3D physical analog modeling of salt movements under compressive tectonic setting
Xie Huiwen1, Lei Yongliang2,3, Neng Yuan1, Li Yong1, Zhang Chaojun2,3, Lei Ganglin1, Xu Zhenping1, Wu Chao1
1. Exploration and Development Research Institute,Tarim Oilfield Company,PetroChina,Kuler,Xinjiang 841000;
2. Key Laboratory of Basin Structure and Petroleum Accumulation,Research Institute of Petroleum Exploration and Development,PetroChina,Beijing 100083;
3. State Key Laboratory of Enhanced Oil Recovery,Beijing 100083
Salt movements have been paid much popular attention in salt tectonics.A scaled physical analog model and its 3D reconstruction were used to investigate driving forces from either tectonic displacement loading or differential sediment loading in this paper.This study suggests that significant salt flow happens under tectonic compression.At a high compressive tectonic strain rate(about 10-13 s-1),salt movements are primarily driven by tectonic displacement loading,followed by differential sediment loading.