dc.contributor.author | Almutairi, Khaled | |
dc.contributor.author | Knapp, Camelia | |
dc.contributor.author | Knapp, James | |
dc.contributor.author | Brantley, Duke | |
dc.contributor.author | Terry, Darrell | |
dc.contributor.editor | Daigle, Hugh | |
dc.date.accessioned | 2022-07-18T13:33:04Z | |
dc.date.available | 2022-07-18T13:33:04Z | |
dc.date.issued | 2022-05-10 | |
dc.identifier | oksd_knapp_acousticimpedance_2022 | |
dc.identifier.citation | Almutairi, K., Knapp, C., Knapp, J., Brantley, D., & Terry, D. (2022). Acoustic impedance inversions for offshore CO2 storage: South Georgia Embayment, United States. Frontiers in Energy Research, 10, Article 842015. https://doi.org/10.3389/fenrg.2022.842015 | |
dc.identifier.uri | https://hdl.handle.net/11244/335943 | |
dc.description.abstract | This study builds and expands on previous CO2 storage resource assessment studies of the southeastern offshore Atlantic margin by providing a detailed evaluation on how rock porosities and permeabilities are distributed across the Upper Cretaceous strata restricted to the South Georgia Embayment (SGE). Using legacy industry two-dimensional seismic reflection and well data, this assessment is the first application of multiple seismic inversion techniques in this area. This workflow provides a reliable and repeatable model-based inversion which gives an improved image to discriminate lithology and predict porosity. The workflow is applicable to future CO2 storage resource assessment studies elsewhere. The inversion results indicate that distinct porosity and permeability regimes are present and distributed in the Upper Cretaceous strata within the SGE. The impedance and porosity relationships show well-founded and reliable correlation. These relationships reveal low impedance coincident to the high porosity intervals which are proposed as potential reservoir intervals for CO2 storage. In addition, the result shows that the Upper Cretaceous strata have two main potential reservoirs in the lower part. These are overlain by a thick impermeable interval, mostly shale, which has high impedance, low porosity, and low permeability and extends within the SGE. This result is in agreement with a previous study that also proposed two significant storage reservoirs for CO2 in the Upper Cretaceous strata. Since porosity distribution is estimated using multiple methods, it follows the trends of seismic signature and structures of the Upper Cretaceous strata. The extracted values of porosity, ranging from 15 to 36%, and permeability, ranging from 1 to 100 mD, are close to the measured values from the well core data at the Upper Cretaceous strata interval. | |
dc.format | application/pdf | |
dc.language | en_US | |
dc.publisher | Frontiers | |
dc.relation.ispartof | Frontiers in Energy Research, 10 | |
dc.rights | This material has been previously published. In the Oklahoma State University Library's institutional repository this version is made available through the open access principles and the terms of agreement/consent between the author(s) and the publisher. The permission policy on the use, reproduction or distribution of the material falls under fair use for educational, scholarship, and research purposes. Contact Digital Resources and Discovery Services at lib-dls@okstate.edu or 405-744-9161 for further information. | |
dc.title | Acoustic impedance inversions for offshore CO2 storage: South Georgia Embayment, United States | |
dc.date.updated | 2022-07-17T03:07:44Z | |
osu.filename | oksd_knapp_acousticimpedance_2022.pdf | |
dc.description.peerreview | Peer reviewed | |
dc.identifier.doi | 10.3389/fenrg.2022.842015 | |
dc.description.department | Geology | |
dc.type.genre | Article | |
dc.type.material | Text | |
dc.subject.keywords | offshore atlantic | |
dc.subject.keywords | southeast georgia embayment (sge) | |
dc.subject.keywords | upper cretaceous strata | |
dc.subject.keywords | model-based inversion | |
dc.subject.keywords | co2 geologic storage | |
dc.rights.license | http://creativecommons.org/licenses/by-nc-nd/4.0/ | |
dc.identifier.author | ScopusID: 57766687200 (Almutairi, K) | |
dc.identifier.author | ORCID: 0000-0001-9678-6199 (Knapp, C) | |
dc.identifier.author | ScopusID: 10640824100 | 57337858700 (Knapp, C) | |
dc.identifier.author | ORCID: 0000-0001-8174-5159 (Knapp, J) | |
dc.identifier.author | ScopusID: 7201886733 (Knapp, J) | |
dc.identifier.author | ScopusID: 57225233676 (Brantley, D) | |
dc.identifier.author | ScopusID: 57204027923 (Terry, D) | |