A Laboratory Study of Surfactants As Foam Diverting Agents

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The foam diverting capabilities of the surfactant Chaser SDlOOO were measured in a linear sandpack at steam conditions. The effects of nitrogen and surfactant concentration were investigated.Ottawa sand, 170 to 200 mesh, was packed into a 6 fi stainless steel tube. In the two sandpacks used, the porosities ranged from 35.3 to 36.2 % and the permeabilities ranged from 5 to 6.2 darcys. The sandpacks were originally saturated with water and then flooded with oil to residual water saturation. Afterwards, the sandpack was steamed to residual oil saturation to represent a steam channel. Two types of runs were made, one with no nitrogen injection, and the others with continuous nitrogen injection. In both cases, slightly superheated steam was injected concurrently with slugs of surfactant or water. The temperature and pressure profiles along the sandpack were measured. A system backpressure of 70 psig was applied. Results showed that the SDlOOO slugs at concentrations from 0.1 wt % to 1 .O wt % performed no better than slugs of water. This was observed whether or not nitrogen was injected. For the runs with nitrogen, it was also observed that the largest pressure gradient increases were in the last 20 in. of the sandpack, and the second SDlOOO slug performed slightly better than all other slugs.


Type of resource text
Date created June 1987


Author Maneffa, Michael Giovanni
Primary advisor Castanier, Louis M.
Primary advisor Brigham, William E.
Degree granting institution Stanford University, Department of Petroleum Engineering


Subject School of Earth Energy & Environmental Sciences
Genre Thesis

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Maneffa, Michael Giovanni. (1987). A Laboratory Study of Surfactants As Foam Diverting Agents. Stanford Digital Repository. Available at: https://purl.stanford.edu/cc929sv4522


Master's Theses, Doerr School of Sustainability

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