西南石油大学学报(自然科学版)

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Influence of Gravel Packing Sand Control on the Productivity of Heavy
Oil Well

Si Lianshou1,2, Li Zi’an1, Zhang Jian3   

  1. 1. Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Guangzhou,Guangdong 510640,China
    2. Graduate University of Chinese Academy of Sciences,Shijingshan,Beijing 100049,China
    3. Xianhe Oil Production Plant of SINOPEC Shengli Oilfield Company,Dongying,Shandong 257068,China
  • Online:2013-10-20 Published:2013-10-20

Abstract:

Aimed at the complex models in heavy oil performance history and its attached affections in sand control,the gravel
pack mechanism is studied in this paper. The productivity predicting models and the flow model of the sand control well was
established. Based on the conventional perforated casing productivity prediction,the regional flow drag force and skin factors
were considered. The pressure loss mainly occurs in the perforations. The pressure drop is analyzed by case study,which proved
that the permeability of the packed gravel,oil viscosity and perforation parameters are the key factors to affect the productivity
of gravel-packed wells. Oil well productivity can be improved with high-density and big diameter hole perforating technology
in the gravel-packed well in heavy oil reservoir.

Key words: sand control, gravel pack, productivity prediction, pressure drop, heavy crude reservoir