西南石油大学学报(自然科学版)

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Study on Interlayer Interference Caused by Commingling Production
and Development Strategy in Sandstone Reservoir

Yu Huajie, Zhu Guojin, Tan Xianhong   

  1. Development Research Dept.,CNOOC Research Institute,Dongcheng,Beijing 100027,China
  • Online:2014-02-01 Published:2014-02-01

Abstract:

There are several vertical reservoirs in A Oilfield,and the greatly different reservoir physical properties,different
fluid properties,and the disperse reserves. Because of these factors,in the cause of commingling water injection or commingling
oil production,some problems caused by reservoir heterogeneity will gradually arise,which include serious injected water
breaking through in single layer,quick increase of water cut,different reserves producing,unequal oil recovery and lower
reservoir oil recovery. So how to improve the recovery is very important in the vertically heterogeneous reservoir. This paper
uses numerical simulation technology to conduct the single and composite factor sensitivity analysis under the condition of
commingling production by A oil field homogeneous model,and reservoir production characteristics,development evaluation
and development index are compared in different development method by the actually heterogeneous model. In the end,we
recommend technology development program practical in Oilfield,and put forward Oilfield development technology strategy
and measures.

Key words: commingling production, interlayer interference, sensitivity analysis, development strategy, sandstone oil reservoir