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本文通过对川西南灵音寺～荷包场地区二叠系阳新统钻遇断层井有效裂缝分布规律、产流体性质及其地震响应特征的解剖,摸索出一套精选井位的方法,建立了按断层断开层位布井的模式。这一模式经12口井实钻检验,获气成功率达83.33％,使该区阳新统裂缝性气藏的勘探进入了一个新阶段。

Distribution Rules of the Effective Fractures in Yangxin Series of Permian in South-west Sichuan and A Discussion on the Method of Location of Wells

In this paper, through analyzing the distribution rules of the effective fractures, the properties of the fluids produced and their characteristics of the seismic response in the wells encountering faults in Yangxin Series of Permian at Lingyinsi-Hebaochang area in South-west Sichuan, a suit of methods for precisely choosing well positions are fumbled and a mode for location of wells is set up according to the layer positions brocken by faults. Checked by 12 wells drilled, the success ratio for gas by use of this mode is 83.33%, making this area up to a new stage for exploring the fractured gas reservoirs in Yangxin Series.