Occurrence and Origin of H2S from Volcanic Reservoirs in Niudong Area of the Santanghu Basin, NW China
Joint Authors
Zhao, Yi-Dong
Martinelli, Giovanni
Ma, Xiangxian
Zheng, Guodong
Liang, Minliang
Xie, Dianhe
Sajjad, Wasim
Xu, Wang
Fan, Qiaohui
Li, Liwu
Du, Li
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-06-02
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
A series of samples including natural gas, formation water, and rocks were collected from volcanic rock reservoirs in the Niudong area of the Santanghu Oilfields and analyzed for their mineral and/or chemical compositions and sulfur and carbon isotopes in order to investigate the occurrence and origin of hydrogen sulfide (H2S).
H2S was mostly dissolved in the formation water along with petroleum production in the study area.
The δ34S values of on-well H2S samples varied in a range of 9.2‰ to 20.5‰, probably indicating thermochemical sulfate reduction (TSR) and/or thermal decomposition of organic sulfur-bearing compounds (TDS) as the genetic process for H2S.
However, the chemical composition of formation waters from the Kalagang Formation (C2k) and their coefficient of desulfurization also revealed that TSR could be the main principle for H2S formation.
Considering the regional geological background, especially the tectonic structures and thermal evolution features of the basin, it was concluded that H2S in the study area was dominantly produced by thermal genesis with TSR as a domain through interactions between hydrocarbons and aqueous sulfate dissolved from sulfate minerals.
American Psychological Association (APA)
Ma, Xiangxian& Zheng, Guodong& Liang, Minliang& Xie, Dianhe& Martinelli, Giovanni& Sajjad, Wasim…[et al.]. 2019. Occurrence and Origin of H2S from Volcanic Reservoirs in Niudong Area of the Santanghu Basin, NW China. Geofluids،Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1152472
Modern Language Association (MLA)
Ma, Xiangxian…[et al.]. Occurrence and Origin of H2S from Volcanic Reservoirs in Niudong Area of the Santanghu Basin, NW China. Geofluids No. 2019 (2019), pp.1-10.
https://search.emarefa.net/detail/BIM-1152472
American Medical Association (AMA)
Ma, Xiangxian& Zheng, Guodong& Liang, Minliang& Xie, Dianhe& Martinelli, Giovanni& Sajjad, Wasim…[et al.]. Occurrence and Origin of H2S from Volcanic Reservoirs in Niudong Area of the Santanghu Basin, NW China. Geofluids. 2019. Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1152472
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1152472