A time-field search method for AE source location with a regional velocity model

Acta Geophysica

article

Wu, Shunchuan¹  Gan, Yixiong¹  Hampton, Jesse³  Gutierrez, Marte⁴  Lu, Mingjing⁵  Huang, Xiaoqing¹ 

[1] Key Laboratory of Ministry of Education for Efficient Mining and Safety of Metal Mine, University of Science and Technology;Faculty of Land Resource Engineering, Kunming University of Science and Technology;University of Wisconsin-Madison;Colorado School of Mines;School of Petroleum Engineering, China University of Petroleum (East China)

关键词: AE source location;    Time-field method;    Database;    Hydraulic fracture;    True-triaxial experiment;   

DOI  :  10.1007/s11600-020-00469-2

学科分类：地球科学(综合)

来源: Polska Akademia Nauk * Instytut Geofizyki

【 摘 要 】

A time-field search method was proposed for AE event source location, combining the grid search method and the database technique. Theoretical process was given, and laboratory hydraulic fracture stimulation experiments under true-triaxial confining stresses were performed to prove the practicability of the method. A regional velocity model with variable wave velocities and directionality was required to fit observations. The location results showed that time-field location method obtains the global optimal source location solution with a relatively high efficiency and accuracy.

【 授权许可】

Unknown