Evaluation of Displacement Efficiency in Volatile Oil Reservoirs under Nitrogen Injection Juan E. Rivera de la Ossa; Juan E. Rivera de la Ossa ECOPETROL-ICP Search for other works by this author on: This Site Google Scholar Juan C. Correa Castro; Juan C. Correa Castro Universidad Industrial de Santander Search for other works by this author on: This Site Google Scholar Cesar A. Mantilla Uribe; Cesar A. Mantilla Uribe Universidad Industrial de Santander Search for other works by this author on: This Site Google Scholar Cesar Augusto Duarte Prada Cesar Augusto Duarte Prada E.O.S. Ltda Search for other works by this author on: This Site Google Scholar Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, Midland, Texas, May 2001. Paper Number: SPE-70053-MS https://doi.org/10.2118/70053-MS Published: May 15 2001 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Get Permissions Search Site Citation Rivera de la Ossa, Juan E., Correa Castro, Juan C., Mantilla Uribe, Cesar A., and Cesar Augusto Duarte Prada. "Evaluation of Displacement Efficiency in Volatile Oil Reservoirs under Nitrogen Injection." Paper presented at the SPE Permian Basin Oil and Gas Recovery Conference, Midland, Texas, May 2001. doi: https://doi.org/10.2118/70053-MS Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll ProceedingsSociety of Petroleum Engineers (SPE)SPE Permian Basin Oil and Gas Recovery Conference Search Advanced Search ABSTRACT It nitrogen injection has been proven as a competitive alternative for volatile oil reservoirs lately found in Piedemonte area of Colombia, taking into account the reservoir fluid nature and the reservoir conditions. A laboratory study was carried out by the authors in the Enhanced Oil Recovery Laboratory of Colombian Petroleum Institute.Three corefloods were carried out using Berea sandstone and volatile oil samples from the Piedemonte area and nitrogen as displacing agent. One of these corefloods was conducted in a long Coreflooding apparatus, and the other ones, in a short Coreflooding apparatus connected with a slim tube in a order to achieve miscibility conditions. The main variable studied was the flow rate, which represents three different flow regimes. The scaling criteria taken was a dimensionless group, which relates viscous and gravity forces, called gravity number.Displacement efficiencies determined were around 50%, 65% and 80% for each one the tests. The results of these corefloods were compared to determine the best scheme of nitrogen injection. Results have successfully confirmed the effectiveness of nitrogen as displacing agent for this kind of oils and the better swept efficiency given by the equilibrium between the governing forces. Keywords: nitrogen, upstream oil & gas, deposit, relation, gravity, volatile oil reservoir, enhanced recovery, vertical direction, miscible displacement, porous media Subjects: Fluid Characterization, Improved and Enhanced Recovery, Phase behavior and PVT measurements Copyright 2001, Society of Petroleum Engineers You can access this article if you purchase or spend a download.