Authors : Z.O. Opafunso , B.O. Adewuyi , G.O. Oniyide and E.O. Ifelola
Abstract: For the purpose of adapting horizontal well drilling technology to enhance oil recovery in the Niger Delta area of Nigeria, well (wireline) logs, deviation data, 3D seismic data and check shot for selected wells were collected for "Erinke" field of Chevron Nig. Limited. Schlumberger Petrel Software was used to analyze the data in order to create a 3D graphic representation of the reservoir. Thereafter, well correlation was carried out on the producer wells: W1500, W900, W1000, W1600, W800 and the injection wells: OLA200, OLA 400, OLA 500, OLA 600 and OLA 300. The wells were correlated to determine the zones that were rich in sand with high permeability, high porosity, high oil saturation and low water saturation. The essence of the well correlation exercise was to determine the hydrocarbon pay-zone by picking the reservoir to be modeled and to suggest the location and sitting of a new horizontal producing oil well, tagged Barnes 1, based on the given data. In order to select a hydrocarbon reservoir, the gamma ray was compared with resistivity log. The results shows that the reservoir trap considered for this study had many discontinuities, which proved to be a good site for the drilling of the proposed horizontal well. The study also confirmed that taken into consideration the proposed location of the horizontal well (Barnes 01), the productivity index was perceived to be higher when compared to drilling a vertical well along the same location. The reservoir was highly permeable and porous with high oil-to-water saturation ratio.
Z.O. Opafunso , B.O. Adewuyi , G.O. Oniyide and E.O. Ifelola , 2008. Horizontal Well Design to Enhance Oil Recovery in the Niger Delta Area of Nigeria Using Schlumberger Petrel Software. Journal of Engineering and Applied Sciences, 3: 377-384.