Investigation of sand production and hydraulic fracturing in petroleum sandstone reservoirs

石油砂岩油藏出砂及水力压裂研究

• 批准号: 387606-2009
• 负责人: Nouri, Alireza
• 金额: $ 10.71万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=529096
• 关键词: Investigation; sand; production; hydraulic; fracturing

This proposal relates to petroleum wellbore phenomena including rock degradation, sand production, and hydraulic fracturing. The proposed research takes a comprehensive approach in understanding and quantifying these phenomena in conventional and heavy oil reservoirs by fundamental and applied research through physical and mathematical modeling. Sand production in the petroleum industry is defined as the production of solid particles together with reservoir fluids. Estimates indicate 70% of the world oil reserves are in reservoir sandstones that are prone to producing sand at some time during their production life. Sand influx into the wellbore can increase the well productivity/injectivity. It also has negative aspects and, if massive, can lead to wellbore collapse. Therefore, reliable prediction of sanding, which is a focus of this proposal, is vital to optimizing wellbore operational conditions and increasing field profitability. Development of reliable sanding models is only possible if various influential phenomena are understood and captured through improved theories and techniques. This aspect is another focus of the proposed research and includes the formulation and implementation of a constitutive law that can capture the rock degradation process. The model will be enriched to avoid the effects of artificial conditions on the numerical results.

该提议涉及石油井筒现象，包括岩石退化、出砂和水力压裂。拟议的研究采取全面的方法，通过物理和数学建模的基础和应用研究，了解和量化这些现象在常规和稠油油藏。 石油工业中的出砂被定义为固体颗粒与储层流体一起产生。据估计，世界石油储量的70%是在储层砂岩中，这些砂岩在其生产寿命期间的某个时候容易出砂。砂流入井筒可以增加井的生产率/注入能力。它也有消极的方面，如果是大规模的，可能导致井筒坍塌。因此，可靠的出砂预测，这是本建议的重点，是至关重要的优化井筒操作条件，提高油田的盈利能力。只有通过改进的理论和技术来理解和捕捉各种有影响的现象，才有可能开发可靠的出砂模型。这方面是拟议的研究的另一个重点，包括制定和实施的本构律，可以捕捉岩石退化过程。为避免人为条件对数值结果的影响，对模型进行了充实。