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The AAPG/Datapages Combined Publications Database

Showing 31,959 Results. Searched 200,616 documents.

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Effects of tool eccentricity on acoustic logging: Theory and field example

Bo Rao, Yuanda Su, Shengqing Li, Xiaoming Tang

International Meeting for Applied Geoscience and Energy (IMAGE)

...-dipole and nonquadrupole component waves. Similarily, Wei and Wang (2016) studied the acoustic wavefield excited by an eccentric quadrupole source...

2024

Abstracts: Determining Elastic Constants of an Orthorhombic Material by Physical Seismic Modeling; #90173 (2015)

Faranak Mahmoudian, Gary F. Margrave, P. F. Daley, and Joe Wong

Search and Discovery.com

... the vertical component data to provide the P-wave group velocity, followed by radial and transverse component data to obtain the S-waves group velocity...

2015

The Response of Suspended Particulate Material to Upwelling and Downwelling Events in Southern Lake Michigan

Chang-Hee Lee , Nathan Hawley

Journal of Sedimentary Research (SEPM)

... the stratified period. Resuspension of bottom material by surface wind waves occurs in shallow water (13 m), but this material is not transported...

1998

Magnetic Stratigraphy of the Lower and Middle Miocene Astoria Formation, Lincoln County, Oregon

Donald R. Prothero, Clio Z. Bitboul, George W. Moore, Ellen J. Moore

Pacific Section SEPM

... of representative samples from the Astoria Formation. Solid squares indicate horizontal component; open squares indicate vertical component. AF = alternating field...

2001

Distribution of Surface Pebbles with Changes in Wave Energy on a Sandy Estuarine Beach

Karl F. Nordstrom , Nancy L. Jackson

Journal of Sedimentary Research (SEPM)

... particles are moved onshore from this location by low-energy post-storm accretional waves and offshore by outflow from the beach water table, leaving...

1993

The Interpretation of Vertical Sequences in Turbidite Beds: The Influence of Longitudinal Flow Structure

Benjamin C. Kneller, William D. McCaffrey

Journal of Sedimentary Research (SEPM)

...: Amsterdam, Elsevier, 167 p. DADE, W.B., AND HUPPERT, H.E., 1995, A box model for non-entraining, suspension-driven gravity surges on horizontal surfaces...

2003

Relationships Between Wave-Induced Currents and Sediment Grain Size on a Sandy Tidal-Flat

G.C. Malvarez, J.A.G. Cooper, D.W.T Jackson

Journal of Sedimentary Research (SEPM)

... Vol. 71 (2001), No. 5. (September), Studies of sedimentation on sandy tidal-flats have long acknowledged that tidal flows and waves are the most...

2001

Fracture characterization at multiple scales using borehole images, sonic logs, and walkaround vertical seismic profile

Romain Prioul, Jeroen Jocker

AAPG Bulletin

... displacement component aligned toward the source. The horizontal transverse displacement is orthogonal to the radial direction, also in the horizontal...

2009

Abstract: Determining Scale Properties from Seismic Transmission Responses: A Modeling Study; #90171 (2013)

Emmanuel L. Bongajum and Bernd Milkereit

Search and Discovery.com

... first break events from the vertical and horizontal components of the transmitted wavefield. The presence of energy on the horizontal component (<20...

2013

Abstract: Determining Scale Properties from Seismic Transmission Responses: A Modeling Study; #90171 (2013)

Emmanuel L. Bongajum and Bernd Milkereit

Search and Discovery.com

... first break events from the vertical and horizontal components of the transmitted wavefield. The presence of energy on the horizontal component (<20...

2013

An Explanation of the Logarithmic Spiral Plan Shape of Headland-Bay Beaches

Paul H. Leblond

Journal of Sedimentary Research (SEPM)

.... IVERSON, H. W., 1951, Studies of wave transformation in shoaling water, including breaking, in Gravity Waves: Washington, D.C., National Bureau Standards...

1979

Hybrid 3D Marine Towed-Streamers and Ocean-Bottom Nodes Survey - Challenges and Solutions for Seismic Data Processing and Imaging

Wai Leng Cheah, Wong Li Ming Joyce, Evonne Hooi Rong Yu, Artem Sazykin, Gavin Menzel-Jones

Indonesian Petroleum Association

... methodology to remove shear-wave energy from the Z-component is to use recorded shear signal from the horizontal components (X- and Y-components...

2019

Abstract: Duplex Wave Migration … Imaging Vertical Boundaries; #90211 (2015)

Brian Link and Naum Marmalevsky

Search and Discovery.com

... the kinematics of the double duplex waves that undergo two bounces – the first one is off one of the horizontal layers and a second bounce is off...

2015

The Hydrodynamics of the Big Horn Basin: A Study of the Role of Faults (1)

J. D. BREDEHOEFT , K. BELITZ , and S. SHARP-HANSEN

AAPG Bulletin

... as horizontal barriers to flow. The hydraulic head at depth over much of the Big Horn basin is near the land surface elevation, a condition usually defined...

1992

Abstract: Tomographic Reflected-Wave FWI Using Time Lag; #90254 (2016)

Geoff Clark, Yilong Qin

Search and Discovery.com

... of model. In addition, the gradient of refracted waves has poor lateral sensitivity since their wave path is mostly horizontal. Therefore, wave-equation...

2016

Predicting Frac Performance and Active Producing Volumes Using Microseismic Data

Charles J. Sicking, Jan Vermilye, Alfred Lacazette

Unconventional Resources Technology Conference (URTEC)

... with residual statics. Figure 4: Top panel shows the raw trace data with surface waves from the well head and surface waves Figure 5: Long Duration Signals...

2015

Dispersal Patterns and Diagenesis of Oolitic Calcarenites in the Ste. Genevieve Limestone (Mississippian), Missouri

Stephen L. Knewtson, John F. Hubert

Journal of Sedimentary Research (SEPM)

... sections are difficult to correlate because the dominant depositional process was migration of cross-bedded sand waves across discontinuous layers...

1969

On the Labeling, Length, and Objective Basis of Fischer Plots

P. M. Sadler, D. A. Osleger, I. P. Montanez

Journal of Sedimentary Research (SEPM)

..." and the horizontal axis "cycle number". The typical Fischer plot is an erratic bridge that begins and ends at the same elevation but has the form...

1993

Sediment Dispersal Pattern Off an Eroding Delta on the West Coast of Taiwan

James T. Liu, Ray T. Hsu, Jeong-Shang Huang, Shenn-Yu Chao

Special Publications of SEPM

... of the M2 component. Longshore currents in this area are dominated by tidal currents (Lin et al., 1995; Liu et al., 1998; Wen et al., 1995). Low-frequency...

2003

Modern Evaporite Deposition in Coastal Peru

Robert C. Morris, Parke A. Dickey

Tulsa Geological Society

.... Chemical studies have shown a horizontal salinity gradient from the mouth to the head of the Bocana (fig. 2), in which the concentration of total...

1957

Hydrogeology of Formation Waters, Northeastern Alberta Basin

Stefan Bachu, J. R. Underschultz

AAPG Bulletin

... gradient (aquifer slope) and |^nablaHo|h represents the horizontal component of the freshwater hydraulic-head gradient. For an isotropic porous medium...

1993

Integrating Core Data and Wireline Data for Formation Evaluation and Characterization of Shale Gas Reservoirs; #41073 (2012)

John Quirein, Dan Buller, Jim Witkowsky, and Jerome Truax

Search and Discovery.com

... velocities will be an average of the multiple layers. In a horizontal well, the compressional waves travel parallel to the axis of the tool, which...

2012

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