涪陵页岩气井压裂改造室内试验新方法探讨

A New Method for Laboratory Experiment of Fuling Shale Gas Reservoir Fracturing

针对涪陵页岩气田压裂改造,目前室内试验方法主要是采用常规改造的评价方法和技术,对于页岩气的特殊性,通过国内外文献调研和室内相关探索试验,结合页岩储层特征和现场工艺特点进行了探索性试验,初步探索出防膨剂、增效剂等压裂液添加剂及支撑剂长期导流能力评价新方法,对页岩气压裂入井材料的评价方法具有一定的借鉴意义。

At present, the laboratory experiment method of fracturing in Fuling shale gasfield is mainly based on the evaluation method and technology of conventional reservoir. Because of the particularity of shale gas reservoir, the fracturing test of shale gas reservoir is discussed based on the research of domestic and foreign literatures and the related laboratory experiments, combined with the characteristics of shale reservoir and the field process characteristics, and a new method to evaluate the effect of the fracturing fluid additives such as anti swelling agent and synergistic agent and the long term support effect of proppant was preliminarily obtained, which can be used as a reference for the evaluation of shale gas well fracturing materials.