Shale-gas potential from Cretaceous succession in South Africa’s orange basin: insights from integrated geochemical evaluations

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dc.contributor.authorOpuwari, Mimonitu
dc.contributor.authorYelwa, Nura Abdulmumini
dc.contributor.authorMustapha, Khairul Azlan
dc.date.accessioned2022-12-05T10:54:15Z
dc.date.available2022-12-05T10:54:15Z
dc.date.issued2022
dc.description.abstractShale sediments were collected from four Cretaceous stratigraphic units across four explorations well locations in South Africa’s Orange Basin and analysed to determine organic-matter characteristics, such as amount, quality, thermal maturity, and their viability as gas resources. The geochemical results show that the Cretaceous shales contain moderate organic quantities, as shown by TOC averagely up to 1.29%. The organic facies consist primarily of Type III kerogen, as proven alongside low hydrogen indexes between 40 and 133 mg HC/g TOC. As seen under a reflected light microscope, the dominance of such land plant-rich organic matter is in harmony with the significant amount of Vitrinite macerals. These organic sediments can produce primarily gas when they mature. The geological and geochemical properties of the organic sediments, chiefly Type III kerogen, generate both wet and dry gas, particularly when adequate thermal maturity is enhanced at deeper locations. Thus, the Orange Basin is considered promising for shale gas exploration and production.en_US
dc.identifier.citationShale-gas potential from Cretaceous succession in South Africa's Orange Basin: Insights from Integrated Geochemical Evaluations DO - 10.1080/1064119X.2022.2118647en_US
dc.identifier.urihttps://doi.org/10.1080/1064119X.2022.2118647
dc.identifier.urihttp://hdl.handle.net/10566/8229
dc.language.isoenen_US
dc.publisherTaylor & Francisen_US
dc.subjectShale gasen_US
dc.subjectsource rocksen_US
dc.subjectOrange Basinen_US
dc.titleShale-gas potential from Cretaceous succession in South Africa’s orange basin: insights from integrated geochemical evaluationsen_US
dc.typeArticleen_US

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