作　　者： (隆雨辰）; (李俊）; (王志章）; (张国印）; (韩丹）;

机构地区： 昆明理工大学国土资源学院,云南昆明650000

出　　处： 《油气藏评价与开发》 2017年第4期6-9,15,共5页

摘　　要： 为提高断层及裂缝解释精度,众多地震属性体被广泛应用于辅助断层及裂缝解释,然而由于断层与裂缝在地质尺度上的差异,难以利用同一地震属性体同时进行对断层与裂缝的刻画。通过对川西地震断裂解释应用分析,认为该地区地震曲率属性对规模较大的断带具有较强的识别能力,特征清晰,但细节模糊;蚂蚁追踪在断裂精确定位、小断裂及裂缝带识别等细节表现方面具有优势,但连续性差、特征模糊。最终采用蚂蚁体与曲率融合属性进行断层、裂缝的综合刻画,可同时清晰识别规模大而连续的断层、规模小且带状分布的裂缝。通过岩心裂缝识别结果证明,蚂蚁体与曲率融合属性裂缝识别较为可信。 In order to improve the interpretation accuracy of fault and fracture, many seismic attribute data is widely used in aided fault and fracture interpretation, however due to differences in geological faults and cracks on the scale, it is difficult to use the same body at the same time to describe seismic attribute description of faults and cracks. The application analysis of the western Si- chuan earthquake fault show that the regional seismic curvature has strong ability to distinguish the larger thrust belt, and it has clear features, but the details are vague; ant tracking has advantages in precise positioning of faults, small faults and fracture zone identification, but the continuity is poor and the feature is fuzzy. Finally, the integrated description of the fault and fracture by using the fusion of ant body and curvature can identify large and continuous faults, small scale and zonal distribution. The identification results of core fracture show that the fracture identification of the fusion property of ant and curvature is more reliable.

关 键 词： 蚂蚁追踪 曲率 断层 裂缝 川西