Abstract
Because of a large amount of remained oil in reservoirs after the secondary or tertiary recovery, sometimes using profitable methods such as surfactant-alternating gas (SAG) is reasonable. For preparing stable foams, it is very crucial to inject at optimum rate. Foam strength can be suppressed during inappropriate conditions and drying out the foam within the porous media. In this study, the effects of adsorbent, gas phase, surfactant concentration, and sacrificial agent on sodium dodecyl sulphate (SDS) adsorption density were examined by using static and dynamic adsorption experiments. Hence, a series of SAG tests were designed to evaluate the effects of injection rates, first injected phase type, injection mode and presence of calcium lignosulphonate (CLS) on the oil recovery. During SAG injection, the results showed that the oil mobility was reduced 65%. SAG injection as secondary mode was more efficient and the same ultimate recovery was achieved with lower cost. [Received: April 1, 2014; Accepted: November 3, 2014]
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Oil, Gas and Coal Technology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
