Monitoring seismicity and crustal structure of the Canoe Reach geothermal field

独木舟REACH地热田的开发将为发电提供理想的资源，这些电力可以输送到周围地区和其他地区的社区。为了实现这一目标，这是他们独木舟能源项目的一部分，北方地质电力公司正在进行一系列研究，以更好地了解地热田的结构及其与邻近断层的关系。对于这个项目，北极星计划在独木舟附近钻探探井，以更好地评估温泉地区的热条件和浅层地壳结构。利用NSERC Engage资金，申请者将与Borealis GeopPower合作，进行一项新颖的地震调查，以确定在地热田的初始开发过程中，当地断层对钻井和流体注入的响应方式。该项目为期六个月，从钻探前到注水后，这将突出说明在地热开发的初始阶段该地区是如何被修改的。使用将作为该项目的一部分获得的新的地震数据集，我们将监测独木舟河段地热场，以绘制其地震图，并描述其断层。我们的观测将以以前无法获得的细节揭示该地区内地震活动和断层的分布细节。确定地震活动或断层的变化将为监测它们的活动如何改变该地区提供数据。这项活动补助金将为研究生提供支持，以：(1)检测当地的地震活动，(2)确定与这些地震有关的断层的方向，(3)检查地震波的到达并评估其传播是否似乎受到各向异性地震速度的影响，以及(4)测量这些观测是否显示出时间变化，以及这些变化与地热开发过程中发生的活动的时间安排有何关系。综合这些结果将为Borealis提供对区域地震活动和断层的洞察，从而使独木舟到达能源项目能够得到最佳开发。

The development of the Canoe Reach geothermal field will provide an ideal resource for generating power thatcan be delivered to communities in the surrounding area and beyond. To achieve this goal, which is part oftheir Canoe Reach Energy project, Borealis GeoPower is conducting a series of studies to better understand thestructure of the geothermal field and its relation to the neighboring faults. For this project Borealis plans to drillan exploration well near Canoe Reach to better assess the thermal conditions and the structure of the shallowcrust in the area of the hot springs. Utilizing NSERC Engage funding, the applicant will collaborate withBorealis GeoPower by conducting a novel seismic investigation to identify the manner in which local faultsrespond to drilling and fluid injection during the initial development of a geothermal field. The six-monthduration of this project is timed to span from prior to drilling to post-injection, which will highlight how theregion has been modified during the initial stages of geothermal development. Using a new seismic dataset thatwill be acquired as part of this project, we will monitor the Canoe Reach geothermal field to map its seismicityand characterize its faults. Our observations will reveal details about the distribution of seismicity and faultswithin the region at previously unattainable detail. Identifying changes in seismicity or faults will provide datato Borealis to monitoring how their activities modify the region.This Engage grant will provide support for graduate students to: (1) detect local seismicity, (2) characterize theorientation of faulting associated with these earthquakes, (3) examine arrivals of seismic waves and assess iftheir propagation appears to have been affected by anisotropic seismic velocities, and (4) measure whetherthese observations exhibit temporal variations and how those relate to the timing of activities taking placeduring geothermal development. Integrating these results will provide Borealis with insights into the regionalseismicity and faults so that the Canoe Reach Energy project can be optimally developed.