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裂缝测井响应特征研究和裂缝网络模式划分是裂缝性碳酸盐岩储层测井评价的关键。裂缝发育的不均匀性造成储层各向异性,使得测井响应特征复杂化,常规测井评价方法难度大。以沾化凹陷富台潜山为例,选择岩心收获率较高且有成像测井资料的典型层段,利用岩心描述裂缝特征与成像测井资料对比,建立起不同状态裂缝在成像测井资料的显示模式,进而综合标定常规测井资料,分析描述了裂缝网络的常规测井响应特征。在此基础上,利用参数交会法建立测井参数与裂缝特征的相关性,归纳划分出9种裂缝网络模式。该方法为常规测井资料定量识别裂缝类型、研究裂缝网络的分布规律奠定了基础。
Fracture logging response characterization and fracturing network patterning are the keys to logging evaluation of fractured carbonate reservoirs. The heterogeneity of fracture development causes reservoir anisotropy, complicating the logging response characteristics, and the conventional logging evaluation methods are difficult. Taking Fuziduo buried hill in Zhanhua depression as an example, a typical interval with high core recovery rate and imaging logging data is selected. By using core-description fracture characteristics and imaging logging data, a comparison is made between the different state fractures in imaging logging data Of the display mode, and then the general calibration of conventional logging data, analysis and description of the fracture network of conventional logging response characteristics. On this basis, the correlation between logging parameters and fracture characteristics is established by using the parameter intersection method, and nine kinds of fracture network modes are concluded. The method lays the foundation for the quantitative identification of fracture types by conventional well logging data and the study on the distribution of fracture networks.