超稠油油藏蒸汽驱动态预测模型

doi:10.11743/ogg20180119

Abstract

Abstract: Steam flooding is one of the most effective and mature methods for the development of super-heavy oil reservoirs.The displacement mechanisms of steam flooding and its technical processes are well understood at present.However, the study of mathematical model and performance prediction model still needs to be further strengthened.Based on the theory of steam chamber growth and the study of subsurface heat loss, the reservoirs in steam flooding process are divided into steam zone, transition zone and crude oil zone.The energy conversion and conservation principles are used to get the expressions of physical parameters in each zone of steam flooding and build injection-production models for steam flooding.At the same time, a performance prediction model is built for five-spot well pattern according to well patterns and the influences of cyclic steam stimulation before steam flooding.The model is solved by programming and the actual data of Zhong32 Block in Xinjiang are used to test it.The results show that the model can accurately predict the locations of fronts of steam chamber and oil-water transition zone.In addition, it also can predict oil and water production.

Key words: dynamic prediction, energy conservation, dynamic regulation, steam flooding, extra heavy oil, oilfield development

CLC Number:

TE345

Fu Jingang, Du Dianfa, Zheng Yang, Ba Zhongchen, Li Dongdong. Dynamic prediction model of steam flooding in extra heavy oil reservoirs[J]. Oil & Gas Geology, 2018, 39(1): 192-197.

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Dynamic prediction model of steam flooding in extra heavy oil reservoirs

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