Optimization of Well Patterns Based on Flow Field Intensity

doi:10.11885/j.issn.1674-5086.2013.01.16.02

Abstract

Abstract:

With the impact of geology，well patterns and fluid properties，injected water will break fast and circulate invalidly
in somewhere of the water flooding reservoir，which is the feature of unbalanced displacement. However，in order to pursue
a relatively higher balanced displacement and attain more oil recovery for heterogeneous reservoirs，well pattern optimization
design must consider the heterogeneity of reservoirs. Based on reservoir flow field，the optimal object is to minimize the
coefficient of variation of streamline field intensity in the mathematical model. By solving the mathematical model of well
pattern optimization with genetic algorithm to match the heterogeneity of reservoir，the optimal well allocation can be obtained.
The analysis on the application of above theory in oil reservoir shows that the optimal well allocation can improve waterflooding
situation and recovery.

Key words: well pattern optimization；equilibrium displacement；reservoir flow field；coefficient of variation, enhanced oil
recovery

Feng Qihong1, Wang Bo2*, Wang Xiang1, Wang Shoulei3, Han Xiaodong4. Optimization of Well Patterns Based on Flow Field Intensity[J]. 西南石油大学学报(自然科学版), DOI: 10.11885/j.issn.1674-5086.2013.01.16.02.

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