Gelation Behavior of Polyacrylamide Reinforced with Nano-Silica for Water Shutoff Treatment in Oil Field

Abstract:

Polyacrylamide gel system is widely been used in oilfield for water shutoff treatment. Gelation behavior such as proper gelation time provides a basic guideline on gel placement depth in reservoir layers. In this study, the gelation behavior of partially hydrolyzed polyacrylamide crosslinked with chromium(III) acetate (PHPA/Cr³⁺) reinforced with nano-silica was studied in term of gelation time and gel stability. The gelation time of PHPA/Cr³⁺ gel could be controlled with the addition of nano-silica where the gel has shown a delay in gelation time at low concentration of nano-silica. At 0.3 wt.% of nano-silica concentration, the gelation time has shown two times delay compared to the original gel system. The gel at the formulations of 0.7 wt.% and 1.0 wt.% nano-silica content remained stable with H code after 24 hours observation.

• Periodical: Solid State Phenomena (Volume 307)
• Pages: 252-257
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.307.252
• Online since: July 2020
• Authors: Nurhazwane Abdul Fadil*, Sonny Irawan, Nur Amelia Mohd Isa, Siti Rohaida Shafian
• Keywords: Bottle Test Method, Gelation Behaviour, Nanosilica, Polyacrylamide Gel, Water Shutoff

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