Oil Production Value Chain Generation Using Petroleum System Modelling a Case Study of (Oka Field) Niger Delta

Abstract

There is a critical problem in understanding the cost and profit of each sector in oil production along the value chain and because each oil production field offers different challenging issues at different time due to location, geology and uncertainties. This research is aimed at applying a numerical simulation using petroleum system model for an oil production value chain, using Oka oil production field as a case study. The method used in this research was both efficient and effective through the application of software simulation integrated models, such as Excel for economics evaluation, GAP for generating VLP, PROSPER was applied to build the well model while Eclipse Model the reservoir. Hence the entire Petroleum asset can be assessed by daily production indices and information from the various nodes. In this research a decision support tool was developed. From the results obtained, the pressure was at 2600psig, the target RF was estimated =27%. The Minimum of 5 wells were initiated to drain the reservoir at estimated 40,000bbls per day for five years. The production profile was set to be evaluated for the period of 10 years. The BHFP is 1830psig; the averaged maintenance down time is 10 % for all the wells. The minimum economical rate for the field is 2000STB/D of oil. Maximum GOR =1500 scf/stb, Oil in place in the 113419255STB, filed water 402141787STB and the dissolved gas in the field 56823047Mscf. The maximum allowable water cut is 90%. This research surmises that Oka Field oil and gas value chain has been developed using petroleum system through the application software simulations, this can guide the petroleum industry on decision making to aid an effective value chain production.