Large-Scale Seismogenic Deformation of A Carbonate Platform Straddling the Precambrian–Cambrian Boundary, Karatau Range, Kazakhstan

Christoph Heubeck, Gappar Ergaliev, Sergey Evseev

Journal of Sedimentary Research (SEPM)

... (Shandong Province, China): soft-sediment deformation induced by storm-wave loading: Sedimentology, v. 56, p. 1174– 1195. Chen, J., Chough, S.K., Han, Z...

Microseismic imaging with three-component borehole sensors

Jakob B. U. Haldorsen

International Meeting for Applied Geoscience and Energy (IMAGE)

... larger than half the wavelength of any given signal in that waveform. These ambiguities come about when one uses the Fourier transform to expand a wavefield...

Upward and Downward Migrations of Fluids in the Subsurface

Kinji Magara

CSPG Bulletin

..., L. W., 1956, Elastic wave velocities in heterogeneous and porous media: Geophysics, v. 21, no. 1, p. 41-70. Wyllie, M. R. J., Gregory A. R. separates...

The Application of PSDM VTI Method to Generate a Velocity Model That Can Solve the Mistacking Problem

Aulia Ahmad Nafis, Hasan Nurudin, Ikhsan Hanurogo, Bagus Sapto M, Ahmad Zaenudin

Indonesian Petroleum Association

... image using a seismic method, it needs a velocity model that is able to define appropriately the velocity of wave propagation in the subsurface...

Predicting uniaxial compressive strength using Support Vector Machine algorithm

Hafedz Zakaria, Rini Asnida Abdullah, Amelia Ritahani Ismail, Mohd For Mohd Amin

Geological Society of Malaysia (GSM)

... that has been set up could be used repeatedly for other correlation problems. Keywords: unconfined compressive strength, dry density, sonic wave velocity...

Recognition Of Deltas by Fitting Trend Surfaces to Upper Pennsylvanian Sandstones in North-Central Texas

E. G. Wermund, W. A. Jenkins Jr.

Special Publications of SEPM

..., including coal beds, were not input. X and Y coordinates were recorded from a n arbitrary origin point in the southwest corner of the map. Amounts...

Convolution model theory-based intelligent AVO inversion method for VTI media

Yuhang Sun, Yang Liu, Hongli Dong

International Meeting for Applied Geoscience and Energy (IMAGE)

..., we utilized logging data and layer information interpolation, which encompassed low-frequency P-wave velocity, S-wave velocity, and density. Next...

Abstract: Fracture and Fault Imaging from VSP Data; #90174 (2014)

Simon J. Emsley

Search and Discovery.com

.... Examples of imaging and further analysis e.g. shear wave splitting; will also be discussed which demonstrate that these methods can be effective...

5-D Interpolation Compensates for Poor Sampling, by Daniel Trad; #41504 (2014).

Search and Discovery.com

Studies of Reservoir Diagenesis, Burial History, and Petroleum Migration Using Luminescence Microscopy

Roger K. Mclimans

Special Publications of SEPM

...-pressure mercury lamp (long-wave UV, 365nm) is the excitation source. The long-wave UV is reflected to the sample by a dichroic mirror, and the emitted...

The use of FWI in coal exploration

Mehdi Asgharzadeh, Maryam Bahri, Milovan Urosevic

Petroleum Exploration Society of Australia (PESA)

... the time interval t. For a given model m of the subsurface, the forward problem (wave equation) can be solved using numerical methods mod...

The Shale Activity Test (SAT); #41855 (2016)

Konstandinos Zamfes, Chris Smart, Steve Zamfes

Search and Discovery.com

.... The resulting equation is: kDTC_ma = ∑ 𝑉𝑜𝑙 ∗ ∆𝑡𝑐 (after Crain) 5. The compressional sonic travel time can be calculated using the following equation...

Estimation of anisotropic parameters from semblance picking using dynamic programming

Hong Liang, Houzhu (James) Zhang, Dongliang Zhang, Hongwei Liu, Xu Ji

International Meeting for Applied Geoscience and Energy (IMAGE)

... the feasibility. The two-way traveltime in an isotropic medium is given by the following normal moveout equation: Introduction Anisotropy has become...

