The Effect of Temperature and Pressure of the Injection Water With Formation Water on Calcium Sulfate (Gypsum, Hemihydrate, Anhydrate) Scales Formation in the Siri Oilfield
Publish place: 2nd National Conference On Oil,Gas and petrochemicals
Publish Year: 1391
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
NCOGP02_250
تاریخ نمایه سازی: 23 خرداد 1392
Abstract:
Enhanced oil recovery methods are used to recover the percents of oil that are not naturally recoverable from reservoirs. Water injection as a secondary recovery is used to maintain the pressurein water-drive reservoirs. An important point for having a successful injection is the compatibility ofinjection and formation waters. In this study, using the Scale soft pitzer software and Persian Gulf water and formation water chemical analysis has been measured in the laboratory. Scaling indexcalcium sulfate (gypsum, hemihydrate, anhydrate) at different temperatures (80-210 ◦F ) and pressure(15 - 4000 Psia) is predicted in Iran Siri oilfield. The results show that Calcium sulfate scales hasn’t been formed in siri oilfield and the amount of calcium sulfate scales with increasing temperature and reducing pressure will be raised
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Authors
Hojjat Farahmandfard
Department of Chemical Engineering, Islamic Azad University, Mahshahr Branch, Mahshahr, Iran
Jamshid Moghadasi
Department of Petroleum Engineering, Petroleum University of Technology, Ahwaz, Iran
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