Conocophillips Company

Taxon Biosciences Inc.

Dariusz Strapoc

Bradley James Huizinga

Adewale J Lambo

Matthew N Ashby

Christine M Clarke

Ladonna Wood

Alison Gould

Jaedong Lee

Ulrika Lidstrom

Albert G Holba

Derik W Kleibacker

Jerry H Veldhuis

Michelle Ann Pittenger

Courtney Hanna Turich

Ulrika Lidström

Lisa H Wright

Matthew Ashby

Adewale Lambo

Ulrika LIDSTRÖM

Methods and systems are provided for quantifying contributions of gas mixtures in a reservoir compartment by way of isotopic analyses. Differing thermal maturities of the different gas mixtures allow estimation of the relative quantity of each gas mixture present in a total gas mixture. Thermal maturities may be estimated by reference to isotopic analyses of each contributing gas mixture and a commingled gas mixture resulting from commingling each of the individual source gas mixtures. This method may be carried out at various depths to determine relative contributions of each gas mixture to the total gas mixture as a function of wellbore depth. Advantages of certain embodiments include, but are not limited to, higher accuracies and ease of application as compared to conventional methods.

Detection and quantification of gas mixtures in subterranean formations

This invention generally relates to natural gas and methylotrophic energy generation, bio-generated fuels and microbiology. In alternative embodiments, the invention provides nutrient amendments and microbial compositions, e.g., consortia, that are both specifically optimized to stimulate methanogenesis, or for 'methylotrophic' or other conversions. In alternative embodiments, the invention provides methods to develop nutrient amendments and microbial compositions that are both specifically optimized to stimulate methanogenesis in a given reservoir. The invention also provides methods for the evaluation of potentially damaging biomass formation and scale precipitation resulting from the addition of nutrient amendments. In other embodiments, the invention provides methods for simulating biogas in sub-surface conditions using a computational model.

Compositions and methods for identifying and modifying carbonaceous compositions

This invention generally relates to natural gas and methylotrophic energy generation, bio-generated fuels and microbiology. In alternative embodiments, the invention provides nutrient amendments and microbial compositions that are both specifically optimized to stimulate methanogenesis, or 'methylotrophic' conversion. Additionally, the invention provides methods to develop nutrient amendments and microbial compositions that are both specifically optimized to stimulate methanogenesis in a given reservoir. The invention also provides methods for the evaluation of potentially damaging biomass formation and scale precipitation resulting from the addition of nutrient amendments. In another embodiment, the invention provides methods for simulating biogas in sub-surface conditions using a computational model.

In situ methanogenesis modeling and risk analysis

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Houston, TX, United States of America

Dariusz Strapoc