Bati Raman Field Immiscible CO2 Application: Status Quo and Future Plans

Evaluation of steam injection potential and improving ongoing CO2 injection of the Bati Raman field, Turkey

“…Due to early breakthrough of CO 2 in other wells in a short period of time, the project was converted to field scale random pattern continuous injection. The CO 2 injection field performance was reported periodically (Kantar et al, 1985;Karaoguz et al, 1989;Issever et al, 1993;Sahin et al, 2008). A WAG application is currently underway in the western part of the field.…”

“…Oil viscosity was altered by adding lighter crude to the original dead Bati Raman oil to represent CO 2 contacted oil. The viscosity at the reservoir temperature and current pressure were estimated to be around 200 cp (Sahin et al, 2008).…”

“…1). A recent study (Sahin et al, 2008) showed that an efficient field and well management (maintenance of wells, optimal injection and production rates, closure of low rate wells, etc.) can stop the decline and at least stabilize the production rate for a certain period of time (period after 2003 in Fig.…”

A rigorous approach to predict nitrogen-crude oil minimum miscibility pressure of pure and nitrogen mixtures

“…Different problems such as corrosion in the production wells and surface facilities, CO 2 separation from the saleable hydrocarbons, large requirement of CO 2 per incremental barrel, and asphaltene precipitation cause formation damage and wettability alteration, etc.) have been reported for CO 2 injection process [6][7][8][9][10][11].…”

Experimental and Theoretical Determination of Equilibrium Interfacial Tension for the Solvent(s)–CO2–Heavy Oil Systems

“…3 The major CO 2 immiscible processes mainly include CO 2 cyclic injection, CO 2 huff-n-puff, continuous CO 2 injection, and water-alternating-CO 2 injection, among which CO 2 huff-n-puff appears to be more efficient to increase heavy oil recovery, although the recovery factor is still low. 4,5 The addition of solvents to the CO 2 stream generally accelerates the processes of swelling heavy oil, reducing its viscosity, decreasing the IFT between heavy oil and CO 2 , and thus leading to a higher oil recovery in the vapor extraction (VAPEX) process. 6 Although some laboratory efforts have been conducted to study the mechanisms for enhancing heavy oil recovery by CO 2 injection, 5,7−12 few attempts have been made to evaluate the IFT performance of the solvent(s)−CO 2 −heavy oil systems under sub-and supercritical conditions.…”