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裂缝型碳酸盐岩储层非均质发育裂缝和溶洞,具有更复杂的空隙空间结构与极强的各向异性,使得裂缝型储层有效性评价技术成为碳酸盐岩测井评价技术的难题之一。而正确评价裂缝的张开度、径向延伸和连通情况是评价其有效性的关键。通过分析不同张开度、不同径向延伸和渗滤能力的裂缝发育层段在常规测井、微电阻率扫描成像测井、阵列声波成像测井和远探测声波成像测井的响应特征,并结合录井、试油和投产资料,提出了裂缝型碳酸盐岩储层的有效性评价方法,对储层类型和级别进行了划分。
The fractured carbonate reservoirs have heterogeneous development fractures and karst caves with more complicated void space structure and strong anisotropy, making fractured reservoirs effectiveness evaluation technology become the technology of carbonate logging evaluation One of the problems. Correct evaluation of crack opening, radial extension and connectivity is the key to evaluate its effectiveness. By analyzing the response characteristics of the fractured development sections with different opening degrees, different radial extensibility and percolation capability in conventional logging, micro-resistivity scanning imaging logging, array acoustic imaging logging and far-sounding acoustic imaging logging, Well, test oil and production data, a method of evaluating the effectiveness of fractured carbonate reservoirs is proposed and the types and levels of reservoirs are divided.