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Special Topics & Reviews in Porous Media: An International Journal
ESCI SJR: 0.277 SNIP: 0.52 CiteScore™: 1.3

ISSN Print: 2151-4798
ISSN Online: 2151-562X

Special Topics & Reviews in Porous Media: An International Journal

DOI: 10.1615/SpecialTopicsRevPorousMedia.2016016790
pages 357-363

EXPERIMENTAL STUDY ON THE PRESSURE DISTRIBUTION AND DYNAMIC PROPAGATION BEHAVIOR OF CO2 FOAM FLOW IN HETEROGENEOUS POROUS MEDIA

Dongxing Du
College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China; Qingdao Municipal Key Laboratory on Geological & Exploration Engineering Technology for Enhanced Shale Oil & Gas Recovery, Qingdao
Chengcheng Wang
College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China; Geo-Energy Research Institute, Qingdao University of Science and Technology, Qingdao 266109, China
Na Zhang
College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China; Qingdao Municipal Key Laboratory on Geological & Exploration Engineering Technology for Enhanced Shale Oil & Gas Recovery, Qingdao
Dexi Wang
College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China; Qingdao Municipal Key Laboratory on Geological & Exploration Engineering Technology for Enhanced Shale Oil & Gas Recovery, Qingdao
Shangji Zheng
College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China; Geo-Energy Research Institute, Qingdao University of Science and Technology, Qingdao 266109, China
Rui Sun
College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China; Geo-Energy Research Institute, Qingdao University of Science and Technology, Qingdao 266109, China
Yingge Li
College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266061, China; College of Automation and Electronic Engineering, Qingdao University of Science and Technology, Qingdao 266042, China

ABSTRACT

Carbon dioxide foam technology has great application prospects for enhancing oil recovery and CO2 underground storage. In this study, the pressure distribution was measured in heterogeneous porous media packed with two- and three-layer quartz sand of different particle sizes by setting pressure transducers on different layers. Computed tomography (CT) was also carried out to visualize the dynamic propagation behavior of CO2 foam flow in heterogeneous porous media. A pressure difference between parallel layers, which is much smaller than the pressure drop along the flow direction, was observed from the measurements. Corresponding CT images revealed the injected foam would primarily flow through the layer with the largest particle size, break through that layer, and then penetrate to the neighboring layer packed with smaller particles due to the pressure difference across the layer. The foam propagation process continued until it swept all the layers in the heterogeneous porous media. The experimental results properly validated the modeling and numerical studies, indicating good performance of CO2 foam on smoothing heterogeneities for its use in essential field applications such as in enhanced oil recovery and CO2 geological storage.


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