阿姆河右岸缝洞储层识别多尺度定量评价方法

Quantitative Evaluation for Reservoir Identification of Vug-Fractured Reservoir in Right Bank of Amu Darya Basin

阿姆河右岸东区发育逆冲断裂缝洞型储集层,储层类型复杂多样,有效储层的识别成为影响该类储层勘探开发的首要问题。利用声波远探测技术在碳酸盐岩缝洞体储层评价中的优势,结合常规测井、电成像测井、阵列声波测井等近井带测井方法,确定该区主要存在缝洞型、裂缝型、孔缝型3种储集空间类型,并从中选择与产气量相关的敏感因子构建储层物性综合指数,建立多尺度储层空间类型定量评价方法,解决有效储层的识别问题。

The eastern area of the right bank of Amu Darya River develops thrust vug-fractured reservoirs with complex and diverse reservoir types.The identification of effective reservoir has become the primary challenge,which is affecting the exploration and development of this kind of reservoir.This paper use the advantages of acoustic far detection imaging in evaluation of vug-fractured carbonate reservoirs,combines with conventional,electrical imaging,array acoustic and other borehole logging methods,qualitatively identifies three main types of reservoir space in this area:vug-fractured,fractured and pore-fractured.The sensitive factors related to gas production have been selected to build a comprehensive index of reservoir physical properties,and then establishes a multi-scale quantitative evaluation method of reservoir space types,which solves the identification problem of effective reservoirs.