Geophysical Characteristics of Shale Gas Reservoir and Its Identification Method
详细信息
- 责任者：Li Shuguang (Deyang Branch ; Research Institute of Exploration and Development ; Southwest Oil-Gas Company ; SINOPEC ; Deyang 618000 ; China) ; Cheng Bingjie
- 刊名：Xinjiang Petroleum Geology
- 出版年：2011
- 卷期：32(4)
- 关键词：页岩气 ; shale gas ; 地球物理测井 ; geophysical logging ; 储集层 ; reservoirs ; 地震勘探 ; seismic exploration
- 页码：p.351-352
- 图表：1 table, 12 refs.
- 分类号：1600
- issnNo：ISSN1001-3873
- isbnNo：CN65-1107/TE
摘要
Shale gas is the focal point of the new energy strategy in China. The shale gas reservoir is normally of features of high gamma ray, low sonic velocity, low density and high resistivity, etc., by which the reservoir can be identified. However, because of its low porosity, and gas accumulation is mainly controlled by the degree of fractures, the geophysical prospecting of shale gas is based on detecting the development level and direction of shale fractures to determine the favorable zones of shale reservoirs. This paper presents the fracture-detecting and identifying methods, such as anisotropy, shear wave splitting, curvature and coherent attribute, frequency-dependent AVO, etc.