摘要：Hydraulic fracturing-induced earthquakes are typically triggered via a hydraulic connection between stimulated wells and pre-existing faults. Despite this, relatively little modeling has focused on fluid migration along fractures and faults in shale reservoirs. The experimental measurements and logging data were collected first to create a high-resolution 3D petrophysical and geomechanical model of a Duvernay reservoir. To simulate the real-time growth of complex hydraulic-natural fracture networks, an unconventional fracture model (UFM) is constructed that considers fluid flow, interactions between hydraulic and natural fractures, reservoir petrophysics, and geomechanics. Coupled poroelastic modeling quantifies the well-fault hydraulic connection in terms of spatiotemporal stress and pressure changes, assessing the fault stability during hydraulic fracturing. The UFM model is applied to three field case studies, and the findings are evaluated against those of induced earthquake clusters. The non-uniform intricate fracture networks are discovered to provide fluid diffusion pathways for hydraulic fracturing-induced earthquakes. To reduce possible seismic risks, fault stability must be assessed prior to hydraulic fracturing in unconventional reservoirs. ? 2023 Elsevier Ltd

ISSN号：0360-5442

卷、期、页：卷282

发表日期：2023-11-01

影响因子：0.000000

期刊分区（SCI为中科院分区）：一区

收录情况：EI（工程索引）

发表期刊名称：Energy

参与作者：Schultz, Ryan,陈胜男,张兆臣,王海,王牧明,顾斐

通讯作者：宋宜磊

第一作者：惠钢,CHEN ZHANGXING,宋兆杰

论文类型：期刊论文

论文概要：惠钢,CHEN ZHANGXING,Schultz, Ryan,陈胜男,宋兆杰,张兆臣,宋宜磊,王海,王牧明,顾斐，Intricate unconventional fracture networks provide fluid diffusion pathways to reactivate pre-existing faults in unconventional reservoirs，Energy，2023，卷282

论文题目：Intricate unconventional fracture networks provide fluid diffusion pathways to reactivate pre-existing faults in unconventional reservoirs