Oil and Gas

Biography

Biography: Mohammad Parvazdavani

Abstract

The main purpose of this study was to screen various Enhanced Oil Recovery (EOR) technologies for a number of selected matured reservoirs and perform a feasibility investigation of using Carbon Capture and Sequestration (CCS) technology by miscible CO2 injection. The candidate hydrocarbon reservoirs were simulated to compare the EOR methods and also evaluate economically the aspects of CCS-EOR. This study has been done by assessing the production results such as oil recovery as well as gas-oil ratio accompanied with economic parameters. In this work, lab experiments have been performed on reservoir core sample based on an incremental pressure algorithm approaching the miscible conditions to monitor the miscible CO2-EOR injection and also validate the MMP value obtained by slim-tube apparatus. Lab-scale simulation has been used to estimate the field operational parameters for CO2-EOR processes. Based on the field scale simulation, comparison among different gas injection methods (N2, CH4, and CO2) has been done to find the best technical processes. An economic model was constructed to assess the required costs of CO2 capturing, transportation, compression and injection. Capturing cost was evaluated using the current technologies from power plants, refineries and gas processing plants. A Techno-economic analysis was performed on the CCS-EOR methods to evaluate their Net Present Value (NPV). The results obtained showed that the CO2-EOR method is the best selected EOR method for higher oil recovery and lower gas production. Additionally, the economic evaluation (NPV analysis) showed that the use of miscible CO2 injection in the candidate reservoirs was more economical compared to the other scenarios. By reducing Green House Gas (GHG) emission to the atmosphere, the CCS- EOR method has a great potential in reducing the causes of Global warming.