Identification of Deep Tight Gas Reservoirs in Western Sichuan Depression by Full-Wave Attributes
详细信息
- 责任者：Xu Tianji (State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation ; CDUT ; Chengdu 610059 ; China) ; Cheng Bingjie
- 刊名：Oil Geophysical Prospecting
- 出版年：2011
- 卷期：46(5)
- 关键词：深层气 ; deep gas ; 多波地震勘探 ; multiwave seismic exploration ; 四川 ; Sichuan Province
- 页码：p.749-756
- 图表：5 illus., 8 refs.
- 分类号：1600
- 出版序号：2003
- issnNo：ISSN1000-7210
- isbnNo：CN13-1095/TE
摘要
///Gas reservoirs in Xinchang gasfield, Western Sichuan Depression have some tough geologic conditions with complex structure, deep burying (about 5 000 m), strong anisotropy and strong concealment. For seismic response, sometimes P wave reflection is disordered and weak,and sometimes both P wave and S wave reflection are disordered and weak. Thank to 3D3C seismic data in the area, the authors utilize full-wave attributes to identify deep tight gas reservoirs by using some techniques including analysis of absorption and velocity dispersion, absorption prediction of tow-phase media, extraction of multi-scale absorption, analysis of frequency-dependent characters, elastic impedance coefficient inversion, pre-stack P and S wave joint inversion, post-stack P and S wave joint inversion. Full-wave attributes gas detection are carried out by P and S wave attributes and multi-wave attributes.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |