基于方位角的灰度共生矩阵法提取碳酸盐岩储层裂缝参数与应用  

Extraction of fracture parameters of carbonate reservoir by gray co-occurrence matrix method based on azimuth angle and its application

作　　者：何建军[1] 李琼[1] HE Jianjun;LI Qiong(State Key Laboratory of Oil&Gas Reservoir Geology and Exploitation,Chengdu University of Technology,Chengdu 610059,China)

机构地区：[1]油气藏地质及开发工程国家重点实验室(成都理工大学),成都610059

出　　处：《成都理工大学学报（自然科学版）》2023年第3期294-300,共7页Journal of Chengdu University of Technology: Science & Technology Edition

基　　金：国家自然科学基金项目(41274129);中国石化西北油田分公司勘探开发研究院项目(KY2012-S-073)。

摘　　要：针对裂缝系统复杂多变的难题,利用灰度共生矩阵法对玉东3号构造带鹰山组碳酸盐岩储层提取表征裂缝的4种属性参数,对4种属性参数进行融合处理,融合后获得了表征裂缝的有效属性参数,并与裂缝(洞)发育模式相结合,较精准地圈定了裂缝发育带及裂缝系统的分割特征。应用结果表明,鹰山组裂缝系统发育良好,改善了储层的有效性。鹰山组各亚段裂缝(洞)的发育程度较高,鹰山组3个亚段之间裂缝发育程度存在一定差异,整体上具有东强西弱、沿断隆发育的分布特征。Based on geological and geophysical conditions,a new comprehensive fracture prediction method is proposed by combining gray co-occurrence matrix method with multi-attribute fusion method,aiming to solve the complex and changeable problem of fracture system.Gray co-occurrence matrix method is used to extract four attribute parameters as a means to characterize fractures in Yingshan Formation carbonate reservoir in Yudong No.3 tectonic belt,and the four attribute parameters were fused to obtain effective attribute parameters in an attempt to characterize fractures.The fracture development zone and segmentation characteristics of fracture system were accurately delineated by combining these four attribute parameters with fracture(cavity)development model.The application results show that the fracture system of Yingshan Formation has improved the reservoir effectiveness.The fracture(cavity)of Yingshan Formation is highly developed in each submember of Yingshan Formation,but there are some differences in the fracture development among the three submembers.As a whole,the fracture distribution is strong in the east and weak in the west and develops along the faulted uplift.

关 键 词：裂缝 灰度共生矩阵 属性参数 融合 

分 类 号：P631.4[天文地球—地质矿产勘探] TE122.24[天文地球—地质学]