The Impact of Pore Geometry and Microporosity on Velocity-Porosity Relationship in Carbonates of Central Luconia, Sarawak; #41030 (2012)

Nor Sara Izzatti Bashah and Bernard Pierson

Search and Discovery.com

... scattering along the Wyllie’s time average equation. The large scattering in most cases will result in large uncertainties in seismic inversion...

Fluid and Petrophysical Prediction in the Elastic Impedance Domain Using Neural Network Technique; #41066 (2012)

M. Hermana, M. Najmi, Z.Z.T. Harith, and C.W. Sum

Search and Discovery.com

... subtends to the negative B axis. The equivalent expression for equation (3) as EEI is: (5) where α = P-wave velocity, ρ = density, β = S-wave velocity, p...

Insights from Stratigraphic Modeling: Mud-Limited Versus Sand-Limited Depositional Systems

William C. Ross , Dale E. Watts , Jeffrey A. May

AAPG Bulletin

... (A) of sand that will be deposited in deep-water (below-wave-base) environments is given as Equation (12) The area of sand trapped in the topset...

Behavior of Grain Size Characteristics on Reflective and Dissipative Foreshores, Broken Bay, Australia

Edward Bryant

Journal of Sedimentary Research (SEPM)

...), Beach morphology, wave-current dynamics, or sediment attributes such as grain-size changes and sorting processes intrinsically characterize each other...

Imaging of Fractures and Faults inside Granite Basement Using Controlled Beam Migration (Geophysics Paper 5)

Don Pham, Jason Sun, James Sun, Qingbing Tang, Graeme Bone, Nguyen Truong Giang

Geological Society of Malaysia (GSM)

... migration algorithm, representing a high-frequency approximation to the acoustic wave equation. When multi-arrivals occur, it has to select one...

Unfathomable: The shifting sand of wave base

Eugene C. Rankey, Christian M. Appendini

Journal of Sedimentary Research (SEPM)

...,” and suggested that it was controlled by the most energetic half day of waves annually; he also provided an equation based on wave height for its estimation Depth...

Analysis of Time-lapse Multicomponent Seismic Data from a Potash Mining Area in Saskatchewan, Canada, #41275 (2014)

Andrew Nicol, Don Lawson

Search and Discovery.com

... within the Dawson Bay carbonates. Furthermore, interval velocity analysis shows an increase in Vp/Vs ratio indicating a decrease in shear wave...

Critical Porosity in Understanding Acoustic Porosity Anomalies. A Case Study in Complex Carbonate Reservoir in Indonesia

Aditya Arie Wijaya, Sunawar Kunaifi, Krishna Pratama Laya, Luqman, Dimmas Ramadhan

Indonesian Petroleum Association

... increase. SONIC POROSITY ANOMALY The sonic porosity is calculated using P-wave data (slowness) and applying the Wyllie equation. The matrix slowness...

High-resolution FWI of converted-wave data A case study from the Edvard Grieg field

Per Eivind Dhelie, Vidar Danielsen, Jon Andre Haugen, Emilie Davenne, Knut Richard Straith, Alireza Roodaki, Manuel Peiro, Alexis Fotsoh, Wenlei Gao, Nabil Masmoudi, Andrew Ratcliffe

International Meeting for Applied Geoscience and Energy (IMAGE)

... with PPPS event registration was performed prior to outputting the initial Vs model used to start the Vs FWI process. The elastic wave equation contains Vp...

Exploring the horizontal component of OBN surveys for added value to imaging

Samara Omar, Jim Simmons, Carlos Calderón

International Meeting for Applied Geoscience and Energy (IMAGE)

..., the P-wave image from the Marmousi2 Hcomponent supplements and thus reduces uncertainty in the interpretation from the vertical (Z) component reflected...

Pore-Pressure Prediction in the Permian Basin Using Seismic Prestack Inversion

Colin Sayers, Lennert den Boer

Unconventional Resources Technology Conference (URTEC)

... it, the pressure exerted by fluid inside the rock opposes compaction, reducing the wave velocity. Measurable effects of stress change, including compaction...

Abstract: Full Waveform Inversion of Crosswell Seismic Data Using Automatic Differentiation; #90187 (2014)

Danping Cao and Wenyuan Liao

Search and Discovery.com

...-fitting procedure based on the seismic waveform data to estimate the model parameters, which usually appear as coefficients in a wave equation. The most...