X-CT Response and Physical Properties of Multiple Coal Seams on Drilling Columnar Section its Geological Implication
详细信息
- 责任者：Yang Zhaobiao (Key Laboratory of Coalbed Methane Resources and Reservoir Formation Process ; CUMT ; Ministry of Education ; China University of Mining and Technology ; Xuzhou 221008 ; China) ; Qin Yong
- 刊名：Geological Journal of China Universities
- 出版年：2012
- 卷期：18(3)
- 关键词：煤储层 ; coal reservoirs ; 非均质性 ; heterogeneity
- 页码：p.511-515
- 图表：2 illus., 2 tables, 7 refs.
- 分类号：1004
- issnNo：ISSN1006-7493
- isbnNo：CN32-1440/P
摘要
Based on physical properties of X-CT on different coal seams in histogram section of borehole, physical properties of coal seams and its heterogeneity on vertical sequence were analyzed. The research found that the pores diffusely distributed in coal of No.3, 14, 23 and 26 coal seams are well developed in study area, and the fractures are not well-developed and mostly filled by minerals. The results showed that the deviation of main coal seams from four sequences of study showed a single peak distribution in the vertical direction, and the deviation of sequence Ⅲ was that the biggest, which implied that the heterogeneity of sequence Ⅲ was the strongest, which also showed the heterogeneity of coal reservoir can be quantitative by the CT method.
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