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The AAPG/Datapages Combined Publications Database

Showing 21,647 Results. Searched 200,293 documents.

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Simulation of the Genesis of Current Ripples by Means of a Cellular Automaton

J. J. P. Zijlstra

Special Publications of SEPM

... Urn at the water surface The near bottom velocity Ud at height D grain diameter and the difference between the near bottom velocities of cells i attd i...

1999

A Note on the Age of the Canada Basin

Lawrence A. Lawver, Arthur Baggeroer

Alaska Geological Society

...-loaded basement depth, sedimentation rate, and average sediment density for the central Canada Basin. Comparison of the corrected basement depth...

1983

Abstract: Estimation of Q-factor and Phase Velocity Using the Recovered Stress-strain Relaxation Spectrum; #90172 (2014)

Dali Zhang, Michael P. Lamoureux, Gary F. Margrave

Search and Discovery.com

... wave propagating in a homogeneous isotropic viscoelastic medium with constant material properties. The equation of motion and the relation between...

2014

VIII. Conversion of Seismic Data to Log-Like Displays

Norman S. Neidell

AAPG Special Volumes

... so that they can better discriminate between true event velocities and multiple velocities. The wavelet used in the synthetic seismogram...

1979

Velocity and Velocity

M. Al-Chalabi

Petroleum Exploration Society of Australia (PESA)

... for depth conversion. More crucial is the fact that the relation between the velocities and provelocities follows no simple or systematic pattern...

2000

Impact of the Stress State and the Natural Network of Fractures/Faults on the Efficiency of Hydraulic Fracturing Operations in the Goldwyer Shale Formation

Partha Pratim Mandal, Reza Rezaee, Joel Sarout

Australian Petroleum Production & Exploration Association (APPEA) Journal

... studies, the relationships between fracture orientation and distribution, in-situ stress state and the pore pressure perturbation (DPp) caused...

2020

Destructive vs Non-destructive: Establishing an Empirical Relationship between Impulse Hammer and Triaxial Test - Derived Rock Mechanical Properties

Maaruf Hussain, Arqam Muqtadir, Abduljamiu Amao, Khalid Al-Ramadan, Lamidi Babalola

Unconventional Resources Technology Conference (URTEC)

...Destructive vs Non-destructive: Establishing an Empirical Relationship between Impulse Hammer and Triaxial Test - Derived Rock Mechanical Properties...

2019

Cyclic Deposits and Hummocky Cross-Stratification of Probable Storm Origin in Upper Cretaceous Rocks of the Cape Sebastian Area, Southwestern Oregon

Ralph E. Hunter, Edward H. Clifton

Journal of Sedimentary Research (SEPM)

...-sorted fine-grained sand (average grain size in thin section between 0.12 and 0.20 mm, maximum grain size between 0.25 and 0.35 mm). It also contains...

1982

Upper Cretaceous Shannon Sandstone: An Offshore, Shallow-Marine Sand Body

Darwin R. Spearing

Wyoming Geological Association

... area prograded eastward at an average rate of about 80 km per million years. Figure 4. Cross section showing relation of Shannon Sandstone to other late...

1976

Quantifying the Benefit from Pressure Gradient Data in Wavefield Reconstruction for Time-Lapse Seismic, #40843 (2011)

Phil Christie, Kurt Eggenberger, Everhard Muyzert, Massimiliano Vassallo, Ali Özbek

Search and Discovery.com

... to assess the interpolation errors. Comparisons are made between the reconstructed traces and the undecimated traces both within the same time-lapse...

2011

Permeability and acoustic velocity controlling factors determined from x-ray tomography images of carbonate rocks

Nathaly L. Archilha, Roseane M. Missagia, Cathy Hollis, Marco A. R. de Ceia, Samuel A. McDonald, Irineu A. Lima Neto, David S. Eastwood, and Peter Lee

AAPG Bulletin

... relation between DomSize (from x-ray CT) and average pore-throat diameter (from MIP) was observed. Figure 11 shows the pore-throat diameters...

2016

Computer Simulation of Carbonate Sedimentary and Shallow Diagenetic Processes

Fumiaki Matsuda, Michinori Saito, Ryotaro Iwahashi, Hiroshi Oda, Yoshihiro Tsuji

AAPG Special Volumes

...). Descriptions of facies are summarized in Table 1.FIGURE 4. Current directions and velocities at high and low tides during average spring tides...

2004

Mapping Stratigraphic Traps with Seislog

Roy O. Lindseth

Indonesian Petroleum Association

... velocities (and the effects of density) of the same sedimentary section. The sonic log and the related set of reflection coefficients, ignoring density...

1977

Limitations on Resolution of Seismic Reflections and Geologic Detail Derivable from Them: Section 1. Fundamentals of Stratigraphic Interpretation of Seismic Data

Robert E. Sheriff

AAPG Special Volumes

..., or the time between successive points where the phase is the same). We can measure the dominant period on our records. The basic relation for wavelength...

1977

Development and Evaluation of Multiphase Closure Models used in the Simulation of Unconventional Wellbore Dynamics

Travis Mitchell, Bryce Hill, Mahshid Firouzi, Christopher Leonardi

Unconventional Resources Technology Conference (URTEC)

... in pumped wells. In this work, high-fidelity computational fluid dynamics is used to capture the momentum interaction between gas and liquid phases...

2019

The Threshold of Grain Motion Under Oscillatory Flow in a Laboratory Wave Channel

John R. Dingler

Journal of Sedimentary Research (SEPM)

..., this relation becomes T = 0.17(d02/D)1/3 (sec). BAGNOLD, R. A., 1946, Motion of waves in shallow water: Interactions between waves and sandbottoms: Proc. Roy...

1979

Flow Dynamics at River Channel Confluences: Implications for Sediment Transport and Bed Morphology

James L. Best

Special Publications of SEPM

... of discharges between the confluent channels. Through the combined use of scaled laboratory modelling and an analysis of field evidence, the dynamics of flow...

1987

Estimating Average Fracture Spacing in Subsurface Rock

Wayne Narr

AAPG Bulletin

... to be no more accurate than the average aperture approach (· in Figure 5). The error bars shown in Figure 5 are an estimate only of the RMS uncertainty...

1996

Fluid Mechanics

Jeffrey S. Hanor

Special Publications of SEPM

... in sediments. First, at very high fluid velocities, there is no longer a linear relation between velocity and Vh. or Second, energy is required...

1988

2.3 Detached Sediments in Extensional Provinces: 2.3.2 Salt Tectonics: Salt Diapirs--East Texas Basin

M. Engleman and D. A. Kemmer

AAPG Special Volumes

.... However, ambiguities in interpretation can arise from the placement of the seismic profile in relation to the salt dome. In normal subsurface work...

1983

EXTENDED ABSTRACT: Regional Mapping in the Ultra-Deepwater Gulf of Mexico

Alfredo Sánchez-Monclú, Claudio Bartolini, B. José C. Vicente

GCAGS Transactions

... between the southern edge of the Sigsbee Scarp, the westernmost Florida Platform, the northern part of Yucatan Platform and eastward of the Mexican...

2011

Chapter 4: Synthetic Seismograms and Their Uses

Tom Wittick

North Texas Geological Society

... reflector at a specific depth. In most cases the difference in acoustic velocity between rocks is the dominant factor in determining the reflection...

1992

Synthetic Seismograms and Their Uses

Abilene Geological Society

... depth. In most cases the difference in acoustic velocity between rocks is the dominant factor in determining the reflection coefficient and the density...

1993

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