西南石油大学学报(自然科学版)

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A Study on the Prediction Method of Well-testing Curve Type of New Wells

Liu Wendong1*, Liu Xingquan2   

  1. 1. The Second Section of No.2 Oil Production Company of Daqing Oil-field Company Ltd.,Daqing,Heilongjiang 163000,China
    2. No.8 Oil Production Company of Daqing Oil-field Company Ltd.,Daqing,Heilongjiang 163000,China
  • Online:2015-06-01 Published:2015-06-01
  • Contact: 1. The Second Section of No.2 Oil Production Company of Daqing Oil-field Company Ltd.,Daqing,Heilongjiang 163000,China 2. No.8 Oil Production Company of Daqing Oil-field Company Ltd.,Daqing,Heilongjiang 163000,China

Abstract:

When deploying monitoring well and setting appropriate time for well test,accurate prediction of well logging curve
types undoubtedly has important significance. Based on the principle of multiple discriminant analysis we combine the reality
well test curve types and the well logging and production performance data of oilfield monitored wells,we optimize the well and
reservoir parameters through repeated screening parameters. In the end,we established a model considering reservoir thickness,
moisture content,logging permeability and the oil production. The result of the error rates is 9.09% and the coincidence rate
is 85.7%,which means the model can be used in anticipation for logging curve type. This method provides a scientific and
reasonable guidance for workers to formulate reasonable testing time,optimize the monitoring well and improve the quality of
monitoring results.

Key words: well test, curve types, multi-group discriminant, prediction model