A Practical Discussion of 3D Seismic Surveys

Howell Pardue, Stephen Jumper, Frank Brown, Peter Morton

West Texas Geological Society

... and it is left to the interpreter to convert to depth. Rapid velocity changes, such as those giving rise to velocity “pull ups”, may not be readily...

Profiler-Sonobuoy Measurements in Colombia and Venezuela Basins, Caribbean Sea

William J. Ludwig , Robert E. Houtz , John I. Ewing

AAPG Bulletin

... in composition, or the intercalated sediments have a compar ble high velocity. Linear magnetic anomalies of large amplitude and long wavelength that resemble sea...

Optimum Candidate Selection of Coiled Tubing Velocity String Application for Liquid Loaded Gas Wells

Satria Andrianata, Keken Rante Allo, Ade Lukman

Indonesian Petroleum Association

... backpressure needs the higher minimum critical velocity to remove liquid in wellbore. A liquid loading in a low pressure gas well generally occurred at a depth...

Petrophysical Relationship to Predict Synthetic Porosity Log; #41124 (2013)

Thariq Guntoro, Intan Putri, and Ayi Syaeful Bahri

Search and Discovery.com

... was used so that the synthetic log porosity in reservoir characterization with a depth of 5,500 ft could be estimated. When the P-wave velocity log...

Inversion of magnetotellurics data with enhanced structural fidelity

Federico Golfré Andreasi, Simone Re, Federico Ceci, Luca Masnaghetti

Petroleum Exploration Society of Australia (PESA)

... to generate the seismic traces (Figure 1a) and we mapped the velocity into the resistivity using the values reported in Table 1. Figure 1b shows...

Pore Pressure and Elastic Moduli Estimation Considerations for a Simplified Geomechanical Model for Unconventional Plays. A case study in the Vaca Muerta Formation

Sergio Cuervo, Ezequiel Lombardo

Unconventional Resources Technology Conference (URTEC)

... affecting the velocity-effective stress relation are accounted for. Using (8) with the adjusted compositional coefficients, with a consistent function...

RhoVe Method Empirical Pore Pressure Transform, #42301 (2018).

M. Czerniak,

Search and Discovery.com

... to a well of interest. By using the comparative velocity-density function that match an offset well in sonic-density cross-plot space, normal VES for each...

Abstract: Improving Subsalt Imaging Using 3D Basin Model Derived Velocities, by Stephan PETMECKY, Martin L. ALBERTIN, and Nick BURKE; #90066 (2007)

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Abstract: Estimation of Hydraulic Conditions of Turbidity Currents by Inverse Analysis; Application on Cretaceous Panther Tongue Deposits, Utah, USA, by Hajime Naruse and Cornel Olariu; #90079 (2008)

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Inferring Maximum Geostrophic Current Velocities in the Norwegian-Greenland Sea from Settling-Velocity Measurements of Sediment Surface Samples: Methods, Application, and Results

Klaus H. Michels

Journal of Sedimentary Research (SEPM)

... of the particles (settling velocity and grain size), current speeds were determined using a critical curve for the threshold of sediment transport (Miller et...

Seismic Imaging and Interpretive Model Building in the Colombian Andes

Rob Vestrum

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

.... Depth migration in thrust-belt environments like the Colombian Andes requires an interpretive approach to building a depth-migration velocity model...

Prestack true-amplitude angle-domain viscoelastic least squares reverse time migration

Yue Wang, Yang Luo, Peng Shen, Jingru Chen, Guangchi Xing, Ao Cai, Mark Fan, Guojian Shan, Lin Zhang, Xiaoting Lou, Zhengyun Zhou

International Meeting for Applied Geoscience and Energy (IMAGE)

... maximum angle of each reflector, which is dependent on depth of each reflector, the velocity model, and the offset limit of surface data. Note...

