石油物探2018，Vol.57Issue(2)：155-178,24.DOI:10.3969/j.issn.1000-1441.2018.02.001
OVT数据域五维地震资料解释技术研究现状与进展
Research status and progress of 5D seismic data interpretation in OVT domain
摘要
Abstract
Wide azimuth (WAZ) seismic is a seismic acquisition with a ratio of transverse to longitudinal receiver unit size larger than 0.5.Using WAZ seismic acquisition,a 3D seismic data volume with observation azimuth,offset and uniform folds can be economically obtained.With Offset Vector Tile (OVT) processing,5D seismic prestack gathers may be generated from WAZ seismic data,enabling 5D seismic data interpretation (5D seismic data is the 3D WAZ seismic data including offset and azimuth information).This paper first gives an overview of WAZ and OVT,their evolution and innovations on seismic interpretation.Then,the theoretical foundations of 5D seismic interpretation in the OVT domain is addressed based on anisotropy theory.Discussion focuses on 5D seismic interpretation,including structure interpretation,stratigraphic interpretation,lithologic interpretation,fluid identification,fracture prediction and earth stress study.Theoretical analysis and data tests showed that 5D seismic interpretation of OVT gathers could help improve azimuthal anisotropy analysis and interpretation validity.OVT processing is more than a technology,but a thought.Interpretation of 5D seismic gathers in the OVT domain is a general trend of seismic interpretation.关键词
宽方位/OVT数据域/方位各向异性/五维地震资料解释/裂缝预测/流体识别/地应力Key words
wide azimuth(WAZ)/Offset Vector Tile (OVT)/azimuthal anisotropy/5D seismic data interpretation/fracture prediction/fluid identifications/earth stress分类
天文与地球科学引用本文复制引用
印兴耀,张洪学,宗兆云..OVT数据域五维地震资料解释技术研究现状与进展[J].石油物探,2018,57(2):155-178,24.基金项目
国家自然科学基金-石油化工基金联合重点项目(U1562215)、国家自然科学基金(41604101)、国家油气重大专项课题(2016ZX05024-004)、中央高校基本科研业务费专项资金和中石化地球物理重点实验室开放基金(33550006-15-FW2099-0027)资助.This research is financially supported by the Natural Science Foundation of China (Grant Nos.U1562215,41604101),the National Grand Project for Science and Technology (Grant No.2016ZX05024-004),the Fundamental Research Funds for the Central Universities and the Science Foundation from SINOPEC Key Laboratory of Geophysics (Grant No.33550006-15-FW2099-0027). （U1562215）
