摘要：The characterization of hydraulic fractures is crucial for fracturing evaluation and strategy optimization. Low-frequency electromagnetic triaxial induction measurement is a promising candidate in hydraulic fracture characterization. However, it is difficult to accurately monitor fracture shape, orientation, and the multistage fracture network distribution. A novel method that combines triaxial induction measurement with sector-shaped coils axial rotation measurement (TIM-SCARM) is proposed to characterize hydraulic fractures. It is implemented by using the finite element method with transition boundary conditions (FEM-TBCs), which approximates the thin fracture as a surface to enhance the computational efficiency. The study focuses on quantitative analysis of conductivity, cross-sectional shape, half-length, and orientation of hydraulic fractures to assess their effects on specific configurations of the TIM-SCARM. Furthermore, the correlations between multicomponent signals and fracture characteristics are investigated. Numerical results indicate that the coaxial component signal in SCARM can distinguish the cross-sectional shape and orientation. The cross-polarized component signals provide important features of tilted fractures, and the 3-D signal obtained by instrument rotation could determine the spatial distribution of fracture networks. Therefore, measurements that integrate the multicomponent signals and axial information improve fracture geometry evaluation.

关键字：Hydraulic fracture; electromagnetic induction technique; multistage fracture network; sector-shaped coils axial rotation measurement

ISSN号：0196-2892

卷、期、页：卷: 60

发表日期：2022-01-01

影响因子：5.600000

期刊分区（SCI为中科院分区）：二区

收录情况：SCIE（科学引文索引网络版）

发表期刊名称：IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING

参与作者：Potter, David K.

通讯作者：翟颖,李洋

第一作者：刘得军

论文类型：期刊论文

论文概要：翟颖,刘得军,Potter, David K.,李洋，Characterization of Hydraulic Fractures With Triaxial Electromagnetic Induction and Sector Coil Rotation Measurement，IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING，2022，卷: 60

论文题目：Characterization of Hydraulic Fractures With Triaxial Electromagnetic Induction and Sector Coil Rotation Measurement