International Journal of Science and Technology

International Journal of Science and Technology>> Volume 7, Number 9, September 2017

International Journal of Science and Technology

Planktic Foraminiferal Biozonation and Correlation of XY-1 Field, Offshore Western Niger Delta, Nigeria

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Author(s) S. O. Obaje, E. A. Okosun
On Pages 281-286
Volume No. 3
Issue No. 5
Issue Date May, 2013
Publishing Date May, 2013
Keywords Planktic foraminifera, biozonation, well correlation, western Niger Delta, Nigeria


This study identified and analyzed the planktic foraminifera and their abundance in 550 ditch cutting samples retrieved from the strata penetrated by five wells in the XY-1 Field offshore western Niger Delta. The foraminiferal data were used to date, zone, and correlate the strata. The biozones erected for the field are Globigerinoides subquadratus, Globigerinoides obliquus, and Globigerinoides extremus which correspond respectively to the N13-N14, N14-N15, and N15-N16 of Blow's planktic foraminiferal zonation scheme. The biozones range in age from Middle to Late Miocene. Petrographic studies coupled with the gamma ray log analytical data indicate the presence of two lithostratigraphic units in the XY-1 Field: the paralic Agbada Formation and the continental Benin Formation units.

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