页岩气产能影响因素分析

Analysis on shale gas production affecting factors

页岩气作为一种重要的非常规能源,日益受到重视。通过大量的文献调研,分析了页岩的储层基本特征和影响页岩气产能的主要因素。国内外页岩气资源量巨大,能成为未来能源重要的补给。但其储层致密、物性较差,只有页岩厚度、有机质丰度和成熟度达到有效的配伍,才能成为有利的页岩气区。同时其产量受多方面因素的综合影响,主要包括吸附作用、滑脱效应及压裂液滞留等。为今后页岩气开采提供理论依据。

Shale gas is one type of important unconventional energy sources,and receives more attention increasingly.Shale gas reservoir characteristics and production affecting factors are analyzed through large amount of literature researches.It has a great deal of resources both in China and abroad,so it would be a good supply for future energy.But the reservoir of shale gas is too tight,and the porosity and permeability are rather low.Only the effective com- patibility between the thickness of shale,the organic matter abundance and maturity was achieved,the area could be favorable.Meanwhile,the production of shale gas is influenced by the combined effect of many factors,mainly including absorption function,slippage effect,de- tention of fracturing fluid,and so on.This study will provide the theory basis for deeply shale- gas drilling.