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The AAPG/Datapages Combined Publications Database

Showing 33,361 Results. Searched 196,128 documents.

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Ascending

Forecast Optimization and Value of Information under Uncertainty

William J. Bailey, Benoit Couet, Michael Prange

AAPG Special Volumes

... a noise-induced spike that is not a real solution). Unless one is deeply cognizant of the problem at hand, the nature of the solution surface almost...

2011

A Comparison of Clast Fabric and Shape in Late Precambrian and Modern Glacigenic Sediments

Julian A. Dowdeswell, Michael J. Hambrey, Ruitang Wu

Journal of Sedimentary Research (SEPM)

... from random at a 95% level of confidence (Woodcock and Naylor 1983). Unless water-laid sediments of glacial origin have been subject...

1985

Relationship between mineralogy and porosity in seals relevant to geologic CO2 sequestration

Alexander M. Swift, Lawrence M. Anovitz, Julia M. Sheets, David R. Cole, Susan A. Welch, and Gernot Rother

Environmental Geosciences (DEG)

..., An investigation of the effect of pore scale flow on average geochemical reaction rates using direct numerical simulation, Water Resources Research, v. 48...

2014

Sandstone Imbrication Study in Planar Sections: Dispersion, Biasses, and Measuring Methods

G. S. Gibbons

Journal of Sedimentary Research (SEPM)

... of grains in thin section, the effect is to decrease parallelism if c-axes were originally random with respect to length; where there is a strong correlation...

1972

Sensitivity analysis of geological rule-based subsurface model parameters on fluid flow

Honggeun Jo, Michael J. Pyrcz, Fabien Laugier, and Morgan Sullivan

AAPG Bulletin

... produced with further water injection. In contrast, a compensational stacking pattern has no such effect, producing more oil than random stacking...

2023

Expression of the Colorado Mineral Belt in Upper Cretaceous Niobrara Formation Source Rock Maturity Data from the Denver Basin

David J. Thul, Stephen A. Sonnenberg

Rocky Mountain Association of Geologists

... were available (generally only for analyses from the USGS-CRC), they were reviewed for common issues such as bimodal peaks, high noise-to-signal ratio...

2018

Diagnostic Applications of Borehole Hydraulic Signal Processing

Connor J. Clark, Jennifer L. Miskimins, Dana L. Gallegos

Unconventional Resources Technology Conference (URTEC)

... across many industries where they are a regular occurrence (due to the hammering noise they often make within pipes), however a more accurate...

2018

ONSHORE APPLICATIONS OF 3-D SEISMIC TECHNOLOGY 3D DATA ACQUISITION

Tom Davis, Steve Roche, and Susie Mastoris

Fort Worth Geological Society

...", "halo"). There are two main components to be considered in computing the required aperture, dip effect and fresnel zone width. The dip effect...

1993

ABSTRACT:MULTICOMPONENT OBC (4C) PRESTACK TIME IMAGING OVER PAMBERI, LRL BLOCK, OFFSHORE TRINIDAD

Tony Johns, Carmen Vito and Raul Sarmiento

Geological Society of Trinidad & Tobago

... in a down-thrown fault trap that make up the prospect; however, the up-thrown side experiences a problematic shadow effect. This cannot be explained...

2007

Abstract: Resolving The Discrepancies Between Vertical Seismic Profiles And Petrophysical Logs, At Least A Few Of Them; #90213 (2015)

John D. Logel and Rick Kuzmiski

Search and Discovery.com

... phase matching and exhibits a strong time varying effect. The easiest explanation for this is attenuation or ‘Q’. The concept of attenuation ‘Q’ has been...

2015

A Multidisciplinary Approach to Reservoir Characterization of the Coastal Entrada Erg-Margin Gas Play, Utah (OFR-459)

Thomas H. Morris, John H. McBride, Will D. Monn

Utah Geological Survey

... it or right at the contact. The North Field also displays a similar relationship; however, it tends to be a little more random and not entirely visible...

2005

Demonstrating an Acceptable Level of Impact: An Assessment of Noise Impacts to Fishes from a Seismic Survey in an Australian Marine Park

Joe Edgell, Jeremy Colman, Samantha Jarvis, Ollie Glade-Wright

Australian Petroleum Production & Exploration Association (APPEA) Journal

...Demonstrating an Acceptable Level of Impact: An Assessment of Noise Impacts to Fishes from a Seismic Survey in an Australian Marine Park Joe Edgell...

