An Approach Towards a FEP-based Model for Risk Assessment for Hydraulic Fracturing Operations

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• 作者：D. Glä ; ser^a ; ^{dennis.glaeser@iws.uni-stuttgart.de} ; A. Dell&rsquo ; Oca^b ; A. Tatomir^c ; J. Bensabat^d ; H. Class^a ; A. Guadagnini^b ; R. Helmig^a ; C. McDermott^e ; M. Riva^b ; M. Sauter^c
• 关键词：hydraulic fracturing ; global sensitivity analysis ; generalized PCE ; Sobol indices
• 刊名：Energy Procedia
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：97
• 期：Complete
• 页码：387-394
• 全文大小：1035 K
• 卷排序：97

文摘

We consider an exemplary scenario drafted in the context of the recently started EU-project FracRisk. The setting belongs to six scenarios representing diverse subsurface processes on different scales. A numerical approach considering sources, pathways and targets quantifies the environmental impact associated with this setting. A Global Sensitivity Analysis of properly defined output quantities takes into account uncertain parameters and operational conditions within a FEP-based evaluation of risk and counteractive measures. At this early stage of the project, this showcase of the general modeling workflow addresses migration of frac-fluid through a naturally fractured reservoir (source) to an overlying formation (target).