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首页> 外文期刊>Bulletin of the Seismological Society of America >Monte Carlo Method for Probabilistic Hazard Assessment of Induced Seismicity due to Conventional Natural Gas Production
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Monte Carlo Method for Probabilistic Hazard Assessment of Induced Seismicity due to Conventional Natural Gas Production

机译:蒙特卡罗方法对常规天然气生产引起的地震诱发概率进行危险性评估

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摘要

A Monte Carlo approach to probabilistic seismic-hazard analysis is developed for a case of induced seismicity associated with a compacting gas reservoir. The geomechanical foundation for the method is the work of Kostrov (1974) and McGarr (1976) linking total strain to summed seismic moment in an earthquake catalog. Our Monte Carlo method simulates future seismic hazard consistent with historical seismic and compaction datasets by sampling probability distributions for total seismic moment, event locations and magnitudes, and resulting ground motions. Ground motions are aggregated over an ensemble of simulated catalogs to give a probabilistic representation of the ground-motion hazard. This approach is particularly well suited to the specific nature of the time-dependent induced seismicity considered.
机译:针对与致密气藏相关的诱发地震的情况,开发了一种用于概率地震危险分析的蒙特卡洛方法。该方法的地质力学基础是Kostrov(1974)和McGarr(1976)的工作,该工作将总应变与地震目录中的总地震矩联系起来。我们的蒙特卡洛方法通过采样总地震矩,事件位置和震级以及产生的地震动的概率分布来模拟与历史地震和压实数据集一致的未来地震危险。地面运动汇总在一组模拟目录中,以概率形式表示地面运动的危害。这种方法特别适合于所考虑的随时间变化的诱发地震活动的特定性质。

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