Analysis of Nitrogen Gas Flooding Development Effect on Water-Flooding Reservoirs

Abstract:

This study evaluated the potential for application of nitrogen injection to Dujiatai which is a water-flooding reservoir developing for decades. ECLIPSE PVTi module of simulation was employed to determine N₂-oil MMP (Minimum miscibility pressure) which is as a criterion for screening. Then, through nitrogen flooding development scheme design and index prediction of a typical well group, we get the optimal water alternating gas (WAG) scheme. The optimal scheme can obvious increase the reservoir recovery for the next decade, which can be a useful development method for similar water-flooding reservoirs.

• Periodical: Advanced Materials Research (Volumes 1010-1012)
• Pages: 1684-1688
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1010-1012.1684
• Online since: August 2014
• Authors: Zi Ji Wang*, Yue Dong Yao, Jian Uan Wang, Xu Zhou, Chang Fa Qiao, Ting Gao
• Keywords: Compositional Model, Nitrogen Flooding, Remaining Oil, WAG

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