Petroleum Science >2016,??Issue 4:??712-724 DOI: https://doi.org/10.1007/s12182-016-0121-6
Rheology of rock salt for salt tectonics modeling Open?Access
文章信息
作者：Shi-Yuan Li and Janos L. Urai
作者單位：
School of Petroleum Engineering, China University of Petroleum, Beijing 102249, China;Endogene Dynamik, Faculty of Geo-Resources and Materials Technology, RWTH Aachen University, Lochnerstrasse 4-20, 52056 Aachen, Germany
投稿時(shí)間：2016-04-14
引用方式：Li, SY. & Urai, J.L. Pet. Sci. (2016) 13: 712. https://doi.org/10.1007/s12182-016-0121-6
文章摘要
Numerical modeling of salt tectonics is a rapidly evolving field; however, the constitutive equations to model long-term rock salt rheology in nature still remain controversial. Firstly, we built a database about the strain rate versus the differential stress through collecting the data from salt creep experiments at a range of temperatures (20–200 ℃) in laboratories. The aim is to collect data about salt deformation in nature, and the flow properties can be extracted from the data in laboratory experiments. Moreover, as an important preparation for salt tectonics modeling, a numerical model based on creep experiments of rock salt was developed in order to verify the specific model using the Abaqus package. Finally, under the condition of low differential stresses, the deformation mechanism would be extrapolated and discussed according to microstructure research. Since the studies of salt deformation in nature are the reliable extrapolation of laboratory data, we simplified the rock salt rheology to dislocation creep corresponding to power law creep (n = 5) with the appropriate material parameters in the salt tectonic modeling.
關(guān)鍵詞
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Rock salt rheology · Power law creep · Dislocation creep Modeling