Fundamental studies on pore structure characterizatiion and multiphase flow in porous media with applications to oil recovery

多孔介质孔隙结构表征和多相流基础研究及其在采油中的应用

• 批准号: 4200-2010
• 负责人: Chatzis, Ioannis
• 金额: $ 2.19万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=509949
• 关键词: Fundamental; studies; pore; structure; characterizatiion

The focus of this research is to perform fundamental studies on pore structure characterization and multiphase flow in porous materials with applications to oil recovery. In Western Canada there are is lot of oil in reservoirs containing heavy oil and bitumen. In water resources, we have problems when an oil spill enters into water aquifer strata sub-surface, causing water pollution. The main objectives of this research are: 1) to develop new thermal oil recovery methods for the recovery of heavy oil and bitumen using horizontal injection and production wells that will more cost effective and will reduce the air and water pollution. It is proposed to use a "warm" vapour extraction scheme with co-injection of hydrocarbon solvents along with steam for improved oil recovery efficiency and rate of production; 2) to develop improved understanding of the pore-scale interfacial phenomena of the solvent-aided steam assisted gravity drainage (SA-SAGD) process. Developing a better understanding of interfacial phenomena at the pore-scale for different process conditions, the role played by the presence of heterogeneities in oil reservoirs with vuggy porosity and fractures will be quantified and better mathematical models will be made for predicting process performance; and 3) to advance the state of the art in a new technology developed in our laboratory that uses the injection of supersaturated water with CO2 to clean-up in-situ the oil spills in contaminated fresh-water aquifers and soils. Such oil spills usually result from leaky storage tanks on land (e.g., gasoline tanks) or accidental spills during transportation of hydrocarbons. The financial support of this research by NSERC will result in the training of 3 PhD degree and 3 or more Master's degree students. There is great potential to develop new and environmentally friendly technologies here in Canada with these research funds for proposed research. This will help create new jobs, better ways to recover the heavy oil and to reduce water pollution in contaminated sites and many socio-economic benefits to all Canadians.

这项研究的重点是对孔结构表征和多孔材料中的多相流进行基础研究，并应用于石油回收。在加拿大西部，含有重油和沥青的水库中有很多石油。在水资源中，当漏油进入水含水层地层地面时，我们会遇到问题，从而导致水污染。这项研究的主要目标是：1）使用水平注入和生产井开发新的热油回收方法，以恢复重油和沥青，这些井将更具成本效益，并将减少空气和水污染。建议使用“温暖”的蒸气提取方案，并共同注入碳氢化合物溶剂以及蒸汽，以提高油回收率和生产率； 2）为了提高对溶剂辅助蒸汽辅助重力引流（SA-SAGD）过程的孔隙尺度界面现象的了解。在不同的过程条件下，在孔隙尺度上更好地理解界面现象，将量化具有无效孔隙率和断裂的石油储层中的异质性作用，并将量化更好的数学模型来预测过程性能； 3）在我们的实验室开发的新技术中推进了最新技术，该技术使用二氧化碳的过饱和水注入，以清理现场，以污染的淡水含水层和土壤中的漏油。这种漏油通常是由于碳氢化合物运输过程中陆地上（例如汽油罐）或意外溢出物泄漏的储罐而引起的。 NSERC对这项研究的财政支持将导致培训3个博士学位和3个或更多硕士学位的学生。通过这些研究资金进行拟议的研究，在加拿大有很大的潜力可以在加拿大开发新的和环保的技术。 这将有助于创造新的就业机会，更好的方法来恢复重油，并减少受污染的地点的水污染以及对所有加拿大人的许多社会经济利益。