西南石油大学学报(自然科学版)

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A New Method of Analysis of Low Permeability Reservoir Interwell
Reserves Producing Status

Sun Laixi1,2, Zhang Zonghui3, Wang Shili4, Luo Gang4, Deng Qingyang1   

  1. 1. School of Energy Resources,Chengdu University of Technology,Chengdu,Sichuan 610059,China
    2. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Chengdu University of Technology,Chengdu,Sichuan 610059,China
    3. The NO.2 Production Plant of North China Oilfield Company,SINOPEC,Yanchi,Ningxia 751500,China
    4. Research Institute of Exploration and Development of Xinjiang Oilfield Company,PetroChina,Karamay,Xinjiang 834000,China
  • Online:2014-04-01 Published:2014-04-01

Abstract:

The existence of start-up pressure gradient of reservoir has a great impact on the reservoir producing extent,the
bigger the start-up pressure gradient,the poor the the reservoir producing extent. Based on the mechanism of fluid flow from
the low permeability reservoir,the relationship between the start-up pressure gradient and permeability relationship of the
study area were established by the in-situ early bound water production performance of single-phase data and well test material
and well test method. we also analyze a typical well group pressure driven between the injection wells and production wells
gradient features. By comparing values of reservoir permeability and reservoir fluid permeability values corresponding to the
size,we determine whether the fluid within the reservoir may flow. This quantitative analysis of low permeability reservoir
interwell reserves producing condition provides the reference for determining interwell residual oil distribution provides of
similar reservoir.

Key words: low permeability reservoir, start-up pressure gradient, well test methods, reserves producing, the distribution of
residual oil