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首页> 外文会议>1998 Joint Conference on the Environment, 1998, Mar 31-Apr 1, 1998, Albuquerque, NM >Gas-Driven Hydrofracture Scenarios at WIPP
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Gas-Driven Hydrofracture Scenarios at WIPP

机译：WIPP的天然气驱动水力压裂方案

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Modeling and experiments show that gas will be generated and build up over time within the Waste Isolation Pilot Plant (WIPP). This gas will be caused by the anoxic corrosion of iron and by biodegradation of organic materials. A potential exists for several tens of million cubic meters (at atmospheric pressure and 30℃) of gas to be generated. A review of the WIPP Compliance Certification Application (CCA) calculations and associated literature has revealed inadequate consideration of the behavior of possible gas-driven hydrofracture scenarios. This poster presents the results of both laboratory modeling and mathematical analysis of gas-driven hydrofracture at WIPP. The results show that unless special care is taken to preclude the generation of gas or to properly vent gas, a gas-driven hydrofracture is likely. Our physical modeling reveals the possible development of both horizontally- and vertically oriented circular hydrofractures, as shown in Figs. 1 and 2, even within a horizontally stratified solid. The behavior of these hydrofractures is considered in this poster. It is shown that should a vertical hydrofracture develop, it would be incapable of containing the gas volumes predicted. A novel method is proposed for controlling the build-up of waste gas within the repository so that the hypothesized hydrofracture events will be avoided.
机译：建模和实验表明，随着时间的推移，废物隔离中试工厂（WIPP）会产生并积累气体。该气体将由铁的缺氧腐蚀和有机材料的生物降解引起。在大气压和30℃下，可能会产生数千万立方米的气体。对WIPP符合性认证申请（CCA）计算和相关文献的回顾表明，对可能的天然气驱动水力压裂情景的行为没有给予足够的考虑。该海报展示了WIPP的天然气驱动的水力压裂的实验室建模和数学分析的结果。结果表明，除非特别注意防止产生气体或适当排出气体，否则可能会发生由气体驱动的水力压裂。我们的物理模型揭示了水平和垂直方向的圆形水力压裂的可能发展，如图1和2所示。 1和2，即使在水平分层的实体中也是如此。在海报中考虑了这些水力压裂的行为。结果表明，如果发生垂直水力压裂，将无法容纳预测的天然气量。提出了一种新颖的方法来控制储存库中废气的积累，从而避免了假设的水力压裂事件。

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