Seismic damage zone and width–throw scaling along the strike-slip faults in the Ordovician carbonates in the Tarim Basin
投稿时间:2018-04-11  
英文关键词:Fault damage zone, Carbonate, Throw, Scaling, Evolution, Tarim Basin
基金项目:Tarim Oil Company data access and research support are gratefully acknowledged. The authors are grateful to Anita Torabi (Uni Research CIPR, Bergen, Norway) for her constructive comments that substantially improved the manuscript. The authors thank the reviewers and editors for their detailed comments. We thank Xin Liu, Taiping Hu and Fei Zhao for their help. This study has been partly supported by National Natural Science Foundation of China (Grant No. 41472103) and Technology Major Project (2016ZX05004001).
作者单位
De-Bo Ma School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, Sichuan, China
PetroChina Research Institute of Petroleum Exploration and Development, Beijing 100083, China 
Guang-Hui Wu School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, Sichuan, China 
Nicola Scarselli Fault Dynamics Research Group, Department of Earth Sciences, Royal Holloway University of London, Egham TW20 0EX, UK 
Xin-Sheng Luo PetroChina Tarim Oilfield Company, Korla 841000, Xinjiang, China 
Jian-Fa Han PetroChina Tarim Oilfield Company, Korla 841000, Xinjiang, China 
Zhi-Yong Chen PetroChina Research Institute of Petroleum Exploration and Development, Beijing 100083, China 
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英文摘要:
      Understanding the scaling relation of damage zone width with displacement of faults is important for predicting subsurface faulting mechanisms and fluid flow processes. The understanding of this scaling relationship is influenced by the accuracy of the methods and types of data utilized to investigate faults. In this study, seismic reflection data are used to investigate the throw and damage zone width of five strike-slip faults affecting Ordovician carbonates of the Tarim intracraton basin, NW China. The results indicate that fault slips with a throw less than 200 m had formed wide damage zones up to 3000 m in width. Also, damage zone width is found to have both a positive correlation and a power-law relation with throw of two orders of magnitude, with a ratio of these values varying in a range of 2–15. The relationship between throw and damage zone width is not a simple power-law and changes its slope from small to larger size faults. The results indicate that throw scales well with damage zone width for the studied faults, and hence these can be used to predict fault geometries in the Tarim Basin. The study of the wide carbonate damage zones presented here provides new insights into scaling of large-size faults, which involve multiple faulting stages.
De-Bo Ma,Guang-Hui Wu,Nicola Scarselli,Xin-Sheng Luo,Jian-Fa Han,Zhi-Yong Chen,2019.Seismic damage zone and width–throw scaling along the strike-slip faults in the Ordovician carbonates in the Tarim Basin.Petroleum Science,16(4):752~762.
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