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The AAPG/Datapages Combined Publications Database

Showing 20,860 Results. Searched 200,691 documents.

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Monopole slow formation shear head wave Greens function in a LWD borehole acoustic configuration

Tim Geerits, Stefan Schimschal, Anna Swiatek

International Meeting for Applied Geoscience and Energy (IMAGE)

...Monopole slow formation shear head wave Greens function in a LWD borehole acoustic configuration Tim Geerits, Stefan Schimschal, Anna Swiatek...

2022

Brazos River Bar: A Study in the Significance of Grain Size Parameters

Robert L. Folk, William C. Ward

Journal of Sedimentary Research (SEPM)

... -.31 and -.55. It is possible to work out a general equation for helical trends of this type, wherein the wave length of 360° gives the phi interval FIG...

1957

Transdimensional Bayesian gravity inversion and uncertainty analysis for salt reconstruction

Xiaolong Wei, Jiajia Sun, Mrinal K. Sen

International Meeting for Applied Geoscience and Energy (IMAGE)

... (e.g., Panagiotakis and Argyros, 2016; Datta et al., 2019) and each ellipse is characterized by five parameters, namely, coordinates of the centroid (cx...

2022

Holocene Shallow-Water Carbonate and Evaporite Sediments of Khor al Bazam, Abu Dhabi, Southwest Persian Gulf

Christopher G. St. C. Kendall , Sir Patrick A. D'e. Skipwith

AAPG Bulletin

... to 1 mm and may be cylindrical and ellipsoid (Fig. 4B), spherical (Fig. 4C), or irregular (Fig. 4D). Solution of all pellets with HCl leaves...

1969

Magnetic Anomalies and Crustal Structure in Eastern Gulf of Mexico

D. I. Gough

AAPG Bulletin

...., S. Hendricks, W. E. Daniels, and D. C. Jensen, 1964, Computation of the main geomagnetic field from spherical harmonic expansions: N.A.S.A. Pub. TMX...

1967

Reflection waveform inversion assisted by full-wavefield imaging

Mikhail Davydenko, Eric Verschuur

International Meeting for Applied Geoscience and Energy (IMAGE)

... 2014b), both based on a one-way wave equation, and translate this concept to a two-way wave equation framework. A similar approach has been introduced...

2022

Abstract: The Application of The Nearly Optimal Sponge Boundary Conditions for Seismic Wave Propagation in Poroelastic Media; #90171 (2013)

Jingyi Chen and Ralph Phillip Bording

Search and Discovery.com

... the Biot/Squirt theory to include the solid/fluid coupling anisotropy and develop a general 3D poroelastic wave equation in time domain including both...

2013

Abstract: The Application of The Nearly Optimal Sponge Boundary Conditions for Seismic Wave Propagation in Poroelastic Media; #90171 (2013)

Jingyi Chen and Ralph Phillip Bording

Search and Discovery.com

... the Biot/Squirt theory to include the solid/fluid coupling anisotropy and develop a general 3D poroelastic wave equation in time domain including both...

2013

Broadband Seismic Technology and Beyond: Part III: The Interaction between Ocean Waves and Recorded Seismic Data

Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

... decreases wave number. From the dispersion equation we can estimate as the wind velocity increases. the period of a sinusoidal ocean wave...

2013

Transformation of Resistivity to Pseudovelocity Logs

Albert J. Rudman , Joseph F. Whaley , Robert F. Blakely , Maurice E. Biggs

AAPG Bulletin

...^prime for an elastic wave to travel through a porous medium (Wylie, 1957, p. 115) depends on porosity according to the theoretical relation EQUATION (3...

1975

Diving wave tomography: Velocity modelling using first arrival traveltime

Amatul Syafi Abdul Basit, Abdul Rahim Md Arshad, Arulini Permalu

Geological Society of Malaysia (GSM)

... in seismograms, used for FWI which employs full wave equation modelling especially for area as complex as Marmousi and the Valhall oil field...

2022

Time-lapse FWI prediction of CO2 saturation and pore pressure

Qi Hu, Kristopher Innanen

International Meeting for Applied Geoscience and Energy (IMAGE)

... a complete rock physics workflow combing the modified Macbeth’s relation and Gassmann’s equation to predict elastic properties as a function...

