Abstract

The 3-D geological and geothermal model was built using seismic data and geo-temperature data respectively. The model was used to deduce the environment of deposition and their facies. The geological model serves as a pointer to locate highly permeable channels where hydrocarbons are found. The well consist of Gamma-ray log (GR log), Spontaneous Potential logs (SP log), Resistivity logs, Formation density, Neutron log,  Sonic log and all the well logs penetrate Agbada and the Benin Formation. The wells within the interval studied consist mainly of alternate sequence of sand and shales. The shale is rich in organic matter in the study field. The geo-temperature values of 101.60oC– 119.60oCat modeled depth of 1357m- 3500m, indicating that the shale beds of Agbada Formation are within the oil-generating window and are thermally matured with sufficient organic matter to generate hydrocarbon in the study field as earlier believed to be immature and cannot generate hydrocarbon. The 3-D geological and geo thermal model is the basis of establishing depositional facies and the hydrocarbon window of the Agbada Formation at depth 1357-3500m which is a useful tool in exploration and exploitation geology.

Keywords: Geological and Geothermal model, Hydrocarbon window, Thermal maturity.