Modern Approaches to Numerical Modeling of Microseismic Events
Abstract
The study considers the actual issue of improving the accuracy of mapping in fracturing using microseismic monitoring. The given question is first of all in connection with increasing volume of hydraulic fracturing at the development of modern hydrocarbon deposits. In this regard, it is necessary to develop methodological recommendations for conducting fieldwork in order to obtain the most informative results.
The authors of the paper used full-wave three-dimensional modeling of seismic emission from a point source simulating energy radiation in the course of fracture development. Several surface and borehole monitoring systems have been modeled to register emerging elastic waves, the most common now in practice.
Simulation of a single source made it possible to obtain typical seismograms for different observation systems. Analysis of the results under different reception conditions makes it possible to examine the specific wave fields and analyze the main advantages and disadvantages of different observation systems.
The model results show that the maximum informativeness is achieved by a surface patch system that provides a wide observation aperture and a higher signal level against background noise.
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V Aki, K., P.G. Richards, “Quantitative seismology”, 2002, 700 p.
Bao H. et al. Large-scale simulation of elastic wave propagation in heterogeneous media on parallel computers //Computer methods in applied mechanics and engineering. – 1998. – Т. 152. – №. 1-2. – С. 85-102.
Behura J., F. Forghani, F. Bazargani, “Improving microseismic imaging: role of acquisition, velocity model, and imaging condition”, SEG Technical Program Expanded Abstracts 2013, 5258 p. https://doi.org/10.1190/segam2013-1073.1
Belachew M., C. Ebinger, D. Cote, “Source mechanism of dike-induced earthquakes in the Dabbahu-Manda Hararo rift segment in Afar, Ethiopia: implications of faulting above dikes”, Geophysical Journal International, 192, 2013, 907-917 p.
Brix K., Canuto C., Dahmen W. Legendre-Gauss-Lobatto grids and associated nested dyadic grids //arXiv preprint arXiv:1311.0028. – 2013.
Cipolla, Wright, “Diagnostic techniques to understand hydraulic fracturing: what? why? how?”, Society of Petroleum Engineers, 2002. doi:10.2118/59735-MS 2002
Dahm T., F. Kruger, “Moment tensor inversion and moment tensor interpretation”, New Manual of Seismological Observatory Practice 2 (NMSOP-2), Potsdam : Deutsches GeoForschungsZentrum GFZ, pp. 1—37. http://doi.org/10.2312/GFZ.NMSOP-2_IS_3.9
Eyre T.S., M. Van Der Baan, “Overview of moment-tensor inversion of microseismic events”, The Leading Edge Aug 2015, Vol. 34, No. 8, pp. 882-888
Eyre S. T., M. Van Der Baan, “Introduction to moment tensor inversion of microseismic events”, GeoConvention 2015
George A. Nested dissection of a regular finite element mesh //SIAM Journal on Numerical Analysis. – 1973. – Т. 10. – №. 2. – С. 345-363.
Kanamori H., G. Ekstrom, A. Dziewonski, J.S. Barker, S.A. Sipkin, “Seismic Radiation by magma injection: an anomalous seismic event near Tori Shima, Japan”, Journal of Geophysical research, v. 98, No. B4, pp. 6511-6522, 1993
Lysmer J., Drake L. A., Bolt B. A. A finite element method for seismology //Methods in computational physics. – 1972. – Т. 11. – С. 181-216.
Marfurt K. J. Accuracy of finite-difference and finite-element modeling of the scalar and elastic wave equations //Geophysics. – 1984. – Т. 49. – №. 5. – С. 533-549.
Maxwell S., J. Deere, “An introduction to this special section: Microseismic”, The Leading Edge, 2010
Minolia A., Cesar A., DA. Kopriva. “Discontinuous Galerkin Spectral Element Approximations on Moving Meshes.”, Phys, 2011
Orszag, Steven A., "Comparison of Pseudospectral and Spectral Approximation", 1972 Studies in Applied Mathematics. 51 (3): pp. 253–259
Pellegrini F., “Static mapping by dual recursive bipartitioning of process and architecture graphs”. Proceedings of SHPCC'94, Knoxville, Tennessee, pp. 486-493. IEEE Press, 1994
Patera A. T. A spectral element method for fluid dynamics: laminar flow in a channel expansion //Journal of computational Physics. – 1984. – Т. 54. – №. 3. – С. 468-488.
Shuck T., D.E. Diller, B. Fish, P. Smith, K. Wallace, “Surface microseismic in an extreme environment”, The Leading Edge(2015),34(8), pp.936 http://dx.doi.org/10.1190/tle34080936.1
Stanek F., J. Valenta, D. Anikeev, “Semblance for Microseismic Event Detection”, SEG 2014
Teukolsky S. A. Short note on the mass matrix for Gauss–Lobatto grid points //Journal of Computational Physics. – 2015. – Т. 283. – С. 408-413.
Thakur R., W. Gropp, “Improving the Performance of Collective Operations in MPICH”, Springer, 2003, pp. 257-267.
Thakur R., W. Gropp, B. Toonen, “Optimizing the Synchronization Operations in MPI One-Sided Communication,” Int’l Journal of High Performance Computing Applications, (19)2, pp. 119-128, 2005.
Tinney W. F., Walker J. W. Direct solutions of sparse network equations by optimally ordered triangular factorization //Proceedings of the IEEE. – 1967. – Т. 55. – №. 11. – С. 1801-1809.
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