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Experiences and learnings from induced seismicity regulation in Alberta

机译：艾伯塔省诱导地震性监管的经验与学习

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摘要

We have examined the experiences and learnings acquired through the implementation of the Alberta Energy Regulator's (AER) subsurface order no. 2 (sub or no. 2) traffic light protocol (TLP). On 22 January 2015, a 4.4 M-L seismic event occurred near a hydraulic fracturing operation in west-central Alberta and was felt by residents of the town of Fox Creek. On 19 February 2015, the AER issued sub or no. 2 to help manage induced seismicity, as related to hydraulic fracturing of the Duvernay zone in a prescribed area around Fox Creek. Sub or no. 2 requires operators affected by the order to conduct a seismic hazard assessment; prepare a monitoring, mitigation, and response plan; conduct seismic monitoring; and adhere to a TLP. Since sub or no. 2 was issued, two "red light" events (i.e., M-L = 4.0) have occurred in the area. Review and analysis of data and information collected under sub or no. 2 facilitate an improved understanding of the key geologic and operational controls on induced seismicity and allow for an assessment of the efficacy of industry practices and regulatory requirements. We still support the use of local magnitude M-L for our TLP based on the purpose and outcomes provided by sub or no. 2. Conversations with operators have suggested that Sh(max) orientation should inform the wells' trajectory with respect to critically stressed faults. The requirement of a response plan was part of the learning process developed under sub or no. 2. Through this exercise, the AER has developed a better understanding of the goals of the response plans, which were better defined through conversations with operators. Sub or no. 2 is consistent with the current state of the evolving science of induced seismicity and has the capacity to change as new information is obtained.
机译：我们已经审查了通过实施Alberta能源调节器（AER）地下订单的经验和学习。 2（SUB或NO.2）交通光协议（TLP）。 2015年1月22日，在艾伯塔省西部的液压压裂操作附近发生了4.4 M-L地震事件，被福克斯溪镇的居民感到宾至如归。 2015年2月19日，苏已发行次级或缺款。 2为了帮助管理诱导的地震性，与福克斯溪周围的规定区域中的Duvernay区域的水力压裂有关。子或否。 2要求经营者受到秩序进行地震危害评估的影响;准备监测，缓解和响应计划;进行地震监测;并坚持TLP。自亚或否。 2已发出，该地区已发出两个“红灯”事件（即，M-L＆GT; = 4.0）。审查和分析亚或否收集的数据和信息。图2促进了改善对诱导地震性的关键地质和运营控制的理解，并允许评估行业实践和监管要求的功效。我们仍然基于子或否提供的目的和结果支持我们的TLP使用本地幅度M-L。 2.与运营商的对话表明，SH（最大）方向应告知井的轨迹是否有关批判性压力的故障。响应计划的要求是根据子或否制定学习过程的一部分。通过这项练习，该航站会已经更好地了解响应计划的目标，通过与运营商的对话更好地定义。子或否。图2与所诱导地震性的发展科学的当前状态一致，并且在获得新信息的情况下具有改变的能力。

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