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UW Technologies Available for Licensing|Wyoming Research Products Center

Tracing Coalbed Natural Gas - Coproduced Water Using Stable Isotopes of Carbon

 

Description of Technology:

This technology measures δ13C of dissolved inorganic carbon (DIC) in groundwater to provide a low-cost diagnostic tool to trace water sources and to understand groundwater interactions. This allows users to “fingerprint” the co-produced water.

Applications:

Primary applications of this technology are: (1) to verify that during the depressurization process groundwater is withdrawn from the targeted coal seam and not from adjacent coal-free aquifers; and (2) to track the fate of the co-produced water as it moves into surface drainages and infiltrates and interacts with near surface aquifers or is re-injected into subsurface formations.

Features and Benefits:

This technology allows users to distinguish waters produced from different coal zones. Additionally, this method is a cost-effective tool that can be used to provide information on lateral continuity of coalbed natural gas (CBNG) reservoirs. This technology can also provide a means to detect or measure the degree of microbial activity during enhanced recovery efforts like CO2 sequestration and microbial inoculation of coal seams.

For More Information Please Contact:

Davona Douglass, J.D.
Director
(307) 766-2509
dkdoug@uwyo.edu

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Tech ID

08-052

Inventors

Sharma, Shikha

Patent Status

Filed - US Patent Application

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