地震反演成果的沉积学解释

SEDIMENT LOGICAL INTERPRETATION FOR SEISMIC INVERSION RESULTS

杨贵祥 黄捍东 高锐 张如伟 赵迪

Yang Guixiang Huang H ong Gao Rui Zhang Ruwei

中国地质科学院地质研究所, 北京 100037 2. 中国石油化工股份有限公司华东分公司, 南京 210011 3. 油气资源与探测国家重点实验室, 中国石油大学, 北京 102249 4. 地球探测与信息技术北京市重点实验室, 北京 102249 5. 广州海洋地质调查局, 广州 510760

Institute of Geology Chinese Academy of Geological Sciences, Beijing 100037, China 2. East China branch, SINOPEC, Nanjing, Jiangsu 210011, China 3. State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing 102249, China 4. Key Laboratory of Earth Prospecting and Information Technology, Beijing 102249, China 5. Guangzhou Marine Geological Survey, Guangzhou, Guangdong 510760, China

在油气藏勘探和开发中,沉积特征的研究具有重要意义,而将地震反演技术与沉积学原理结合进行沉积特征的刻画,是目前利用地震资料开展沉积微相研究最有效的方法.为了使反演结果贴近地下地质特征,将地震相控概念引入非线性随机反演中,在CZ凹陷C15井区进行探索性应用,以地震沉积学理论为指导,结合地震相分析,基于高精度地震反演成果进行了沉积特征解释,比直接在地震剖面上进行沉积描述具有更高的可靠性,获得了比较精细的沉积微相描述.

Research of sedimentary characteristics is very important in the process of reservoir exploration and development.Seismic inversion technology is combined with sedimentological principle to characterize sedimentary features,which is the most effective method to carry on sedimentary microfacies research based on seismic data.Seismic phase-controlled concept is br ought into nonlinear random inversion to make inversion results approach geological features.Guided by seismic sedimentology theory,combined with seismic facies analysis technique,based on high-accuracy seismic inversion results,sedimentary features are interpreted in well area C15 of CZ depression as a exploratory application,which has higher reliability than sedimentary features characterized directly on seismic section and yields better fine sedimentary microfacies characterization.

https://doi.org/10.11781/sysydz200904415