Formation Evaluation and Its Implication on Hydrocarbon Production in Imoye Field, Niger Delta

Abstract

This project was carried out using two dimensional seismic reflection data of five (inline and crossline) seismic sections and one composite log to determine the trapping style and estimate hydrocarbon reserve in M field, Niger Delta. Two hydrocarbon bearing horizons appraised were selected by well log to seismic correlation. Two growth faults and closures (simple rollover anticlines and closures against faults), which serve as reservoirs, characterized the field.

The wireline log facilitated the determination of the field’s petrophysical attributes which were used for the volumetric estimation of the hydrocarbon in the reservoirs. The first reservoir has estimated original oil in place of 120.8million barrels, original gas in place (proved) of 407million cubic feet and estimated original gas in place (possible) of 668.2million cubic feet. The second reservoir has original oil in place of 29.2million barrels and original gas in place (proved) of 2.8million cubic feet. The crest of the closures trapping the hydrocarbon was recommended for possible drilling. Integration of three dimensional seismic data and artificial neural networks is however desirable to better understand the fault communication, hydrocarbon reservoir lithofacies and their heterogeneities in the field.

Keywords: Petrophysics, seismic, prolific, production, gas cap.