Modeling of Shales in Salt-Hydrocarbon Systems

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• 作者：Maria A. Nikolinakou ; Peter B. Flemings…
• 关键词：Shales ; Forward modeling ; Salt diapir ; Poro ; elastoplasticity ; Wellbore stability
• 刊名：Rock Mechanics and Rock Engineering
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：49
• 期：2
• 页码：699-705
• 全文大小：1,406 KB
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• 作者单位：Maria A. Nikolinakou (1)
  Peter B. Flemings (2)
  Michael R. Hudec (1)
  
  1. Bureau of Economic Geology, The University of Texas at Austin, 10100 Burnet Road, Building PRC-130, Austin, TX, 78758, USA
  2. Jackson School of Geosciences, The University of Texas at Austin, 10100 Burnet Road, Building PRC-130, Austin, TX, 78758, USA
  
• 刊物类别：Earth and Environmental Science
• 刊物主题：Earth sciences
  Geophysics and Geodesy
  Civil Engineering
  
• 出版者：Springer Wien
• ISSN：1434-453X

文摘

We model the stress–strain response of shale wall rocks to large deformations associated with the emplacement of salt bodies. We further identify the implications of these stress changes for hydrocarbon exploration. We model the mudrocks as porous elastoplastic materials. We employ both static and evolutionary approach for the modeling of salt systems and show that while the static one can model actual geologic geometries, only the evolutionary approach can provide a detailed description of the stress changes associated with the emplacement of salt. Hence, the evolutionary approach can register the overall stress history of the shale wall rocks, which is essential for predicting the present-day state of stress, porosity, and pore pressure. More generally, the evolutionary approach can provide useful insights for understanding Earth processes related to salt-hydrocarbon systems. Keywords Shales Forward modeling Salt diapir Poro-elastoplasticity Wellbore stability