Abstract
Recent displacement tests have indicated that the stabilized oil bank formed during dilute surfactant flooding may be composed of three secondary oil banks which are characterized by the arrival of high oil cuts, high sulfonate concentrations, and low interfacial tensions in the effluent stream. To determine the mechanisms governing the formation of these banks, a series of core floods was designed. The experimental results, including the production histories and effluent analysis of these tests, indicate that the first two of the banks are formed by the chromatographic separation of high and low equivalent weight sulfonates, while the third is formed by the desorption of sulfonate during the injection of low saline fluids (mobility buffers). Also discussed are the means to alter the production profiles of displacement tests by manipulation of these mechanisms.
| Original language | English (US) |
|---|---|
| Pages | 97-106 |
| Number of pages | 10 |
| State | Published - Jan 1 1981 |
| Event | Soc Pet Eng AIME Pap SPE Proc - East Reg Meet, Appalachian Basin, a New Era of Prod - Columbus, OH, USA Duration: Nov 4 1981 → Nov 6 1981 |
Other
| Other | Soc Pet Eng AIME Pap SPE Proc - East Reg Meet, Appalachian Basin, a New Era of Prod |
|---|---|
| City | Columbus, OH, USA |
| Period | 11/4/81 → 11/6/81 |
All Science Journal Classification (ASJC) codes
- General Engineering