New Approaches and Markers for Identifying Secondary Biogenic Coalbed Gas
文献类型：期刊论文
| 作者 | Tao Mingxin1; Li Jing1; Li Xiaobin1,2; Ma Yuzhen1; Li Zhongping2; Wang Zuodong2; Gao Zhongliang1; Zhang Xiaojun2; Wang Yanlong3 |
| 刊名 | ACTA GEOLOGICA SINICA-ENGLISH EDITION
 |
| 出版日期 | 2012-02-01 |
| 卷号 | 86期号:1页码:199-208 |
| 关键词 | secondary biogenic gas thermogenic coalbed gas components and isotopes secondary change mixing effect differentiating markers |
| ISSN号 | 1000-9515 |
| DOI | 10.1111/j.1755-6724.2012.00622.x |
| 文献子类 | Article |
| 英文摘要 | According to the adsorption-desorption characteristics of coalbed gas and analysis of various experimental data, this paper proposes that the generation of secondary biogenic gas (SBG) and its mixing of with the residual thermogenic gas at an early stage inevitably lead to secondary changes of the thermogenic gas and various geochemical additive effects. Experimental results also show that the fractionation of the carbon isotope of methane of coal core desorption gas changes very little; the d13C1 value of the mixed gas of biogenic and thermogenic gases is between the d13C1 values of the two original gases, and the value is determined by the carbon isotopic compositions and mixing proportions of the two original methanes. Therefore this paper proposes that the study on the secondary changes of the thermogenic gas and various additive effects is a new effective way to study and identify SBG. Herein, a systematic example of research on the coalbed gas (Huainan coalbed gas) is further conducted, revealing a series of secondary changes and additive effects, the main characteristics and markers of which are: (1) the contents of CO2 and heavy-hydrocarbons decrease significantly; (2) the content of CH4 increases and the gas becomes drier; (3) the d13C and dD values of methane decrease significantly and tend to have biogenetic characteristics; and (4) the values of d13C2 and d13Cco2 grow higher. These isotopic values also change with the degradation degrees by microbes and mixing proportions of the two kinds of gases in different locations. There exists a negative correlation between the d13C1vsd13Cco2 values. The ?d13Cc2c1 values obviously become higher. The distributions of the ?d13Cco2c1 values are within certain limits and show regularity. There exist a positive correlation between the N2 versus Ar contents, and a negative correlation between the N2 versus CH4 contents, indicating the down forward infiltration of the surface water containing air. These are important markers of the generation and existence of SBG. |
| WOS关键词 | NATURAL GASES ; CHINA ; BASIN ; METHANE ; ORIGIN ; GEOCHEMISTRY ; POLAND ; COALFIELD ; FEATURES ; PROVINCE |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000300871900017 |
| 出版者 | WILEY-BLACKWELL |
| 资助机构 | Chinese Natural Science Foundation(41172107 ; Chinese Natural Science Foundation(41172107 ; 973 National Project(2002CB211701) ; 973 National Project(2002CB211701) ; 40872096) ; 40872096) ; Chinese Natural Science Foundation(41172107 ; Chinese Natural Science Foundation(41172107 ; 973 National Project(2002CB211701) ; 973 National Project(2002CB211701) ; 40872096) ; 40872096) ; Chinese Natural Science Foundation(41172107 ; Chinese Natural Science Foundation(41172107 ; 973 National Project(2002CB211701) ; 973 National Project(2002CB211701) ; 40872096) ; 40872096) ; Chinese Natural Science Foundation(41172107 ; Chinese Natural Science Foundation(41172107 ; 973 National Project(2002CB211701) ; 973 National Project(2002CB211701) ; 40872096) ; 40872096) |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/84244]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Tao Mingxin |
| 作者单位 | 1.Beijing Normal Univ, Coll Resource Sci & Technol, Key Lab Environm Change & Nat Disaster, Minist Educ, Beijing 100875, Peoples R China 2.Chinese Acad Sci, Key Lab Petr Resources Res, Inst Geol & Geophys, Lanzhou 730000, Peoples R China 3.China Coal Res Inst, Xian Branch, Xian 710054, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tao Mingxin,Li Jing,Li Xiaobin,et al. New Approaches and Markers for Identifying Secondary Biogenic Coalbed Gas[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2012,86(1):199-208. |
| APA | Tao Mingxin.,Li Jing.,Li Xiaobin.,Ma Yuzhen.,Li Zhongping.,...&Wang Yanlong.(2012).New Approaches and Markers for Identifying Secondary Biogenic Coalbed Gas.ACTA GEOLOGICA SINICA-ENGLISH EDITION,86(1),199-208. |
| MLA | Tao Mingxin,et al."New Approaches and Markers for Identifying Secondary Biogenic Coalbed Gas".ACTA GEOLOGICA SINICA-ENGLISH EDITION 86.1(2012):199-208. |
入库方式： OAI收割
来源：地质与地球物理研究所
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