A Method to Determine Waterflood Front Based on Production Performance Data

doi:10.7657/XJPG20200516

Abstract

Abstract:

In view of the problems encountered in the low permeability reservoirs in Changqing oilfield, such as tight lithology, poor water injection efficiency, low single well production and strong plane heterogeneity, which lead to uneven waterflood, the paper established a basic model on the basis of waterflooding theories in low permeability reservoirs, considered the interference of production wells, introduced the factors influencing production according to the potential superposition principle, and established an easy method to determine waterflood front in a well group. This method has been applied in infill drilling adjustment of a low permeability reservoir in Erdos basin and the production cases can prove the feasibility and reliability of the method.

Key words: low permeability reservoir, production performance, waterflood front, waterflood radius, injection-production well pattern, poten- tial superposition principle, infill drilling adjustment

CLC Number:

TE348

MA Li, ZHANG Jiaosheng, WANG Ruiheng, LI Desheng, DU Shouli. A Method to Determine Waterflood Front Based on Production Performance Data[J]. Xinjiang Petroleum Geology, 2020, 41(5): 612-615.

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