2023

Robust multichannel prestack AVA inversion based on elastic L1/2 norm

Nanying Lan

International Meeting for Applied Geoscience and Energy (IMAGE)

...1 is the model parameter consisting of the logarithm of P-wave impedance, S-wave impedance, and density. For the case of multiple CDP, equation 6 can...

2023

Abstract: Determination of AVO Attributes for Hydrocarbon Resources Region of Malay Basin: The Fluid Factors (Geophysics Paper 4)

T. L. Goh, Uzir Alimat, Shaidin Arshad, M. Izzuljad Ahmad Fuad

Geological Society of Malaysia (GSM)

... equation (Castagna et al. 1985), Vp=1.16Vs+1360 and Gardner’s relation (Gardner el al.1974), Δ=0.23Vp0.25 and was developed based on brine saturated...

2011

Experiments on Wedge-Shaped Deep Sea Sedimentary Deposits in Minibasins and/or on Channel Levees Emplaced by Turbidity Currents. Part II. Morphodynamic Evolution of the Wedge and of the Associated Bedforms

Benoit Spinewine, Octavio E. Sequeiros, Marcelo H. Garcia, Rick T. Beaubouef, Tao Sun, Bruno Savoye, Gary Parker

Journal of Sedimentary Research (SEPM)

.... 25–34. Kubo, Y., and Nakajima, T., 2002, Laboratory experiments and numerical simulation of sediment-wave formation by turbidity currents: Marine...

2009

ABSTRACT: Geostress Assisted Evolving Permeability Anisotropy and Its Possible Implication in Hydrocarbon Exploration and Exploitation; #90118 (2011)

R. K. Dubey

Search and Discovery.com

... induced acoustic emission and seismic wave (primary wave) response of rocks under variable stress conditions. The utilized concept may be helpful...

2011

Abstract: Insights into Volcanic Rocks as Petroleum Reservoirs from Laboratory and Field Permeability Measurements; #90295 (2017)

Ben Kennedy, Michael Heap, Alan Patrick Bischoff, Andy Nicol, Marlene Villeneuve, Jamie Farquharson, Jim Cole

Search and Discovery.com

... and breccias, sandstones, and intrusive tonalities. In total, we measured P and S wave velocities, porosities, uniaxial and triaxial strength...

2017

Hyperspectral Imaging Technology Development and Application; Implications for Thin-Bedded Reservoir Characterization; #42119 (2017)

Tobi Kosanke, Stephanie E. Perry, Ruben Lopez

Search and Discovery.com

... industry, hyperspectral imaging uses a combination of short-wave infrared light (SWIR), visible near-infrared light (VNIR), and longwave infrared light...

2017

Stratigraphic Evolution of Blake Outer Ridge

R. G. Markl , G. M. Bryan

AAPG Bulletin

... derivatives: EQUATION (7) whence EQUATION (8) Defining ^egr = ^ggrv cos^Thgrk , and choosing the origin of coordinates (z,^xgr) at a point...

1983

Permeability characterization of natural compaction bands using core flooding experiments and three-dimensional image-based analysis: Comparing and contrasting the results from two different methods

Shang Deng, Lin Zuo, Atilla Aydin, Jack Dvorkin, and Tapan Mukerji

AAPG Bulletin

... of Structural Geology, v. 33, p. 1477–1490, doi: 10.1016/j.jsg.2011.08.001. Fortin, J., A. Schubnel, and Y. Guéguen, 2005, Elastic wave velocities...

2015

Sequential Stage Development of Crescentic Bars: Hahoterim Beach, Southeastern Mediterranean

Victor Goldsmith, Dan Bowman, Kevin Kiley

Journal of Sedimentary Research (SEPM)

... or crescentic shore-attached or detached bars of both outer and nested inner systems were delineated at HaHoterim beach, northern Israel. The concomitant wave...

1982

A new double-difference earthquake relocation algorithm for models with complex velocity structure

Xinding Fang, Siwei Li, Zhixiang Zhang, Tianrun Chen, Yingcai Zheng

International Meeting for Applied Geoscience and Energy (IMAGE)

... events) that minimize the cost function of equation (5) and then use grid search to search for a global offset for all We perform elastic full-wave...

2024

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