Next Article in Journal
FULE—Functionality, Usability, Look-and-Feel and Evaluation Novel User-Centered Product Design Methodology—Illustrated in the Case of an Autonomous Medical Device
Previous Article in Journal
Gastrocnemius Activation throughout the Competitive Season in Athletes of Different Experience Levels
Open AccessArticle

Microseismic Location Error Due to Eikonal Traveltime Calculation

1
Seismik s.r.o., Kubišova 1265/8, 18200 Praha 8, Czech Republic
2
Department of Geosciences, King Fahd University of Petroleum and Minerals, Dhahran 34464, Saudi Arabia
*
Author to whom correspondence should be addressed.
Appl. Sci. 2021, 11(3), 982; https://doi.org/10.3390/app11030982
Received: 28 December 2020 / Revised: 18 January 2021 / Accepted: 19 January 2021 / Published: 22 January 2021
The accuracy of computed traveltimes in a velocity model plays a crucial role in localization of microseismic events. The conventional approach usually utilizes robust fast sweeping or fast marching methods to solve the eikonal equation numerically with a finite-difference scheme. These methods introduce traveltime errors that strongly depend on the direction of wave propagation. Such error results in moveout changes of the computed traveltimes and introduces significant location bias. The issue can be addressed by using a finite-difference scheme to solve the factored eikonal equation. This equation yields significantly more accurate traveltimes and therefore reduces location error, though the traveltimes computed with the factored eikonal equation still contain small errors with systematic bias. Alternatively, the traveltimes can be computed using a physics-informed neural network solver, which yields more randomized traveltimes and resulting location errors. View Full-Text
Keywords: passive seismic; microseismic monitoring; eikonal passive seismic; microseismic monitoring; eikonal
Show Figures

Figure 1

MDPI and ACS Style

Alexandrov, D.; Waheed, U.b.; Eisner, L. Microseismic Location Error Due to Eikonal Traveltime Calculation. Appl. Sci. 2021, 11, 982. https://doi.org/10.3390/app11030982

AMA Style

Alexandrov D, Waheed Ub, Eisner L. Microseismic Location Error Due to Eikonal Traveltime Calculation. Applied Sciences. 2021; 11(3):982. https://doi.org/10.3390/app11030982

Chicago/Turabian Style

Alexandrov, Dmitry; Waheed, Umair b.; Eisner, Leo. 2021. "Microseismic Location Error Due to Eikonal Traveltime Calculation" Appl. Sci. 11, no. 3: 982. https://doi.org/10.3390/app11030982

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop