3D elastic locating of microseismic sources: a comparison of GPU and CPU implementation
Microseismic events locatingis of utmost importance in seismic exploration,especially in the exploitation process of the unconventional oil and gas resources.Traditional seismic locatingmethods often require clear vertical and horizontal wave travel time information.In this paper,we adopt an approach which use the observed wave field to reversely propagate in timeand then considered the wave fieldas the boundary value for the reverse modeling.Assuming velocity model is accurate,the reversely modelled wave field focuses on the hypocenterof the microseismicevent.In addition,we focus on using the GPU to accelerate the computation of key kernels.Our 3D GPU-based elastic locatingmodeling tests achieved a 20x speedup relative to an OpenMP CPU implementation run on a four-core machine.These GPU-based speedup improvementsallows us to model 3D elastic locating of microseismic eventsat lower hardware cost and with fewer totalcompute resources than heretofore possible.
Microseismiclocating reverse modeling GPUaccelerate
Qingfeng Xue Yibo Wang Xu Chang
Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China;University of C Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China
国内会议
北京
英文
101-104
2014-10-19（万方平台首次上网日期，不代表论文的发表时间）