"Collaborative Research"ITR-(ASE+EVS)-dmv+sim):Data Driven Simulation of the Subsurface: Optimization and Uncertainty Estimation

“协作研究”ITR-(ASE EVS)-dmv sim)：数据驱动的地下模拟：优化和不确定性估计

• 批准号: 0427005
• 负责人: Mary Wheeler
• 金额: $ 69.4万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-10-01 至 2008-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0427005&HistoricalAwards=false
• 关键词: Collaborative; Research; ITR; ASE+EVS; dmv+sim

Intellectual Merit. Remote sensing is employed in science and engineering problems to infer material properties when these properties can not be directly sampled. To better understand and manage our environment for safety and economic reasons, much progress has been made in imaging the subsurface and estimating physical properties based on remote sensing data. Repeated observations over targets for environmental remediation and reservoir production has become a recognized diagnostic tool for assisting management decisions. In addition, improved optimization techniques capable of responding to large, multi-resolution, disparate, dynamic datasets in a fault tolerant and adaptive fashion are a fundamental requirement for effectively estimating and minimizing the uncertainty in any data driven application. The integrated and e_ective treatment of these issues motivates the present project. The assembled research team proposes to advance the mathematical, engineering and computational foundations necessary to enhance our understanding and extend the predictive capabilities of the physical processes that govern the subsurface phenomena at multiple temporal and spatial scales. Target applications include management of aquifers for water resources, optimizing oil and gas production, and monitoring environmental risks e.g., at waste containment sites or arising from natural hazards.The intellectual merits of the project include: (1) development of the next generation of accurate, multi-scale, coupled chemical, uid, geomechanical, and geophysical simulators for modeling instrumented subsurface environments; (2) large scale optimization techniques (based on a hybridization of global and local approaches) to drive reliable decision-making and a dynamic symbiotic feedback between computation and data; (3) deployment of an autonomic Grid middleware for providing the adequate processing substrate and data management services for (1) and (2). The realization of the above contributions will result in the Data Driven Subsurface Simulation Framework (DDSSF).

智力优点。当无法直接采样材料特性时，遥感用于解决科学和工程问题以推断材料特性。为了出于安全和经济原因更好地了解和管理我们的环境，在地下成像和基于遥感数据估计物理特性方面已经取得了很大进展。 对环境修复和水库生产目标的反复观察已成为协助管理决策的公认诊断工具。此外，能够以容错和自适应方式响应大型、多分辨率、不同的动态数据集的改进优化技术是有效估计和最小化任何数据驱动应用程序中的不确定性的基本要求。对这些问题的综合有效的处理推动了本项目的开展。组成的研究团队提议推进必要的数学、工程和计算基础，以增强我们的理解并扩展在多个时间和空间尺度上控制地下现象的物理过程的预测能力。目标应用包括水资源含水层管理、优化石油和天然气生产以及监测环境风险，例如废物控制场或自然灾害引起的风险。该项目的智力优势包括：（1）开发下一代精确的、多尺度、耦合化学、流体、地质力学和地球物理模拟器，用于对仪表化地下环境进行建模； （2）大规模优化技术（基于全局和局部方法的混合）来驱动可靠的决策以及计算和数据之间的动态共生反馈； (3)部署自主网格中间件，为(1)和(2)提供足够的处理基础和数据管理服务。上述贡献的实现将产生数据驱动的地下模拟框架（DDSSF）。