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The AAPG/Datapages Combined Publications Database

Showing 34,490 Results. Searched 200,663 documents.

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Monitoring Sea-floor Instability Caused by the Presence of Gas Hydrate Using Ocean Acoustical and Geophysical Techniques in the Northern Gulf of Mexico

Erika Geresi, Ross Chapman, Tom McGee, Bob Woolsey

AAPG Special Volumes

.... The velocity information from the migration of the VLA for each individual CRG was combined. Velocity information from traveltime inversion in previous...

2009

Inverse 4D seismic timeshifts: How much do our reservoirs rebound?

Jan Stammeijer, Duane Mikulencak, Chen Bao

International Meeting for Applied Geoscience and Energy (IMAGE)

... of the polarity of change. This means that we assume that the overburden R factor (ratio of velocity changes to strains) remains the same between overburden...

2023

Abstracts: Challenges and Solutions in Locating and Interpreting Microseismic Events from Surveys in the Horn River Basin; #90173 (2015)

Ulrich Zimmer

Search and Discovery.com

... for anisotropy in the velocity model, at the very least a sensitivity study can show what its potential effect on the event location and the interpretation...

2015

Acoustic Tomography for Reservoir Surveillance: Reservoir Characterization and Modeling

J. H. Justice, M. E. Mathisen, A. A. Vassiliou, S. Singh , P. S. Cunningham, J. R. Bulau

AAPG Special Volumes

... Characterization Seismic traveltime tomography reconstructs the seismic velocity field between two boreholes. To the extent that these velocity...

1991

Abstract: LSPSM for Pre-and Poststack Time Lapse Studies; #90187 (2014)

Abdolnaser Yousefzadeh and John C. Bancroft

Search and Discovery.com

... the effect of fluid movement in a reservoir by a small difference in the traveltime of an event, or a change in seismic attributes, such as reflectivity...

2014

Anisotropy Analysis in Shale Using Advanced Sonic Data - Bakken Case Study, #41049 (2012)

Mehdi Ostadhassan, Zhengwen Zeng, Hadi Jabbari

Search and Discovery.com

... that in an isotropic medium the density is uniform throughout the material and the waves velocity does not change with respect to the direction...

2012

Effect of Moisture Upon Velocity of Elastic Waves in Amherst Sandstone

W. T. Born, J. E. Owen

AAPG Bulletin

...Effect of Moisture Upon Velocity of Elastic Waves in Amherst Sandstone W. T. Born, J. E. Owen 1935 9 18 19 1. (January) Laboratory measurements...

1935

Abstract: What are you Interpreting? Is your Seismic Image Flawed?; #90211 (2015)

Rachel Newrick, Jim Pullishy, and Elvira Gomez

Search and Discovery.com

... and Colombia highlight the necessity for an accurate velocity model and illustrate the dramatic effect of a small percentage change in velocity. We show...

2015

A Comparison of Depth-Conversion Methods in the Gulf of Mexico

Melvan D. Carter, Gary R. Hyatt

GCAGS Transactions

... the prospect does not change significantly in the velocity, or (2) the constituents are at or near the same value. For many small prospects and 3D surveys...

1990

Geoscience Integration and Interpretive Model Building to Overcome Seismic Imaging Problems in Foothills Environments; #41547 (2015)

Rob Vestrum

Search and Discovery.com

..., automated velocity-model-building tools fail to produce an optimum velocity model for TTI anisotropic depth migration. In a setting with such under...

2015

Fast Shear Azimuths in the Marcellus Shale from VSP and Crossed Dipole Sonic Data; #42161 (2017)

Steve Horne, David Rampton, John Crowe

Search and Discovery.com

... a lower rate of shear-wave splitting compared with the walkaround VSP. Such an effect is consistent with previous observations which are attributed to scale...

