Abstract
SUMMARY The J2L interval in the NIP-103 reservoir is comprised of a thin, uniform, high permeability sandstone. Well spacing is about 120 acres/well in the miscible-flood target region. The well configuration is non uniform. Oil saturation in the miscible flood target area is expected to be near initial at the start of CO2 injection. These characteristic distinguish this application from the majority of existing miscible floods. In order to study the interaction of the CO2 miscible flood process with the J2L reservoir characterization, a numerical simulation study was conducted. First, a set of one dimensional simulations was made in order to examine linear displacement features. Then, multi-dimensional pattern flood simulations were conducted. Finally, a numerical simulation of the J2L CO2 pilot project was undertaken. This part of the simulation work included the construction of a field model, calibration of the field model through history-matching previous field performance, and examination of the CO2 miscible flood process as it might be implemented in the J2L.
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