叠后地震属性识别页岩气储层裂缝研究及应用.pdfVIP

第43 卷 第5 期 煤田地质与勘探 Vol. 43 No.5 2015 年 10 月 COAL GEOLOGY EXPLORATION Oct. 2015 文章编号: 1001-1986(2015)05-0113-04 叠后地震属性识别页岩气储层裂缝研究及应用 王 飞，程礼军，刘俊峰，谢庆明，黄 帅，黄振华 ( 国土资源部页岩气资源勘查重点实验室；油气资源与探测国家重点实验室重庆页岩气研究中心； 重庆市页岩气资源与勘查工程技术研究中心，重庆 400042) : 页岩气储层具有低孔隙度、超低渗透率等特点，以游离或吸附状态赋存于泥页岩及其砂岩 夹层的裂缝、孔隙、有机质中，且裂缝的发育在一定程度上决定着页岩气藏的品质和产量。储层 裂缝发育的复杂性决定了裂缝识别与预测的难度，且受限于地震资料分辨率的影响。以重庆渝东 南地区为例，利用三维地震勘探资料的波形相似性、倾角、方位角、曲率等信息，采用叠后三维 地震属性分析技术，如相干体技术、蚂蚁自动追踪技术、最大曲率等属性综合识别与预测页岩气 储层天然裂缝，并对比区域断裂特征、岩心识别、FMI 测井解释的结果，认为叠后地震属性在页 岩气储层裂缝识别上具有一定的优势。 ：页岩气；裂缝；相干体；曲率；蚂蚁追踪 ：P631 ：A DOI: 10.3969/j.issn.1001-1986.2015.05.026 Research and application of post-stack seismic attributes in recognizing shale gas reservoir fracture WANG Fei, CHENG Lijun, LIU Junfeng, XIE Qingming, HUANG Shuai, HUANG Zhenhua (Key Laboratory of Shale Gas Exploration, Ministry of Land and Resources, Chongqing Institute of Geology and Mineral Resources ; Chongqing Engineering Research Centerfor Shale Gas Resource Exploration , Chongqing Institute of Geology and Mineral Resources; Chongqing Shale Gas Research Center of State Key Laboratory of Petroleum Resource and Prospecting, Chongqing Institute of Geology and Mineral Resources, Chongqing 400042, China) Abstract: Shale gas reservoir has the characteristics of low porosity, low permeability and so on, gas exists in fractures, pores and organic matter of shale and interbedded sandstone. To some extent the fractures determine the quality and yield of shale gas deposit. It is hard to recognize and predict fractures because of the complexity of fractures development, and using seismic data to identify fractures