NIGERIAN JOURNAL OF SCIENCE AND ENVIRONMENT
Journal of the Faculties of Science and Agriculture, Delta State University, Abraka, Nigeria
ISSN: 1119-9008
DOI: 10.5987/UJ-NJSE
Email: njse@universityjournals.org
EVALUATION OF ORGANIC MATTER CONTENTS FROM DEEP WELL SAMPLES WITHIN THE UMUTU OIL FIELD, SOUTHWEST NIGERIA
DOI: 10.5987/UJ-NJSE.17.089.3 | Article Number: 71209D10 | Vol.10 (3) - December 2011
Author: Adaikpoh E. O.
Keywords: Oil well, Niger Delta, Deep section, Organic matter
Deep well samples from the Umutu oil well-2 were analyzed for the purpose of determining their organic matter contents within the zone. Thirty ditch cuttings from the borehole were sub- jected to analysis of their organic contents (TOC), total hydrocarbon (THC), nitrogen and phos- phorus contents. Evaluation of the stratigraphy indicated ten lithostratigraphic units (Zo-S2) com- posed of sandstone, sandy shale and shale within the studied field which were demarcated. The lithologic units were grouped as fair – good and good – excellent source rocks with potentials for gas and oil, and oil respectively. C/N ratio varied from 14.77-18.53 (mean=17.00) indicating that the organic matter was derived from plant remains. C/P ratios varied with depth and lower than 3900values for laminated shales.
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