利用保持储层结构的地震反演表征曲流河储层构型  

Meandering river reservoir architecture characterization based on seismic inversion maintaining reservoir structure

作　　者：黄建廷 李浩 潘广明 吴金涛 黄奇 赵澄圣 HUANG Jianting;LI Hao;PAN Guangming;WU Jintao;HUANG Qi;ZHAO Chengsheng(CNOOC China Limited,Tianjin Branch,Tianjin 300459,China;Wuhan Times GeoSmart Science and Technology Co.,Ltd.,Wuhan,Hubei 430000,China)

机构地区：[1]中海石油(中国)有限公司天津分公司,天津300459 [2]武汉时代地智科技股份有限公司,湖北武汉430000

出　　处：《中国海上油气》2022年第5期94-100,共7页China Offshore Oil and Gas

摘　　要：以渤海Q油田明化镇组下段NmⅡ-1237砂体为例,针对海上油田稀井网条件下曲流河砂体分布问题,以曲流河沉积模式与定量知识库为指导,采用“层次分析、井震结合、模式拟合、动态验证”的构型研究思路,利用保持储层结构的波形相控反演数据,精细刻画表征了不同级次构型单元空间展布及其叠置关系,有效降低了井间储层构型预测的不确定性,提高了单一河道识别与划分的精度。分析了复合河道砂体叠置关系与砂体连通性,并总结了复合河道砂体内部单一河道砂体叠置模式,为油田开发井位部署与潜力挖潜提供了地质依据。Taking the NmⅡ-1237 sandbody in the lower member of Minghuazhen Formation in Bohai Q Oilfield as an example, based on the distribution of meandering river sandbodies under the condition of sparse well pattern in offshore oilfields, and with meandering river sedimentary model and quantitative knowledge base as the guidance, this paper characterizes finely the spatial distribution and superposition relationship of different levels of configuration units by using the configuration research idea of “analytic hierarchy process, well seismic combination, model fitting and dynamic verification” and the waveform facies-controlled inversion data maintaining reservoir structure, which effectively reduces the uncertainty of inter well reservoir configuration prediction, and improves the accuracy of single channel identification and division. The superposition relationship and connectivity of composite channel sandbodies are analyzed, and the superposition mode of single channel sandbodies in composite channel sandbodies is summarized. It provides a geological basis for well location deployment and potential tapping of oilfield development.

关 键 词：曲流河 储层构型 波形相控反演 砂体叠置关系 

分 类 号：TE31[石油与天然气工程—油气田开发工程]