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Effects of Different Penetration Patterns on a Fault during Underground Fluid Injection
Joint Authors
Liang, Lixi
Wei, Xiaochen
Li, Qi
Li, Xiaying
Niu, Zhiyong
Liu, Xiangjun
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-04-08
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
At underground fluid injection sites with natural faults, understanding how to avoid the subsequent fault reactivation and induced seismicity plays a crucial role in the success of subsurface anthropogenic activities.
In this work, with the objective of avoiding risky faults in site selection in the Shengli Oilfield, we investigated the faults that are usually encountered in the target demonstration zone; based on the geophysical observations of fault structures, we designed different fault tectonic scenarios to investigate the different penetration patterns of faults.
We used the finite element-based numerical method to assess the influence of the effective lateral and vertical reservoir transmissivity in each fault penetration pattern.
Our results indicate that when a permeable fault intersects into the target reservoir, it presents both barrier effect to reservoir transmissivity within the target reservoir and hydraulic connection between reservoirs.
The effective lateral reservoir transmissivity is dominated by the barrier effect of the fault, and the effective vertical reservoir transmissivity is dominated by the hydraulic connection between reservoirs.
Relatively impermeable faults with less contact with the target aquifer make higher effective lateral reservoir transmissivity and lower effective vertical reservoir transmissivity, which would mitigate the risk of caprock failure and the magnitude of the induced seismicity.
American Psychological Association (APA)
Wei, Xiaochen& Li, Qi& Li, Xiaying& Niu, Zhiyong& Liu, Xiangjun& Liang, Lixi. 2019. Effects of Different Penetration Patterns on a Fault during Underground Fluid Injection. Geofluids،Vol. 2019, no. 2019, pp.1-15.
https://search.emarefa.net/detail/BIM-1152705
Modern Language Association (MLA)
Wei, Xiaochen…[et al.]. Effects of Different Penetration Patterns on a Fault during Underground Fluid Injection. Geofluids No. 2019 (2019), pp.1-15.
https://search.emarefa.net/detail/BIM-1152705
American Medical Association (AMA)
Wei, Xiaochen& Li, Qi& Li, Xiaying& Niu, Zhiyong& Liu, Xiangjun& Liang, Lixi. Effects of Different Penetration Patterns on a Fault during Underground Fluid Injection. Geofluids. 2019. Vol. 2019, no. 2019, pp.1-15.
https://search.emarefa.net/detail/BIM-1152705
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1152705