Hydraulic fracturing operation for oil and gas production and associated earthquake activities across the USA
Hydraulic fracturing operation for oil and gas production and associated earthquake activities across the USA
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DOI：
10.1007/s12665-020-09008-0
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发表时间：
2020-05
影响因子：
2.8
通讯作者：
V. Villa;Ramesh P. Singh
中科院分区：
文献类型：
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作者：
V. Villa;Ramesh P. Singh
众所周知，水力压裂（水力压裂）作业与石油/天然气生产的水平钻井相关，会因处理井中的流体注入而引发地震。近年来，大量研究表明诱发地震活动与高压注入废水之间存在密切关系，特别是在德克萨斯州、堪萨斯州和俄克拉荷马州。对美国 17 个主要水力压裂地点进行了详细分析，以研究水平井和相应注入废水对地震活动的影响。从 USGS 地震目录获得的 1998 年至 2018 年期间的地震数据显示，水力压裂地点 150 公里半径范围内的地震频率有所增加，尤其是在美国中南部。地震的刺激取决于水平井和处置注入井的注入水量，以及钻井现场附近的地质、水文和地球物理环境。在德克萨斯州（相关性R2= 0.726）和俄克拉荷马州（相关性R2= 0.636），观测到的地震活动随着水力压裂位置的水平井数量的增加而增加。
Hydraulic fracturing (fracking) operations, associated with horizontal drilling for oil/gas production, are known to induce earthquakes from fluid injection in disposal wells. In recent years, numerous studies have shown a close relationship between induced seismic activities and the high-pressure injection of wastewater, especially in Texas, Kansas, and Oklahoma. Detailed analysis of 17 major fracking locations across the USA has been carried out to study the impact of horizontal wells and the corresponding injected wastewater on earthquake activities. Earthquake data for the period 1998–2018 obtained from the USGS earthquake catalog shows an increase in frequency of earthquakes within a radius of 150 km at fracking locations, prominently in south-central USA. The stimulation of earthquakes depends on the amount of injected water in both horizontal and disposal injected wells, and the geology, hydrological, and geophysical settings nearby the drilling site. The observed seismicity increases with the number of horizontal wells in Texas (correlationR2= 0.726) and Oklahoma (correlationR2= 0.636) at the fracking locations.