A New Analytical Method to Evaluate, Predict, and Improve CO2 Flood Performance in Sandstone Reservoirs (1996)

A New Analytical Method to Evaluate, Predict, and Improve CO2 Flood Performance in Sandstone Reservoirs Sami Bou-Mikael Sami Bou-Mikael Texaco E&P Inc. Search for other works by this author on: This Site Google Scholar Paper presented at the SPE/DOE Improved Oil Recovery Symposium, Tulsa, Oklahoma, April 1996. Paper Number: SPE-35362-MS https://doi.org/10.2118/35362-MS Published: April 21 1996 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Get Permissions Search Site Citation Bou-Mikael, Sami. "A New Analytical Method to Evaluate, Predict, and Improve CO2 Flood Performance in Sandstone Reservoirs." Paper presented at the SPE/DOE Improved Oil Recovery Symposium, Tulsa, Oklahoma, April 1996. doi: https://doi.org/10.2118/35362-MS Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Search nav search search input Search input auto suggest search filter All ContentAll ProceedingsSociety of Petroleum Engineers (SPE)SPE Improved Oil Recovery Conference Search Advanced Search AbstractThe Port Neches CO2 flood (Fig 1), is a joint project between the Department of Energy (DOE) and Texaco E&P Inc. (TEPI) that has been operating for nearly 3 years. This project represents another learning step in developing the CO2 technology. This paper serves as a vehicle for transferring the technology acquired by TEPI to the industry.Reservoir selection for miscible CO2 injection is critical to the economical success of any new project. Vast amount of potential reserves throughout the Gulf Coast are awaiting the right application of CO2 technology. Identifying these reserves, selecting the appropriate recovery method and accurately predicting the recoverable reserves and recovery rates are the essential ingredients of a successful project.This paper include a brief discussion of the Port Neches project performance to date and presents a methodology to select, evaluate and predict project performance based on analogy with other projects performed throughout the Gulf Coast. This analytical approach utilizes type-curves developed from several CO2 floods and can be used independently or in conjunction with other available methods such as reservoir simulation.IntroductionThe vast majority of CO2 flood projects today are being conducted in carbonate reservoirs in the Permian Basin. Industry efforts in the Gulf Coast have been limited in scope and usually on a smaller scale. Gulf Coast sandstone reservoirs differ from those in the Permian Basin in terms of their matrix, reservoir architecture, oil composition, drive mechanism and recovery rates. Their suitability to CO2 flooding also varies.The principal objective for CO2 projects in the Gulf Coast Region in the past has been to achieve miscibility early in the life of the project in order to maximize recovery. This objective has focused the oil industry for CO2 candidates selection on high pressure strong water-drive reservoirs in order to attain miscibility quickly. These water-drive reservoirs have very low residual oil saturation in the swept area, Which has often led to poor performance under CO2 flooding.P. 177 Keywords: sandstone reservoir sami bou-mikael, flood performance, saturation, reservoir architecture, efficiency, reservoir characterization, tertiary reserve, mechanism, upstream oil & gas, enhanced recovery Subjects: Improved and Enhanced Recovery This content is only available via PDF. 1996. Society of Petroleum Engineers You can access this article if you purchase or spend a download.