Genetic Types and Source of the Upper Paleozoic Tight Gas in the Hangjinqi Area, Northern Ordos Basin, China
Joint Authors
Wu, Xiaoqi
Ni, Chunhua
Liu, Quanyou
Liu, Guangxiang
Zhu, Jianhui
Chen, Yingbin
Source
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-05-29
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
The molecular and stable isotopic compositions of the Upper Paleozoic tight gas in the Hangjinqi area in northern Ordos Basin were investigated to study the geochemical characteristics.
The tight gas is mainly wet with the dryness coefficient (C1/C1–5) of 0.853–0.951, and δ13C1 and δ2H-C1 values are ranging from -36.2‰ to -32.0‰ and from -199‰ to -174‰, respectively, with generally positive carbon and hydrogen isotopic series.
Identification of gas origin indicates that tight gas is mainly coal-type gas, and it has been affected by mixing of oil-type gas in the wells from the Shilijiahan and Gongkahan zones adjacent to the Wulanjilinmiao and Borjianghaizi faults.
Gas-source correlation indicates that coal-type gas in the Shiguhao zone displays distal-source accumulation.
It was mainly derived from the coal-measure source rocks in the Upper Carboniferous Taiyuan Formation (C3t) and Lower Permian Shanxi Formation (P1s), probably with a minor contribution from P1s coal measures from in situ Shiguhao zone.
Natural gas in the Shilijiahan and Gongkahan zones mainly displays near-source accumulation.
The coal-type gas component was derived from in situ C3t-P1s source rocks, whereas the oil-type gas component might be derived from the carbonate rocks in the Lower Ordovician Majiagou Formation (O1m).
American Psychological Association (APA)
Wu, Xiaoqi& Ni, Chunhua& Liu, Quanyou& Liu, Guangxiang& Zhu, Jianhui& Chen, Yingbin. 2017. Genetic Types and Source of the Upper Paleozoic Tight Gas in the Hangjinqi Area, Northern Ordos Basin, China. Geofluids،Vol. 2017, no. 2017, pp.1-14.
https://search.emarefa.net/detail/BIM-1155580
Modern Language Association (MLA)
Wu, Xiaoqi…[et al.]. Genetic Types and Source of the Upper Paleozoic Tight Gas in the Hangjinqi Area, Northern Ordos Basin, China. Geofluids No. 2017 (2017), pp.1-14.
https://search.emarefa.net/detail/BIM-1155580
American Medical Association (AMA)
Wu, Xiaoqi& Ni, Chunhua& Liu, Quanyou& Liu, Guangxiang& Zhu, Jianhui& Chen, Yingbin. Genetic Types and Source of the Upper Paleozoic Tight Gas in the Hangjinqi Area, Northern Ordos Basin, China. Geofluids. 2017. Vol. 2017, no. 2017, pp.1-14.
https://search.emarefa.net/detail/BIM-1155580
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1155580