Simulation of Dynamic Stimulation of Wells by Pressure Pulsing

加拿大150万口水井和200,000口油气井中的大多数将受益于产量的提高。增产措施用于改善低效油藏中的流体流动。Wavefront Technology Solutions(WFT)创建了独特的刺激技术WaveAxe，该技术用于能源部门增加碳氢化合物的生产，并用于环境部门的补救。标准的刺激是缓慢而稳定的，而WaveAxe会产生动态压力脉冲，调动流体和岩石中的惯性力，导致气孔扩张和岩石破碎--从而实现卓越的渗透率和产量。然而，WaveAxe的成功应用需要仔细调整过程变量，以实现在流体和岩石中产生的复杂波的同步；否则，治疗可能会失败。 为了满足国内和国际客户的需求，WTS希望开发一种框架，以快速确定最优工艺参数，最大限度地提高处理效果。该项目分为四个关键目标：(1)开发WaveAxe模型并集成到水力压裂模拟器中；(2)无量纲分析；(3)参数研究；(4)设计图的开发。这项研究将更全面地了解油藏对动态刺激的复杂多物理反应，并能够针对更广泛的现场条件快速设计处理方法。这些结果对WTS以及有意在加拿大和国际上使用这项技术的公司的决策过程都很重要。 为了提高研究项目的创造性和创新性，考虑公平、多样性和包容性(EDI)是研究团队的核心原则。该项目将资助一名博士后研究员，他将接受计算力学和工业实践方面的培训。此外，她们还将得到工程女性和发光中心提供的指导计划的支持。

A majority of Canada's 1.5 million water wells4 and +200,000 producing oil and gas wells would benefit from in increase in production rate. Stimulation is used to improve fluid flow in under-performing reservoirs. Wavefront Technology Solutions (WFT) created the unique stimulation technology WaveAxe, which is used in the energy sector to increase production of hydrocarbons and in the environmental sector for remediation. Whereas standard stimulations are slow and steady, WaveAxe generates dynamic pressure pulses which mobilize inertia forces in both the fluid and in the rock causing pores to expand and the rock mass to fragment - resulting in superior permeability and production. However, successful application of WaveAxe requires careful tuning of process variables to achieve synchronization of the complex waves generated in both the fluid and the rock mass; otherwise, the treatment may fail. To meet the needs of its domestic and international clients, WTS, desires to develop a framework to quickly determine optimal process parameters that maximize treatment effectiveness. The project is divided into four key objectives: (1) Development WaveAxe model and integration into hydraulic fracture simulator, (2) dimensionless analysis, (3) parameter study, and (4) development of design charts. This research will provide a more complete understanding of the complex multiphysics of the reservoir response to dynamic stimulation and enable the rapid design of treatments for a wider range of field conditions. These results are important for WTS and for the decision-making process of companies interested in using this technology in Canada and internationally. To increase creativity and innovation in this research project, consideration of equity, diversity, and inclusion (EDI) are core principles for the research team. The project will fund one Post-doctoral fellow who will receive training in computational mechanics and industry practises. In addition, they will be supported by mentoring programs offered through Women in Engineering and the Glow Centre.