3Dce prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" />chmetcnv w:st="on" TCSC="0" NumberType="1" Negative="False" HasSpace="False" SourceValue="3" UnitName="C">3C chmetcnv> seismic acquisition in ce w:st="on">ceName w:st="on">Western ceName> ceName w:st="on">Sichuan ceName> ceType w:st="on">Province ceType> ce>
详细信息
- 责任者：Liu Sheng (The Second Geophysical Service Company ; Southwest Bureau ; SINOPEC ; Deyang 618000 ; China) ; Li Shiqiong
- 刊名：Oil Geophysical Prospecting
- 出版年：2011
- 卷期：46(5)
- 关键词：三维地震法 ; three-dimensional seismic methods ; 多波地震勘探 ; multiwave seismic exploration ; 四川盆地 ; Sichuan Basin
- 页码：p.675-680
- 图表：3 illus., 1 table, 13 refs.
- 分类号：1600
- issnNo：ISSN1000-7210
- isbnNo：CN13-1095/TE
摘要
ChDivSummary name="EnDivSummary">Tight sandstone gas reservoirs of Xujiahe group deeply buried in West Sichuan Depression belong to non-conventional reservoirs with super density and rich fracture development.It is very difficult to detect fractures and identify reservoirs on conventional 3D seismic data.To solve these problems,this article proposes a 3D3C seismic geometry design method and proposes a series of 3D3C seismic techniques in the field,such as analysis and control of three-component geophones,and source parameter optimization etc.A new way called by’acquisition by steps and blocks’ is also introduced for overcoming large obstacles with limited equipment.Finally,high-quality 3D3C seismic data are acquired for reservoir characterization.