Results 21 to 30 of about 101,450 (259)
Applied Sciences, 2020 P-wave velocity is employed in various fields of engineering to estimate the mechanical properties of rock, as its measurement is reliable, convenient, rapid, nondestructive, and economical.
Hasan Arman, Safwan Paramban
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地质科技通报, 2023 Objective Revealing the variation behavior of P-wave velocity in fractured rock masses is of great significance for the quality grading and stability evaluation of rock masses for engineering purposes. Methods The nonfilling single fracture granite of an
Yangbing Cao +5 more
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Mathematics, 2023 Amplitude-versus-angle (AVA) inversion for pre-stack seismic data is a key technology in oil and gas reservoir prediction. Conventional AVA inversion contains two main stages.
Ronghuo Dai, Jun Yang
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Experimental Research into the Ultrasonic P-Wave Velocity of Coal Slime Based Backfill Material
Applied Sciences, 2023 To study the influences of different mix proportions of materials on the ultrasonic p-wave velocity of coal slime based backfill materials, influences of four factors on the p-wave velocity of specimens were investigated by designing orthogonal tests and
Baifu An +5 more
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An improved P-wave velocity reference model for Costa Rica [PDF]
Geofísica Internacional, 2001 We derive a P-wave 1D-velocity model for Costa Rica that may serve for routine high-precision earthquake location and as initial reference model for 3D seismic tomography.
Edi Kissling, Ronnie Quintero
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Constraints on Crustal P Wave Structure With Leaking Mode Dispersion Curves
Geophysical Research Letters, 2021 Classic surface wave imaging relies mainly on the dispersion of Rayleigh waves or Love waves. In addition to these types of waves, waveforms that arrive prior to the S wave also exhibit dispersion. These early dispersed waves are controlled mainly by the
Zhengbo Li, Caiwang Shi, Xiaofei Chen
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Iraqi Journal of Chemical and Petroleum Engineering, 2021 The Compressional-wave (Vp) data are useful for reservoir exploration, drilling operations, stimulation, hydraulic fracturing employment, and development plans for a specific reservoir.
Qahtan Adnan Abdul Aziz +1 more
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Hemodynamic Data Analysis and Site of Measurement in Children and Adolescents
Artery Research, 2020 Pulse wave velocity is a method of functional vascular evaluation. The gold standard is the carotid-femoral pulse wave velocity measurement. However, the software allows measurement among radial, carotid and femoral artery.
Mirjam Močnik, Nataša Marčun Varda
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A Simple Method for P-waves Velocity Estimation Using Pore Attributes Shape Factor and Tortuosity
Aceh International Journal of Science and Technology, 2020 Several researchers have arranged an approach to estimating the P-wave velocity, but none of them specifically relates to the pore attribute. Pore attributes are one of the main factors that affect pore complexity and rock quality.
Muhammad Burhannudinnur, Suryo Prakoso
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P-wave velocity anisotropy in crystalline rocks [PDF]
Geophysical Journal International, 1984 Summary. Compressional wave velocities and anisotropy coefficients determined at high hydrostatic pressures are compiled from the data published for the main types of crystalline rocks. The crack-free elastic anisotropy of igneous crustal rocks is generally very low, between 1 and 3 per cent on average. The anisotropy of metamorphic rocks is higher (up
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