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گواهی نمایه سازی مقاله Subject of paper: Mechanistic study of interaction between surfactant and carbonate surface for enhancing oil recovery

عنوان مقاله: Subject of paper: Mechanistic study of interaction between surfactant and carbonate surface for enhancing oil recovery
شناسه (COI) مقاله: IPEC03_043
منتشر شده در سومین کنگره ملی مهندسی نفت در سال ۱۳۹۰
مشخصات نویسندگان مقاله:

Kh Jarrahian - Polymer Science and Technology Division, Research Institute of Petroleum Industry (RIPI), Tehran, Iran, ١٤٦٦٥-١٣٧
O Seiedi - EOR Research Center, School of Chemical and Petroleum Engineering,Shiraz University, Shiraz, Iran,Po. Box. ٧١٣٤٥-١٧١٩
M Vafaie Sefti - Chemical Engineering Faculty, Tarbiat Modares University, Tehran, Iran,Po. Box. ١٤١٥٥-١٤٣
Sh. Ayatollahi - EOR Research Center, School of Chemical and Petroleum Engineering,Shiraz University, Shiraz, Iran, Po. Box. ٧١٣٤٥-١٧١٩

خلاصه مقاله:
Considerable world’s oil reserve is accumulated in naturally fractured carbonate reservoirs, with very low oil recovery efficiency because of theirwettability and tightness of the matrixes. The recovery efficiency will beimproved considerably if the reservoir rock wettability is changed frommostly oil-wet to water-wet to enhance water imbibition into the oilsaturated rock. In this experimental study, an extensive mechanistic studyis performed utilizing different analytical tools to study the effects ofdifferent surfactnts on the sample rock’s wettability. The results indicate that the surfactants act at different manner according to their structure. Cationic surfactant, C١٢TAB, desorbed irreversibly stearic acid from dolomite surface via ionic interaction. Nonionic surfactant, TritonX-١٠٠, adsorbed on the surface by polarization of π electrons and ion exchange. The released stearic acid adsorbed on the new layer on the surface through hydrophobic interaction. Anionic surfactant, SDS, adsorb on the surface via hydrophobic interaction between the tail of surfactant and the adsorbed acid so change the wettability of surface to neutral wet condition.

کلمات کلیدی:
Wettability alteration-Surfactant-Carbonate-TGA

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