New Publication from EGI Fellow and Ph.D. Candidate Carlos Vega Ortiz


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EGI is pleased to Congratulate Mr. Carlos Vega Ortiz on his recent publication “Analysis of mineralogy and porosity on a carbonaceous mudstone of the Pimienta Formation, western margin of the Tampico Misantla Basin, Mexico” in the Mexican Association of Petroleum Geologists Bulletin.

Carlos is from San Marcos, Hidalgo, Mexico. He is currently pursuing a Ph.D. in Chemical Engineering with the dissertation topic “Applications of mass transport in micro- to nanoporous media: Characterization of CO2 sequestration in Coalbed Methane and Carbonaceous Mudstones.”

Carlos is the recipient of the National Hydrocarbon Grant by Mexico’s National Council for Science and Technology (CONACYT) and the Ministry of Energy (SENER). Through this scholarship, Carlos completed the Masters in Petroleum Engineering at the University of Utah. He is continuing for a Ph.D. under the mentorship of Dr. John McLennan. He has previous experience in the oil and gas industry for 11 years as reservoir evaluation engineer, in onshore and offshore locations with assignments in countries such as Mexico, UK (North Sea), Libya, and Turkey, performing high profile logging operations in deepwater environments, running services like conventional logging, pressure testing, fluid sampling, sidewall coring, and seismic acquisition.

The goal of the dissertation is to evaluate two different types of reservoirs for applications in carbon capture sequestration and contributing to the global effort of reducing pollutants to the atmosphere. In Utah, a coal-fired power plant aims to capture and store flue gases in a coal-bed methane field. The CO2 has a chemical affinity to bond onto the coal inorganic structure, hence being a natural storage media for the major component in the flue gases. In Mexico, the feasibility of underground storage aiming at deep aquifers may present a solution for the severe emissions in an industrial corridor that includes four cement factories, a refinery, and a fuel-oil power plant.

The research includes the geological and structural description of the basins, the numerical model of the fluid transport, and the experimental work replicating in-situ conditions to measure the response of the rocks to the mass transport phenomena involved in the underground storage.

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Experimental work and numerical simulations performed for the dissertation work, measuring flow and storage of fluids in rock samples.

The experimental work of the dissertation required the characterization of rock samples, including source rock analysis, mineralogy, spectroscopy, and geomechanical characterization, all completed at the EGI facilities. The results from these findings were co-authored and evaluated by EGI scientists, with publications in recognized journals in Latin America. EGI provided expertise on data analysis resulting in a detailed collaborative study.

Carlos is currently working on a low permeability flow tester, which measures the combined effects of convective flow at medium porosity, diffusive phenomena for the storage capacity of gases in the rocks, and the poroelastic stresses resulting from the fluid flow and storage.

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Carlos Vega Ortiz working on in-house built laboratory equipment for the experimental work.

Vega-Ortiz, C., Richards, B., McLennan, J., Levey, R., Martínez-Romero, N., 2020. Analysis of mineralogy and porosity distribution and on a carbonate mudstone sample of Pimienta Formation in Mexico’s Tampico Misantla Basin. Bol. Asoc. Mex. Geol. Pet. LXII, 34–71, pp.36-71.