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IJSTR >> Volume 7 - Issue 5, May 2018 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

Entropy Concept In Determining Reservoir Continuity: A Case Study Of An Onshore Field In The Niger Delta.

[Full Text]



Kelechi Azubuike-Ijomah, Maxwell A. Ijomah



Entropy concept, Type B symmetrical, Hattori plot, and Lateral continuity.



The entropy concept was introduced to determine the degree of randomness of the lithofacies in succession using the pre-depositional (E(pre)) and post-depositional (E(post)) entropy system of an onshore field in the Niger Delta. The whole sedimentation process followed the type B symmetrical Hattori plot. It is interpreted as bypassing of sediments, forming a thickening and thinning sequence of sediments which is attributed to fluctuations and changing of environment of deposition as the flow pattern changes from deltaic to shallow marine environment. The broad random degree and lateral continuity of sedimentation process showed that the cross-bedded coarse grained sandstone (SCC) and parallel laminated mudstone (MPL) facies have the lowest lateral continuity, while the planar/parallel laminated sandstone (SPL) has the highest lateral continuity.



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