西南石油大学学报(自然科学版) ›› 2012, Vol. 34 ›› Issue (6): 94-100.

• 石油与天然气工程 • Previous Articles     Next Articles

Study on Quantification Method of Interlayer Pressure Textural Differenceof the Reservoir During High Water Cut Period

Zhao Ming1，2, Pan Hong3, Liu Ruiping2, Deng Li4   

  1. 1. College of Energy，Chengdu University of Technology，Chengdu，Sichuan 610059，China2. Exploration & Development Research Institute of Dagang Oilfied，Dagang，Tianjin 300280，China3. Oil Prodction Technology Institute of Dagang Oilfied，Dagang，Tianjin 300280，China4. The Frist Oil Production Plant，Dagang Oilfield Company，Dagang，Tianjin 300280，China
  • Received:1900-01-01 Revised:1900-01-01 Online:2012-12-01 Published:2012-12-01

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Abstract: Abstract：As a result of long-term water injection development and interlayer heterogeneity，reservoir at high water cut period
has serious interlayer pressure textural differences，a knowledge of which is the important basis of rational adjustment. In view
of the lack of testing pressure data of well site，and the difficulty in single pressure data acquisition，a quantitative mathematical
model of the high water-cut period stratum interlayer pressure textural difference was established with the percolation mechanics
principle. The key parameters of the model can be obtained by production data. The example in Zaoyuan Oilfield showed that：
high water cut reservoir interlayer pressure is obviously different. The method can determine the pressure differences of each
layer. And calculating results is close to the testing data. It is helpful for recognizing the development contradiction，and for
providing the technical basis for reasonable adjustment.

Key words: high water cut period, pressure textural difference, bottom hole flowing pressure, pressure coefficient ratio, waterinjection split