On the Evaluation of Crude Oil Viscosity: A Robust Modeling Approach
Publish Year: 1394
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
NIPC03_094
تاریخ نمایه سازی: 30 دی 1394
Abstract:
Crude oil viscosity is a key property needed for petroleum engineering analysis such as evaluation of fluid flow in porous media, reservoir performance, reservoir simulation, etc. This property is traditionally measured through expensive and time consuming laboratory measurements. In this communication, about 1500 dead oil viscosity data points of light and intermediate crude oil systems from various geological locations have been collected. Afterward, a soft computing approach, namely least square support vector machine (LSSVM), has been utilized to develop two distinct viscosity models for temperatures below and above 313.15 K. The parameters of these models have been optimized using coupled simulated annealing (CSA) optimization tool. The results of this study indicated that the developed models can predict dead oil viscosity at all temperatures and oil API gravities with enough accuracy. In addition, statistical and graphical error analyses illustrated that the proposed CSA-LSSCM models outperform all of pre-existing models
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Authors
Abdolhossein Hemmati-Sarapardeh
Department of Petroleum Engineering, Amirkabir University of Technology, Tehran, Iran
Babak Aminshahidy
Department of Petroleum Engineering, Amirkabir University of Technology, Tehran, Iran
Amin Pajouhandeh
Department of Petroleum Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
Seyed Hamidreza Yousefi
Department of Petroleum Engineering, Amirkabir University of Technology, Tehran, Iran
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