DOI: 10.1306/08031514030
Scopus记录号: 2-s2.0-84961620183
论文题名: Identification and calculation of transfer overpressure in the northern Qaidam Basin, northwest China
作者: Fan C. ; Wang Z. ; Wang A. ; Fu S. ; Wang L. ; Zhang Y. ; Kong H. ; Zhang X.
刊名: AAPG Bulletin
ISSN: 0149-1440
EISSN: 1558-9170
出版年: 2016
发表日期: 2016
卷: 100, 期: 1 起始页码: 23
结束页码: 39
语种: 英语
Scopus关键词: Aquifers
; Conducting layers
; Effective stress
; Hydrocarbon exploration
; Northern Qaidam Basin
; NorthWest China
; Overpressure
; Study areas
; Vertical fault
; Acoustic wave velocity
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: The origin of the overpressure in the northern Qaidam Basin has not been clearly understood, which has caused some difficulties in hydrocarbon exploration. Using a compaction study, we applied a modified acoustic-velocity and effective-stress diagram to identify the overpressure transfer in the study area. This phenomenon has not been discussed in previous studies. For the present study, we approximately calculated the magnitude of the transfer overpressure and analyzed the cause of the over-pressured aquifer at the crest of the anticline in the study area. Our study indicates that the effect of overpressure transfer is very distinct, and the largest contribution to the total overpressure is 57%. The main media of overpressure transfer include vertical faults and lateral conducting layers. The vertical faults can connect deep overpressured strata, and the lateral conducting layers can connect overpressured strata at the top and wing of the anticline. During anticline formation, the crest fractures, and then the overpressured water in the anticline wing flows into the fractured crest and forms the overpressure compartment that prevents the charging of deeper natural gas. Copyright © 2016. The American Association of Petroleum Geologists. All rights reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84961620183&doi=10.1306%2f08031514030&partnerID=40&md5=62a9f098f3f1ff841ef06b0447ecf99f
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13011
Appears in Collections: 过去全球变化的重建 影响、适应和脆弱性 科学计划与规划 气候变化与战略 全球变化的国际研究计划 气候减缓与适应 气候变化事实与影响
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Recommended Citation:
Fan C.,Wang Z.,Wang A.,et al. Identification and calculation of transfer overpressure in the northern Qaidam Basin, northwest China[J]. AAPG Bulletin,2016-01-01,100(1)