碳酸盐岩孔洞储层地震物理模型研究  

Seismic physical model of carbonate cavern reservoirs

作　　者：李凡异[1,2] 魏建新[2] 狄帮让[2] 潘文庆[3] 郑多明[3] 

机构地区：[1]中海油研究总院,北京100028 [2]中国石油大学(北京)油气资源与探测国家重点实验室,北京102249 [3]中国石油塔里木油田分公司勘探开发研究院,新疆库尔勒841000

出　　处：《石油地球物理勘探》2016年第2期272-280,205,共9页Oil Geophysical Prospecting

基　　金：国家科技重大专项(2011ZX05007-006)资助

摘　　要：根据塔里木H工区碳酸盐岩孔洞储层的地质地震综合解释成果,通过改进地震物理模型制作工艺,构建了一个与该区实际地层参数相近的三维碳酸盐岩孔洞储层精细物理模型。严格按照实际地震资料的采集参数和处理流程对物理模型进行了地震数据采集和处理,获得了与实际地震数据相匹配的物理模型地震数据体。最后,对孔洞储层的纵向分辨率、横向分辨率以及孔洞储层体积校正等问题进行了讨论:认为阻抗反演可有效提高孔洞储集体纵向识别能力;从物理模型研究的角度得到横向识别多洞的最小距离;利用物理模型数据建立了孔洞储集体校正量板,有助于实际孔洞储集体体积的估算。We present here our research on seismic physical model of carbonate cavern reservoir.First a three-dimensional cavern physical model is built with parameters similar to practical counterparts based on geological seismic interpretation of carbonate cave reservoirs in the H area,Tarim Basin.Then seismic data of physical model is obtained according to practical seismic data acquisition and processing procedures.Finally,vertical and horizontal resolution and cave volume calibration are analyzed.Impedance inversion can effectively improve the vertical resolution of caves.Minimum cave horizontal distance which can be identified is obtained from model analysis.The relationship between seismic attribute volume and real cave volume is analyzed.Calibration templates for reservoir volume estimation are generated to estimate fracture-cavern reservoir volume on seismic data.

关 键 词：碳酸盐岩 孔洞储层 地震物理模型 塔里木盆地 

分 类 号：P631.41[天文地球—地质矿产勘探]