Comparison of Experimental Adsorption between Shale Gas and Coalbed Gas
详细信息
- 责任者：Zhao Jin (Engineering Research Center for Gas Energy Development & Utilization ; Ministry of Education ; China University of Petroleum ; Beijing 102249 ; China) ; Zhang Suian
- 刊名：Natural Gas Geoscience
- 出版年：2013
- 卷期：24(1)
- 关键词：页岩气 ; shale gas ; 煤层气 ; coalbed gas
- 页码：p.176-181
- 图表：illus., 7 tables, 18 refs.
- 分类号：1003
- issnNo：ISSN1672-1926
- isbnNo：CN62-1177/TE
摘要
Based on coalbed methane adsorption,CBM is successfully developed.it is great effect on shale gas exploration to comparatively analysis of coal bed methane and shale gas adsorption.It is subjected to the isothermal adsorption experiment with different temperatures to describe adsorption characteristics between varioues TOC and thermal maturity shale and different rank coal.The results shows that the adsorption quantity of methane on shale and coal decrease with temperature increase,but it is more sensitive for gas shale adsorption to temperature than that for coal.PL value in coal is negatively correlated with RO and positive with organic matter content,VL value in coal is positive correlated with Ro and negative with matter content;in constrast,PL and VL of shale decrease with RO and increase with organic matter content.Methane adsorption quantity for coal is more than that for shale.It is more noticeable effect on CBM production by means of pressure step-down desorption than that on gas shale development.
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