3D Geocellular Modelling and
Reservoir Properties Quantification: A Case Study of “X-Field”,
Bamidele, F.O1, Olugbenga A. Ehinola2, Adelola
Adesida3 (1) University of Ibadan,
Nigeria, Oyo State, Nigeria (2) University of Ibadan,
Ibadan, Nigeria (3) The Federal University of
Technology, 340001 Akure, Nigeria
Facies distribution and petrophysical properties of “X-Field” offshore Niger Delta
were modelled using high-resolution geocellular grids. The dataset comprised of 3D Seismic
volume, log suites and check shots data. Three horizons and two faults were
identified and correlated using interactive facies
interpretation while the facies/parameters
distribution was done using semivariogram analysis
and Sequential Gaussian Simulation.
The results show background floodplains
and channel fills identified within the interval depth range of 4,600 – 6,800
ft (~ 1,153 to 2,267 m). Porosity values obtained was between 0 and 0.275 that
indicate low and high effective porosity, respectively.
The distribution patterns of the various
depositional facies in the study area have been
presented graphically and their reservoir properties quantified and interval of
interest delineated. The information provided in this study could be used for
geological model simulation and to accurately locate targets.
AAPG Search and Discover Article #90063©2007 AAPG Annual Convention, Long Beach, California