Impact of Integrated Biogeomechanics on CO2 Storage in Depleted Hydrocarbon Reservoirs: Insights from Wolfcamp Shale

O. Kolawole, M. Kumar, I. Ispas, K. Huffman

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

The depleted shale reservoirs have shown promising potentials for permanent geological CO2 storage (GCS) either as a caprock or as reservoir storage units. In this study, we experimentally investigated the impact of localized biogeomechanical process on geological CO2 storage in a depleted heterogeneous reservoir, using subsurface samples from Wolfcamp shale formation and a microbial strain. We first obtained the mechanical properties of shale samples using the scratch test method, in addition to the measurement of their initial porosity and permeability. We treated the shale core samples with a bacteria strain at distinct conditions. Further, we obtain the post-treatment mechanical properties and the new porosity and permeability measurements of the microbiallytreated shale samples. Finally, we analyzed the effect of the modified properties on long-term CO2 storage in the Wolfcamp shale formation. Our results indicated that in depleted Wolfcamp shale reservoirs, microbially-altered properties could decrease the porosity, and enhance long-term caprock integrity and the security of stored CO2

Original languageEnglish
Title of host publication55th U.S. Rock Mechanics / Geomechanics Symposium 2021
PublisherAmerican Rock Mechanics Association (ARMA)
Pages297-307
Number of pages11
ISBN (Electronic)9781713839125
StatePublished - 2021
Event55th U.S. Rock Mechanics / Geomechanics Symposium 2021 - Houston, Virtual, United States
Duration: Jun 18 2021Jun 25 2021

Publication series

Name55th U.S. Rock Mechanics / Geomechanics Symposium 2021
Volume1

Conference

Conference55th U.S. Rock Mechanics / Geomechanics Symposium 2021
Country/TerritoryUnited States
CityHouston, Virtual
Period06/18/2106/25/21

Fingerprint

Dive into the research topics of 'Impact of Integrated Biogeomechanics on CO2 Storage in Depleted Hydrocarbon Reservoirs: Insights from Wolfcamp Shale'. Together they form a unique fingerprint.

Cite this