石油科学通报2023，Vol.8Issue(6)：738-754,17.DOI:10.3969/j.issn.2096-1693.2023.06.068
窄方位拖缆地震数据角度域成像处理及各向异性特征研究
Angle domain imaging processing and anisotropic characteristics of narrow azimuth streamer seismic data
摘要
Abstract
Due to the narrow azimuth range of offshore streamer seismic data,it is often limited in predicting complex reservoirs such as fractures using anisotropic features.Therefore,how to effectively increase the azimuth range of offshore streamer data,extract the anisotropic features of the imaging gather,and characterize fractured reservoirs is crucial.The paper studies the imaging processing methods for narrow azimuth streamer seismic data and analyzes the anisotropic characteristics of processed gathers.We establish a set of effective imaging processing flow of narrow azimuth towing cable data.On this basis,an effective prestack anisotropy inversion is carried out to show the underground fracture density.By using local angle domain imaging processing technology,the azimuth information of narrow azimuth streamer seismic data can be increased,and has the ability to output the omni-directional reflection gather data in the angle domain.In this paper,the seismic data of the buried hill exploration area in the Pearl River Mouth Basin are selected for application research,and the omni-directional migration imaging results significantly improve the imaging effect of the buried hill fracture development area.Moreover,the parameters characterizing the development of fractures in the buried hill can be effectively inverted by using omni-directional angle domain reflection gather data.The actual data application results indicate that the narrow azimuth streamer data imaging processing technology in the angle domain and the anisotropic parameter inversion method proposed in the paper can effectively describe buried hill fracture reservoirs,determine high-quality target areas for fracture development,and can be applied in the exploration and development of other similar buried hill hydrocarbon reservoirs.关键词
拖缆数据/窄方位/各向异性/局部角度域/方位道集Key words
streamer data/narrow azimuth/seismic anisotropy/local angle domain/azimuth gathers引用本文复制引用
刘军,刘道理,邹雅铭,白海军,张文珠,王清辉,王国权..窄方位拖缆地震数据角度域成像处理及各向异性特征研究[J].石油科学通报,2023,8(6):738-754,17.基金项目
国家自然科学基金项目(41574108,42174130)、物探应用基础实验和前沿理论方法研究(2022DQ0604-03)联合资助 （41574108,42174130）