Characterization of a Sediment Core from Potential Gas-hydrate-bearing Reservoirs in the Sagavanirktok, Prince Creek, and Schrader Bluff Formations of Alaska's North Slope: Part 2Porosity, Permeability, Grain Density, and Bulk Modulus Core Studies*

R. F. Sigal, C. Rai, C. Sondergeld, B. Spears, W. J. Ebanks Jr., W. D. Zogg, N. Emery, G. McCardle, R. Schweizer, W. G. McLeod, J. Van Eerde

AAPG Special Volumes

... in confining stress using equation 1 from the discussion of the phase I samples. Figure 12 shows a plot of the bulk modulus as a function of depth...

An Interpreter's Guide to Improvements in Depth Imaging through Model-Based Velocity Estimation and Refinement

Andy Furniss

Petroleum Exploration Society of Australia (PESA)

... predictions in the depth domain, from simply improving our initial velocity models using model-based ray-tracing techniques through to the ultimate...

4-D Seismic: A Powerful New Technology for Monitoring Steam Movements in Duri Field-Central Sumatra

S. D. Jenkins, M. F. Bee, J. H. Lyle, E. Murhantoro

Indonesian Petroleum Association

... cores show that significant velocity changes occur as a function of variation in temperature, pore pressure, and fluid phase. Temperature surveys...

A Coupled Petrophysical-Geophysical Model Demonstrates Velocity Dispersion in a Thin-bedded, Fluvial Reservoir; #40913 (2012)

Richard C. Odom

Search and Discovery.com

... on linear statistical models and do not account for dispersion. 4. An improved time-depth chart is published for this section of the survey based on a linear...

Velocity model building with a time shift objective function: Gulf of Mexico examples

Yi Yang, Ken Matson, Tadas Krupovnickas, Mark Huiskes, Rene-Edouard Plessix, Sijmen Gerritsen

International Meeting for Applied Geoscience and Energy (IMAGE)

...Velocity model building with a time shift objective function: Gulf of Mexico examples Yi Yang, Ken Matson, Tadas Krupovnickas, Mark Huiskes, Rene...

U-net based primary alignment

Ricard Durall, Ammar Ghanim, Norman Ettrich

International Meeting for Applied Geoscience and Energy (IMAGE)

... consistency between the two outputs. To achieve that, we apply the predicted time-shift onto the input gather, using a mapping function (𝑚), and we compare...

Gabor Depth Migration using a New Adaptive Partitioning Algorithm

Yongwang Ma

Search and Discovery.com

... (a). All depth images have been created using prestack shot migration. Figure 3. (a) Marmousi velocity. (b) Gabor depth migration result (a lateral...

Gabor Depth Migration using a New Adaptive Partitioning Algorithm

Yongwang Ma

Search and Discovery.com

... (a). All depth images have been created using prestack shot migration. Figure 3. (a) Marmousi velocity. (b) Gabor depth migration result (a lateral...

Despiking Ultrasonic Doppler Velocity-Profiling Data

Jonathan D. Wright, Jaco H. Baas

Journal of Sedimentary Research (SEPM)

... and turbulence structure of sediment-laden gravity currents: new insights using ultrasonic Doppler velocity profiling,, in McCaffrey, W., Kneller, B...

Sonic Saturation Inversion and AVO Modeling in the Tunu Gas Field

Patrick Fouchard, Scott Leaney, Sugimin Harsono

Indonesian Petroleum Association

... on the assumption that G remains constant under fluid substitution. There is evidence for G being a log-linear function of porosity and independent...

Abstract: Data Processing from a Single-Well Microseismic Monitoring in Western Canada Using a Newly Developed MATLAB Based Package (Camps); #90224 (2015)

Jubran Akram and David W. Eaton

Search and Discovery.com

... velocity model was calibrated with the recorded perforation shots using a non-linear optimization (pattern-search based) approach (Akram and Eaton...

Abstract: Seismic Imaging in the Foothills of the Zagros Mountains Using Geologic Constraints, by R. Vestrum, #90188(2014)

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Elastic Wave Propagation in Fractured Media Using the Discontinuous Galerkin Method

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