The secondary recovery process usually has an uncertain parameter that cause of unexpected results while operating the project. This can be achieve by reservoir simulation or reservoir modeling, one of the most powerful techniques currently available for reservoir management and development tool, has been studies to consider the petroleum production and development plan. This technique provides opportunity to produce the reservoir several times to examine alternatives before commencing. Not only primary production examine but also field development too, especially waterflooding project can be modeled and simulated to studies the suitable flooding pattern, optimum water injection rate, optimum oil production rate, optimum time to start water injection and other necessary project requirement.