裂缝识别测井技术开发与应用DEVELOPMENT OF FRACTURE IDENTIFYING WELL-LOGGING TECHNIQUE AND ITS APPLICATION
苗清,秦华明,刘江,刘艳辉,杜宗君
MIAO Qing,QIN Huaming,LIU Jiang,LIU Yanhui,DU Zongjun
摘要(Abstract)：
裂缝对测井解释及布井有着重要影响,开发井常规测井系列裂缝有效识别具有重要意义。从常规测井曲线上提取出变异系数、岩石裂缝系数、岩石可塑性参数等多个反映微弱裂缝高频信号的裂缝特征参数,并利用逐步判别法进行了定量裂缝识别。密闭取心井和电成像测井资料所显裂缝的5口开发井的处理与验证效果良好,为长垣东部无成像测井资料的开发井裂缝评价,特别是水淹区裂缝水淹层识别提供了更为实用的方法和手段。
The fracture has important influences on the logging interpretation and the well arrangement,it is of great significance to effectively identify the fractures with the help of the conventional logging series. Fracture characterizing parameters responding to the weak high-frequency signals of the fractures were extracted from the conventional well logging curves: variation coefficient,rock fracture coefficient,rock plasticity parameter and so on,by means of stepwise discriminating method,the fractures were quantitatively identified. The recognition and verification results are much better for the shown fractures in the five developing wells with the help of the sealed coring wells and FMI( Formation Micro Imaging) data,thus the more practical method and means is provided for the fracture evaluation of the developing wells without the imaged well-logging data in the eastern part of the Placanticline,especially for the identification of the fractured watered-out layers in the flooded area.
关键词(KeyWords)：
大庆长垣;裂缝识别;测井曲线;裂缝参数;裂缝水淹层;逐步判别法
Daqing Placanticline;fracture identification/recognition;well logging curve;fracture parameter;crack/fracture watered-out layer;stepwise/step-by-step discriminating method
基金项目(Foundation):
作者(Author):
苗清,秦华明,刘江,刘艳辉,杜宗君
MIAO Qing,QIN Huaming,LIU Jiang,LIU Yanhui,DU Zongjun
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