Synthesis and Characterization of Polyacrylamide Crosslinked Copolymer for Enhanced Oil Recovery and Rock Wettability Alteration
International Journal of Oil, Gas and Coal Engineering
Volume 3, Issue 4, July 2015, Pages: 47-59
Received: Jul. 12, 2015; Accepted: Jul. 17, 2015; Published: Jul. 25, 2015
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Authors
Abdelaziz El Hoshoudy, Egyptian Petroleum Research Institute, Naser City, Cairo, Egypt
Saad Desouky, Egyptian Petroleum Research Institute, Naser City, Cairo, Egypt
Ahmed Al-sabagh, Egyptian Petroleum Research Institute, Naser City, Cairo, Egypt
Mohammed El-kady, Department of Chemistry, Ainshams University, Faculty of Science, Cairo, Egypt
Mohammed Betiha, Egyptian Petroleum Research Institute, Naser City, Cairo, Egypt
Sawsan Mahmoud, Egyptian Petroleum Research Institute, Naser City, Cairo, Egypt
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Abstract
Recently enhanced oil recovery (EOR) technology is getting more attention by many countries since energy crises are getting worse and frightened. To improve oil recovery several techniques had been employed, one of them is wettability alteration by chemical agents flooding. In this research a novel copolymer (Acrylamide-4-Dodecyl-benzenesulfonate-1-vinylimidazol-3-ium-Divinyl sulfone) prepared by free radical emulsion polymerization of acrylamide (AM), 4-Dodecyl-benzenesulfonate-1-vinylimidazol-3-ium (DBSV) as amphoteric surfmer and divinyl sulfone (DVS) as hydrophobic cross-linker moiety had been prepared and characterized. Chemical structure of the prepared copolymer was proven through different techniques such as Fourier transform infrared spectroscopy (FTIR), nuclear magnetic spectroscopy (1H&13C-NMR), scanning electron microscope (SEM), high resolution transmission electron microscope (HRTEM), while particle size and particle size distribution were characterized by dynamic light scattering (DLS) and thermal properties characterized by thermal gravimetric analysis (TGA) and differential scanning calorimetry (DSC). Wettability alteration was evaluated by contact angle measurements through static sessile drop method, where the results indicate the novel copolymer ability for altering wettability of sandstone rock from oil-wet to water wet even at harsh reservoir conditions, so enhance oil recovery factor.
Keywords
Polymeric Surfmers, Hydrophobically Associated Polyacrylamide, Free Radical Emulsion Polymerization, Wettability Alteration, Enhanced Oil Recovery
To cite this article
Abdelaziz El Hoshoudy, Saad Desouky, Ahmed Al-sabagh, Mohammed El-kady, Mohammed Betiha, Sawsan Mahmoud, Synthesis and Characterization of Polyacrylamide Crosslinked Copolymer for Enhanced Oil Recovery and Rock Wettability Alteration, International Journal of Oil, Gas and Coal Engineering. Vol. 3, No. 4, 2015, pp. 47-59. doi: 10.11648/j.ogce.20150304.11
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