPIJ BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are still many hydrocarbon-bearing formations from which hydrocarbons, hydrogen and / or other products cannot be economically produced

Method used

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  • Molten salt as a heat transfer fluid for heating a subsurface formation
  • Molten salt as a heat transfer fluid for heating a subsurface formation
  • Molten salt as a heat transfer fluid for heating a subsurface formation

Examples

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Embodiment Construction

[0034] The following description generally relates to systems and methods for processing hydrocarbons within a formation. The formation can be treated to produce hydrocarbon products, hydrogen and other products.

[0035] "Alternating current (AC)" means a time-varying electrical current that changes direction substantially sinusoidally. AC creates a skin effect current in a ferromagnetic conductor.

[0036] The "Curie temperature" is the temperature above which a ferromagnetic material loses all of its ferromagnetic properties. In addition to losing all ferromagnetic properties above the Curie temperature, ferromagnetic materials begin to lose their ferromagnetic properties when increasing current is passed through them.

[0037] "Fluid pressure" is the pressure exerted by the fluid in the formation. "Lithostatic pressure" (sometimes called "lithostatic stress") is the pressure within a formation equal to the weight of overlying rock material per unit area. "Hydrostatic p...

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Abstract

A heating system for a subsurface formation includes a conduit located in an opening in the subsurface formation. An insulated conductor is located in the conduit. A material is in the conduit betweena portion of the insulated conductor and a portion of the conduit. The material may be a salt. The material is a fluid at operating temperature of the heating system. Heat transfers from the insulated conductor to the fluid, from the fluid to the conduit, and from the conduit to the subsurface formation.

Description

technical field [0001] The present invention generally relates to heating methods and heating systems for producing hydrocarbons, hydrogen, and / or other products from various subterranean formations, such as hydrocarbon-bearing formations. Background technique [0002] Hydrocarbons obtained from subterranean formations are frequently used as energy sources, as feedstocks and as consumer products. Concerns about the depletion of available hydrocarbon sources and concerns about the overall decline in the quality of produced hydrocarbons have led to the development of methods to more efficiently recover, process and / or use available hydrocarbon sources. In situ methods can be used to remove hydrocarbon materials from subterranean formations. It may be desirable to alter the chemical and / or physical properties of hydrocarbon materials in subterranean formations to allow easier removal of the hydrocarbon materials from the subsurface. Chemical and physical changes may include i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B36/00
CPCE21B36/04E21B43/2401C10G1/02Y10T29/49083E21B43/243E21B47/0228E21B43/24C09K8/845C09K8/86C10G1/008C10G1/04C10G1/042E21B43/16
Inventor S·V·源H·J·文格尔
Owner SHELL INT RES MAATSCHAPPIJ BV
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