Well logs identify igneous reservoir fracture types

A study established a quantitative fracture identification method for the igneous reservoir rock in the Xingcheng group of Xushen gas field, a field near Daqing in northeastern China.The method uses a curve unit principle and an algorithm.The field has much data available such as core descriptions, conventional logs, formation microimaging (FMI), and drilling data.Compared with the identification from conventional well logs, FMIs have an advantage, in most cases, for characterizing fractures. But in some local low-resistivity formations, conventional well logs could assist in interpreting FMIs.Practical experience and this study demonstrate that the combination of FMIs with conventional w...

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