%0 Journal Article
%T Enhanced Prospect Definition Using Well and 4D Seismic Data in a Niger Delta Field
%A Tamunonengiyeofori Dagogo
%A Chukwuemeka Ngozi Ehirim
%A Joseph Onukansi Ebeniro
%J International Journal of Geosciences
%P 977-990
%@ 2156-8367
%D 2016
%I Scientific Research Publishing
%R 10.4236/ijg.2016.78074
%X We carried out
time-lapse analysis in a producing Niger Delta X-field, by first investigating
the response and sensitivity of rock properties/attributes to lithology and
pore fill in 3-D cross plot domain and by Gassmann¡¯s fluid substitution
modeling. Furthermore, 4-D seismic data were inverted into acoustic impedance
volumes through model based inversion scheme. This served as input into a
multi-attribute neural network algorithm for the extraction of rock attribute
volumes based on the results of the petrophysical log analysis. Subsequently,
horizon slices of rock properties/ attributes were extracted from the inverted
seismic data and analyzed. In this way, we mapped hydrocarbon depleted wells in
the field, and identified probable by-passed hydrocarbon zones. Thus, the
integration of well and time lapse seismic (4-D) data in reservoir studies has
remarkably improved information on the reservoir economic potential, and
enhanced hydrocarbon recovery factor.
%K Base Data
%K Monitor Data
%K Inversion
%K Neural Network Analysis
%K Time-Lapse Analysis
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=69720