摘要：The recent remarkable increase in induced seismicity in Western Canada has been largely attributed to hydraulic fracturing in unconventional reservoirs. The nucleation of large magnitude events has been demonstrated to be closely linked to site-specific geological and operational factors. A mitigation strategy of fracturing-induced seismicity concerning both factors has not been well investigated. In this paper, a comprehensive investigation of risk mitigations from induced seismicity is conducted based on the formation overpressure, distance to Precambrian basement, proximity to faults, fracturing job size and safe hydraulic fracture-fault distance. It is found that the middle-south region near Crooked Lake is an optimal region for fracturing operations with low formation pressure, a great distance to the basement and relatively fewer pre-existing faults. A field case study suggests that fracturing operations of three new horizontal wells are successful with low magnitude induced events and with high production performance, demonstrating the applicability of a comprehensive approach of seismicity risk mitigations. Such an approach can be applied to other field cases to mitigate the potential fracturing-induced seismicity in unconventional reservoirs.

ISSN号：2045-2322

卷、期、页：卷: 12期: 1

发表日期：2022-07-22

影响因子：4.379500

期刊分区（SCI为中科院分区）：三区

收录情况：SCIE（科学引文索引网络版）

发表期刊名称：SCIENTIFIC REPORTS

参与作者：汪萍,顾斐,孔祥文,张文起

第一作者：惠钢,陈掌星

论文类型：期刊论文

论文概要：惠钢,陈掌星,汪萍,顾斐,孔祥文,张文起，Mitigating risks from hydraulic fracturing-induced seismicity in unconventional reservoirs: case study，SCIENTIFIC REPORTS，2022，卷: 12期: 1

论文题目：Mitigating risks from hydraulic fracturing-induced seismicity in unconventional reservoirs: case study