中国石油大学学报（自然科学版）2024，Vol.48Issue(1)：55-62,8.DOI:10.3969/j.issn.1673-5005.2024.01.006
面向深部地热岩体的弹性波逆时偏移成像方法
Elastic wave reverse time migration imaging method for deep geothermal rock mass
摘要
Abstract
Geothermal energy is gaining global attention as a clean energy source,underscoring the significance of precise imaging of deep geothermal reservoirs.The conventional elastic reverse time migration(E-RTM)technique relies on direct imaging of coupled P-and S-waves,which often leads to imaging artifacts and unclear images.In this study,we propose an approach based on the decoupled elastic wave equation to independently handle P-and S-wavefields.We apply this approach to two typical hot dry rock models using inner product imaging conditions.The numerical simulations demonstrate that the de-coupled elastic wave imaging profiles provide clearer event representations and a more evenly distributed energy profile in the deeper regions compared to imaging results obtained from coupled wavefields.This method showcases the potential for achie-ving high-quality imaging of deep geothermal reservoirs.关键词
深部地热岩体/弹性波成像/纵横波分离/逆时偏移Key words
deep geothermal rock mass/elastic wave imaging/separation of P-and S-waves/reverse time migration分类
天文与地球科学引用本文复制引用
黄建平,杨秀金,张鑫,王扬州,陈亮,高建明..面向深部地热岩体的弹性波逆时偏移成像方法[J].中国石油大学学报（自然科学版）,2024,48(1):55-62,8.基金项目
山东能源集团深层高温地热重大科技项目(SNKJ2022A06-R23) （SNKJ2022A06-R23）
山东省海洋科技基金青岛海洋科学与技术国家试点实验室(2021QNLM020001) （2021QNLM020001）
创新研究群体项目(41821002) （41821002）
国家自然科学基金优秀青年项目(海外)(ZX20230152) （海外）
中国石油重大科技专项(ZD2019-183-003) （ZD2019-183-003）
