基于方位各向异性理论的地震预测裂缝方法及应用综述  

Seismic fracture prediction method based on azimuthal anisotropy theory and its application

作　　者：饶溯 孙福亭 汪洪强 杜思耕 李春鹏 Rao Su;Sun Futing;Wang Hongqiang;Du Sigeng;Li Chunpeng(CNOOC International Co.,Ltd.,Beijing 100028,China)

机构地区：[1]中海石油国际能源服务(北京)有限公司,北京100028

出　　处：《能源与环保》2021年第5期152-156,共5页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：“十三五”国家科技重大专项资助项目(2017ZX05032-003,2017ZX05032-004)。

摘　　要：裂缝预测在碳酸盐岩储层评价中是至关重要的,预测裂缝的方法主要包括基于岩芯观察描述、测井识别裂缝、地震资料预测裂缝等。重点阐述了地震预测裂缝的4种方法,如多波多分量预测裂缝、P-S转换波预测裂缝、VSP地震预测裂缝以及纵波AVAZ预测裂缝。综合比较各种方法的原理和费用投资情况认为,纵波AVAZ预测裂缝是一种有效且价格相对合理的方法。最后介绍了纵波AVAZ预测裂缝方法在A油田的应用实例,有一定的预测效果。Fracture prediction is very important in carbonate reservoir evaluation.The fracture prediction methods mainly include core observation description,logging identification of fractures,seismic data prediction of fractures and so on.The four methods of earthquake prediction fractures are mainly described,such as multi wave and multi-component prediction fractures,P-S conversion wave prediction fractures,VSP earthquake prediction fractures and longitudinal wave AVAZ prediction fractures.By comparing the principles and cost investment of various methods,it is concluded that P-wave AVAZ is an effective and relatively reasonable method for fracture prediction.Finally,the application example of P-wave AVAZ fracture prediction method in a oilfield is introduced,which has certain prediction effect.

关 键 词：方位各向异性 多波多分量 VSP P-S转换波 纵波AVAZ 

分 类 号：P631[天文地球—地质矿产勘探]