2019

Integrated Workflows for Drilling Optimization and Enhanced Production

Jakob Heller, Venkatesh Anantharamu, Andrew Lewis, Bruce Karr, Ron Bianco

Unconventional Resources Technology Conference (URTEC)

... resolve surface waves characterized by low velocity and low frequency. This benefits ground roll noise attenuation techniques that model and subtract...

2023

Quantification of fold curvature and fracturing using terrestrial laser scanning

Mark A. Pearce, Richard R. Jones, Steven A. F. Smith, Kenneth J. W. McCaffrey

AAPG Bulletin

... and produces a point cloud with a more homogeneous density. It also acts to smooth very short wavelength noise from the data, although further smoothing...

2011

Petrography-Porosity Relations in Carbonate-Quartz System, Gatesburg Formation (Late Cambrian), Pennsylvania

Richard E. Smith

AAPG Bulletin

... is considered to be random variation or noise. The rotated-component matrix also is represented in a simplified manner in Table IV, where the significant...

1969

Global Sea-Level Changes During the Past Century

Vivien Gornitz, Sergej Lebedeff

Special Publications of SEPM

...-term elements, however, are essentially random on a global scale. The influence of these random fluctuations can be reduced by selecting an appropriate...

1987

Intisar 'D' Oil Field, Libya

T. J. Brady, N. D. J. Campbell , C. E. Maher

AAPG Special Volumes

... to the residual effect of the oil structures rather than renewed tectonic activity. The relatively rigid Precambrian and Paleozoic highs acted...

1980

Simulation of Recovery Losses due to Positional Errors in Wellbore Placement

Stefan Maus, Jarrod S. DeVerse

Unconventional Resources Technology Conference (URTEC)

... simulator web application was developed to approximate the effect of wellbore positional error on reservoir drainage. The application requires input...

2016

Origin and Development of the New Volcano, Paricutin, Mexico

Fred M. Bullard

Tulsa Geological Society

... impressive effect is the feeling of depression as the desolation increases. Everywhere the surface is covered with black cinders, the trees have turned yellow...

1943

Whale Strandings and Seismic in Tasmanian Waters „ Is There a Correlation?

Chris Boron, Clive Calver

Petroleum Exploration Society of Australia (PESA)

.... The seismic signal decays rapidly with distance- w ith ambient noise levels considered to be 80-120 db spectra I (dependant on sea state), the sound...

2007

Integrated Amplitude versus Offset (AVO) Approach for Delineating Stratigraphic Traps

M. Azuddin M. Yusof

Geological Society of Malaysia (GSM)

.... Ramlee, off Jalan Ampang Kuala Lumpur Introduction Amplitude versus Offset (AVO) effect can be explained as increase (or decrease) in seismic amplitude...

1999

Abstract: Fit for Purpose Seismic Reservoir Characterisation (Geophysics Poster 9)

Troy Thompson, Matthew Lamont, Carlo Bevilacqua, Natasha Hendrick

Geological Society of Malaysia (GSM)

... high signal-to-noise ratio and statistical independence (Herrmann and Cambois, 2001). A simple scan through rotation angles can then be undertaken...

2011

Seismic reservoir characterization in a VTI anisotropic media: Case study in Malay Basin

Amir Abbas Babasafari, Deva Prasad Ghosh, Seyed Yaser Moussavi AlAshloo, Yasir Bashir, Chica Sambo, Ahmed M.A. Salim

Geological Society of Malaysia (GSM)

.... Previously anisotropy was considered as noise which needs to be removed from the reservoir. Recent research has changed. The Earth is not isotropic...

2018

ABSTRACT: APPLICATIONS AND IMPLICATIONS OF HIGH RESOLUTION GRAVITY DATA IN THE BLOCK NC190, MURZUQ BASIN, LIBYA; #90016 (2003)

Jose Joaquin Martin, Ali Bengheit, Didier Wloszczowski

Search and Discovery.com

... resolution can be jeopardised by sand dunes up to 100 meters height covering the area with gravity effect calculated using a 20 meter lateral resolution...

Unknown

ABSTRACT Geologic Uncertainty and Geophysical Challenges in Developing a Carbon Sequestration Project, #90103 (2010)

H.E. Leetarua, D. Paddockb, J. H. McBridec, M. L. Couësland

Search and Discovery.com

... sequestration site has limited access for seismic surveys as well as high levels of industrial and cultural noise from surrounding plants, traffic, and trains...

2010

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