Abstract
Many surfactants have been evaluated for their ability to recover incremental oil. This study focused on alkyl polyglycosides (APG) as candidates for improved oil recovery application. A laboratory study determined the characteristics of many APG surfactant formulations, in particular for their capability to create low interfacial tensions (IFT) with n-alkane hydrocarbons. Formulations explored included a wide-range of alcohol and Sorbitan-based surfactants as cosurfactants with these APG surfactants. Some APG-cosurfactant combinations exhibited low IFT values of ≤ 0.01 dyne/cm or vs. n-octane. Laboratory testing confirmed the useful properties that the IFT for these APG formulations could be largely independent of both salinity and temperature. Some APG surfactants (shorter alkyl chain products) exhibited relatively low adsorption on kaolinite clay. IFT was lower for PG 2062/alcohol formulations when the alcohol Hansen dispersion parameter increased, polarization parameter decreased, and hydrogen bonding parameter decreased. As the Hansen parameters for this alcohol series became more similar to the values for n-octane, the model oil phase, the PG 2062/alcohol formulation reduced the IFT to its lowest measured values. This is an abstract of a paper presented at the SPE-DOE 14th Improved Symposium Oil Recovery Proceedings (Tulsa, OK, 4/17-21/2004).
| Original language | English |
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| Publication status | Published - 30 Jul 2004 |
| Externally published | Yes |
| Event | 2004 SPE - DOE Fourteenth Inproved Symposium Oil Recovery Proceedings: Clean Sweep Strategies - Tulsa, OK, United States Duration: 17 Apr 2004 → 21 Apr 2004 |
Conference
| Conference | 2004 SPE - DOE Fourteenth Inproved Symposium Oil Recovery Proceedings: Clean Sweep Strategies |
|---|---|
| Country/Territory | United States |
| City | Tulsa, OK |
| Period | 17/04/04 → 21/04/04 |