华南地震2024，Vol.44Issue(2)：102-109,8.DOI:10.13512/j.hndz.2024.02.12
OBN宽方位地震在潜山勘探中的应用
Application of OBN with Wide Azimuth Seismic Survey in Buried Hill Exploration
薛志刚 1张振波 1刘铮 1邱能根2
作者信息
- 1. 中海石油(中国)有限公司深圳分公司,深圳 518067
- 2. 中海油能源发展股份有限公司工程技术深圳分公司,深圳 518067
- 折叠
摘要
Abstract
The Ocean Bottom Node(OBN)is widely employed in offshore oil and gas exploration owing to its flexible construction,easy obstacle avoidance,and wide azimuth.OBN 3D seismic acquisition was carried out for the first time in the South China Sea for the fractured reservoir of HZ26-6 buried hill in Zhuyi Depression,the Pearl River Mouth Basin,and wide azimuth seismic data were obtained.Offset Vector Tile(OVT)gathers were extracted after signal preprocessing,noise attenuation,signal deconvolution,wave field separation,and multiple attenuation.Subsequently,the study conducted multi-azimuth grid tomographic velocity modeling and prestack depth migration to obtain abundant azimuthal anisotropy information.The comparison of new and old imaging data shows that OBN with wide azimuth acquisition can effectively avoid the influence of seabed obstacles.The processed seismic data exhibits a high signal-to-noise ratio and superior imaging of buried hilltop and interior faults.The amplitude anisotropy ellipse fitting has great potential for predicting buried hill fracture reservoirs.关键词
OBN/宽方位/潜山/椭圆拟合/裂缝预测Key words
Ocean Bottom Node/Wide azimuth/Buried hill/Ellipse fitting/Fracture prediction分类
天文与地球科学引用本文复制引用
薛志刚,张振波,刘铮,邱能根..OBN宽方位地震在潜山勘探中的应用[J].华南地震,2024,44(2):102-109,8.
