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Microseismic Event Location Using Migration-Based Stacking With Effective Parameters’ Optimization

delete2025-01-01
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PRE
AI
J
Jincheng Xu
T
Tian Qiu
Z
Zhiyi Zeng
F
Feng Zhu
P
Peng Han
W
Wei Zhang
DOI:10.1109/TGRS.2025.3591126delete
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摘要

摘要

En 中文
微地震监测已成为开发致密储层的关键技术,特别是涉及水力压裂的储层,如页岩气和煤层气。用于地表微地震事件的常规基于偏移叠加定位方法高度依赖速度模型的准确性。然而,获取精确的3-D速度模型往往具有挑战性,促使常用基于测井数据推导的1-D分层速度模型或通过射孔炮标定的恒定速度模型。为提升微地震事件定位精度和实际应用性,我们引入了一种改进的基于偏移叠加定位方法,融入了两个与深度相关的有效参数:叠加速度和非均匀性因子。这两个有效参数被用于描述波射线路径通过非均匀介质,可通过相似性扫描技术估计。此外,为解决速度模型误差和地形变化引起的剩余静校正问题,我们引入了微地震事件的动校正叠加道集进行剩余静校正。这一额外步骤进一步提高了微地震事件定位的精度。我们提出方法的另一优势在于其能够在基于偏移的定位过程中直接计算理论走时,无需预先计算和存储走时表。通过合成模型数据和实际数据的应用实例,验证了该方法的有效性和实用性。
Keyword:
Effective parameters’ estimation
microseismic monitoring
migration-based location
residual static corrections
velocity analysis

期刊

IEEE Transactions on Geoscience and Remote Sensing 封面图
IEEE Transactions on Geoscience and Remote Sensing
IF:
8.6
论文数:
2.1W
被引数:
10.7W

机构

S
Southern University of Science and Technology
学者数:
5.2K
论文数: 2.1K
被引数: 34
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