石油物探2025，Vol.64Issue(3)：397-415,19.DOI:10.12431/issn.1000-1441.2025.0054
中国海洋深水区油气地球物理勘探技术进展
Advances in deepwater hydrocarbon geophysical exploration technologies in China
摘要
Abstract
Petroleum exploration in deep to ultra-deep sea areas is important to offshore reserve and production increase in China.In view of complicated structural setting and high cost of production,offshore petroleum exploration and development with high quality and high efficiency rely on geophysical techniques to obtain high-graded reserves of scale and rapid production increase without drilling many wells.Thanks to theoretical innovation and technical application in the latest years,some medium-and large-sized fields,e.g.Lingshui 17-2,Lingshui 25-1,Baodao 21-1,Kaiping 11-4,and Kaiping 18-1,have been successfully discovered in deep to ultra-deep areas,the South China Sea.These discoveries have also advanced geophysical techniques.We use several case studies to illustrate the challenges and solutions in deep-sea prospecting.Varying layout acquisition is a proven solution to the complexities caused by submarine relief,sea water depth,and abrupt tectonic change to obtain high-quality seismic data.With respect to heterogeneous water velocity,multiple and ghost reflections,complex wave field induced by irregular sea bottom,and inaccurate velocity in a complex structural zone,such broadband techniques as high-precision velocity analysis through full waveform inversion and viscoelastic prestack depth migration are employed to improve the resolution and signal-to-noise ratio of seismic data.Rock physical experiments,seismic response analysis,and rock physical modeling are established to improve reservoir prediction,fluid detection,prestack source rock prediction,and non-bright spot gas identification.The article concludes with the thoughts and suggestions for the future technical development of abyssal petroleum geophysical exploration in China.关键词
中国海域/深水区/油气勘探/超深水/古近系/岩性勘探Key words
China offshore/deep water area/petroleum exploration/ultra-deep water/Paleogene/lithological exploration分类
石油、天然气工程引用本文复制引用
谢玉洪,王建花,袁全社..中国海洋深水区油气地球物理勘探技术进展[J].石油物探,2025,64(3):397-415,19.基金项目
国家自然科学基金项目(U23B20158)、中国工程院战略研究与咨询项目(2022-XBZD-08-01)和中海油有限公司科研项目(KJZH-2021-0003-00)共同资助.This research is financially supported by the National Natural Science Foundation of China(Grant No.U23B20158),the Strategy Research and Consulting Project of the Chinese Academy of Engineering(Grant No.2022-XBZD-08-01)and the Research Project of CNOOC Limited(Grant No.KJZH-2021-0003-00). （U23B20158）
