LECO Analytical Study of Subsurface Tertiary Shale Offshore Niger Delta
Journal Title: IOSR Journal of Applied Geology and Geophysics (IOSR-JAGG) - Year 2018, Vol 6, Issue 5
Abstract
Leco C230 was used to determine the total organic carbon in dried and acidified subsurface tertiary shale samples in part of selected wells of offshore Niger delta. The samples is combusted at high temperature in an Oxygen rich atmosphere and converted all the carbon into carbon dioxide .The infrared detector was used to measure the mass of the carbon dioxide present and the mass is converted to percentage. The weight percentage of the carbon and sulphur in the samples were obtained. For carbon, the inorganic and organic carbon in weight percentage was summed up to give the total carbon content present in each sample. The ratio of sulphur to carbon content in each sample was obtained to provide interpretation of the depositional environment. The analysis shows that each sample has a higher carbon ratio content to sulphur in every sample analysed. The plot of sulphur carbon correlation was plotted. Sand and shale were the two lithologies present from the log interpretation, with shale occurring more. The presence of shale in the environment helped to decipher the environment as deep marine as shale is associated with high gamma count. Finally inference were made on the hydrocarbon potential of this samples with reference to past research work.
Authors and Affiliations
A. O. Aladesanmi,1, A. Olowookere, A. K Ogundana . , J. Ochai
Keywords
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