Experimental investigation on the effect of interfacial properties of chemical flooding for enhanced heavy oil recovery
文献类型：期刊论文
| 作者 | Cao, Han1,2; Li, Yiqiang1,2; Gao, Wenbin3; Cao, Jinxin1,2; Sun, Bingyu4; Zhang, Jin5 |
| 刊名 | COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
 |
| 出版日期 | 2023-11-20 |
| 卷号 | 677页码:12 |
| 关键词 | Heavy oil Polymer flooding Surfactant flooding Pores scale Enhanced oil recovery |
| ISSN号 | 0927-7757 |
| DOI | 10.1016/j.colsurfa.2023.132335 |
| 英文摘要 | Chemical compound flooding has demonstrated its efficacy in enhancing light oil recovery through ultra-low interfacial tension (IFT). However, the optimization of chemical systems properties for displacing heavy oil has not been clarified. This research aims to address this problem by designing common polymer and three surfactant-polymer (SP) systems with varying IFT and interfacial viscoelasticity behaviors, and comparing their ability to recover heavy oil. The findings of core flooding tests indicate that the system with low IFT and high interfacial viscoelasticity simultaneously has a better displacement efficiency for heavy oil than other flood systems, which could enhance heavy oil recovery by 21.94%. Micro-model tests reveal the underlying mechanisms driving the enhanced macro-scale oil recovery. The emulsion formation and interface expansion facilitated by low IFT, as well as increased emulsion stability and reduced snap-off of oil droplets due to the presence of an elastic oil-water interfacial film. These phenomena is more capable of driving microscopic heterogeneous remaining oil and film remaining oil than other solution. The comparative experiment analysis shows that the difference in chemical flooding between heavy oil and light oil is caused by the discrepant distributions of surfactants at the oil-water interface. The light oil interface is a monolayer surfactant molecular film, the heavy components and surfactant moleculars exhibit both competitive and cooperative adsorption phenomena at the oil-water interface. The occurrence of viscosity reduction and increased emulsion stability are more influential factors in the process of heavy oil displacement than those of conventional ultra-low IFT systems used for light oil recovery. |
| 资助项目 | National Natural Science Foundation of China[52004305] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:001070596700001 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/39429]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Yiqiang |
| 作者单位 | 1.China Univ Petr, State Key Lab Petr Resources & Prospecting, Beijing 102249, Peoples R China 2.China Univ Petr, Coll Petr Engn, Beijing 102249, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 4.China Univ Petr East China, Sch Petr Engn, Qingdao 266580, Peoples R China 5.PetroChina, Dagang Oilfield Co, Res Inst Explorat & Dev, Tianjin 300280, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cao, Han,Li, Yiqiang,Gao, Wenbin,et al. Experimental investigation on the effect of interfacial properties of chemical flooding for enhanced heavy oil recovery[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2023,677:12. |
| APA | Cao, Han,Li, Yiqiang,Gao, Wenbin,Cao, Jinxin,Sun, Bingyu,&Zhang, Jin.(2023).Experimental investigation on the effect of interfacial properties of chemical flooding for enhanced heavy oil recovery.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,677,12. |
| MLA | Cao, Han,et al."Experimental investigation on the effect of interfacial properties of chemical flooding for enhanced heavy oil recovery".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 677(2023):12. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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