Lithologic Reservoirs ›› 2008, Vol. 20 ›› Issue (2): 54-59.doi: 10.3969/j.issn.1673-8926.2008.02.009

Previous Articles     Next Articles

Char acter istics and geological significance of seismites of Paleogene in Yangxin Subsag of J iyang Depr ession

WANG Ke1, LIU Xianyang1, ZHAO Weiwei2, SONG Jianghai1, SHI Zhenfeng3, XIANG Hui1   

  1. 1. Research Institute of Petroleum Exploration and Development, Changqing Oilfield Company, PetroChina, Xi’an 710021, China; 2. School of Petroleum Resources, Xi’an Shiyou University, Xi’an 710065, China; 3. Department of Exploration, Changqing Oilfield Company, PetroChina, Xi’an 710021, China
  • Online:2008-06-15 Published:2008-06-15

PDF (PC)

934

Abstract:

Seismite is a type of catastrophic deposits with recognizable evidence for seismic activities and sequence. According to core observation and description, many deformation structures with seismite characteristics are recognized within sandstone and shale sedimentary strata of Paleogene continental faulted basin in Yangxin Subsag, such as micro-faults, earthquake fissures, liquefaction sandstone veins, water-escape structure, vibrational liquefaction deformation structure, seismic pillow structure and associated structure, etc. The vertical sequence of seismites in Yangxin Subsag, in ascending order, is underlying unshocked layer, micro-faults layer, autoclastic shattered breccia layer, vibrational liquefaction deformation structure layer, seismic pillow structure and associated structure layer, liquefied homogeneous layer and overlying unshocked layer, which corresponds to different earthquake intensity respectively. The discovery of seismites can be used to analyze the intensive activity stages of basincontrolling boundary fault, and seismite itself is a kind of potential reservoir, so it has important geological significance for studying earthquake event deposit.

Key words: strategic decision, risk decision-making, oil and gas discovery, imagery thinking, flexibility of thinking, multidisciplinary analysis ability

[1] ZHANG Xia. [J]. Lithologic Reservoirs, 2008, 20(3): 12-16.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] WEI Qinlian, ZHENG Rongcai, XIAO Ling,WANG Chengyu, NIU Xiaobing. Influencing factors and characteristics of Chang 6 reservoir in Wuqi area, Ordos Basin[J]. Lithologic Reservoirs, 2007, 19(4): 45 -50 .
[2] WANG Dongqi, YIN Daiyin. Empirical formulas of relative permeability curve of water drive reservoirs[J]. Lithologic Reservoirs, 2017, 29(3): 159 -164 .
[3] LI Yun, SHI Zhiqiang. Study on fluid inclusion of tight sandstone reservoir of Upper Triassic Xujiahe Formation in central Sichuan Basin[J]. Lithologic Reservoirs, 2008, 20(1): 27 -32 .
[4] JIANG Ren, FAN Tailiang, XU Shouli. Concept and techniques of seismic geomorphology[J]. Lithologic Reservoirs, 2008, 20(1): 33 -38 .
[5] ZOU Mingliang, HUANG Sijing, HU Zuowei, FENG Wenli, LIU Haoniannian. The origin of carbonate cements and the influence on reservoir quality of Pinghu Formation in Xihu Sag, East China Sea[J]. Lithologic Reservoirs, 2008, 20(1): 47 -52 .
[6] WANG Bingjie, HE Sheng, NI June, FANG Du. Activity analysis of main faults in Qianquan area, Banqiao Sag[J]. Lithologic Reservoirs, 2008, 20(1): 75 -82 .
[7] CHEN Zhenbiao, ZHANG Chaomo, ZHANG Zhansong, LING Husong, SUN Baodian. Using NMR T2 spectrum distribution to study fractal nature of pore structure[J]. Lithologic Reservoirs, 2008, 20(1): 105 -110 .
[8] ZHANG Houfu, XU Zhaohui. Discussion on stratigraphic-lithologic reservoirs exploration in the aspect of the research history of reservoirs[J]. Lithologic Reservoirs, 2008, 20(1): 114 -123 .
[9] ZHANG Xia. Cultivation of exploration creativity[J]. Lithologic Reservoirs, 2007, 19(1): 16 -20 .
[10] YANG Wuyang, YANG Wencai, LIU Quanxin, WANG Xiwen. 3D frequency and space domain amplitude-preserved migration with viscoelastic wave equations[J]. Lithologic Reservoirs, 2007, 19(1): 86 -91 .
TRENDMD:

Copyright © 2018 Lithologic Reservoirs

Support by Beijing Magtech support@magtech.com.cn