2017

A Comparison between Geostatistical Inversion and Conventional Geostatistical-simulation Practices for Reservoir Delineation

C. Torres-Verdn, A. Grijalba-Cuenca, H. W. J. Debeye

AAPG Special Volumes

... of geostatistical inversion is the need to convert well-log data from depth to seismic traveltime. In addition, geostatistical inversion may be rendered...

2006

The Role of Fault Interaction and Linkage in Controlling Synrift Stratigraphic Sequences: Late Jurassic, Statfjord East Area, Northern North Sea

Nancye H. Dawers and John R. Underhill

AAPG Bulletin

... has not been depth converted. Although velocity variations in detail may affect the patterns observed in synrift thickness and fault throw, well...

2000

Geomechanical prestack depth migration of the Kraken 3D (Browse Basin, Australia)

Jarrod Dunne, Ferudun Kilic, Matthew Zengerer, Pramod Kumar, Hamish Stein, Shiv Pujan Singh, Stephen Gallagher

Petroleum Exploration Society of Australia (PESA)

... applied to the broadband Kraken 3D Marine Seismic Survey was unable to fully resolve shortwavelength velocity anomalies below the sea floor causing...

2018

Porosity Reduction in Sandstone by Quartz Overgrowth: REPLY

Frederic Leder, Won C. Park

AAPG Bulletin

... and Park, 1986), ^rgr should be deleted; this should not change our velocity since ^rgr = 1 in our computation. A bracket is missing in our equation 42...

1988

Ultrasound Tomography Optimalization by Using Robotic Application

Albertus Ariel Rahadi, Tedy Setiawan

Indonesian Petroleum Association

... of the conducted research are given in the form of P wave velocity from a sample and its tomography result by using MSIRT method (Modified Simultaneous Iterative...

2016

Enhancing conventional VSP data to broadband and its quantitative improvement on lookahead inversion

Hussain Almarzooq

International Meeting for Applied Geoscience and Energy (IMAGE)

...Enhancing conventional VSP data to broadband and its quantitative improvement on lookahead inversion Hussain Almarzooq Enhancing Conventional VSP...

2022

Characteristics of Velocity-Porosity Relationships in the Baturaja Limestone Reservoir: A Case Study in the South Sumatra Basin

Muhamad Noor Ali

Indonesian Petroleum Association

... increasing of adsorption effect. The properties of reservoirs such as porosity and fluid content affect velocity and bulk density. Wireline logging is used...

2002

Abstract: Tomography of a Velocity Modeland Location of Microseismic Events with P, Sv and Sh Waves; #90224 (2015)

Malgorzata Chmiel and Thomas Bardainne

Search and Discovery.com

... set from hydraulic fracturing monitoring, recorded by 15 three components sensors. Additionally, we derived a 1D, 10 layers velocity model from a VSP...

2015

Estimating Thermal Conductivity in Sedimentary Basins Using Lithologic Data and Geophysical Well Logs (1)

FREDERIC BRIGAUD , DAVID S. CHAPMAN , and SYLVIE LE DOUARAN

AAPG Bulletin

... velocity: Geologie en Mijnbouw, v. 59, p. 215-224. Kappelmeyer, O., and R. Haenel, 1974, Geothermics with special reference to application...

1990

Spectral Decomposition in a Heavy-oil and Bitumen Sand Reservoir

Carmen C. Dumitrescu, Larry Lines

AAPG Special Volumes

... and, as a result, the amplitude of the reflection. This effect is not dependent on frequency. However, the effect of change in fluids saturation on velocities...

2013

Submarine Debris Flows and Continental Slope Evolution in Front of Quaternary Ice Sheets, Baffin Bay, Canadian Arctic

R. N. Hiscott, A. E. Aksu

AAPG Bulletin

... change: Geological Association of Canada, p. 349-374. Cook, H. E., 1979, Ancient continental slope sequences and their value in understanding modern...

1994

Gated based quantum computer algorithm for geophysical inversion

Jorge E. Monsegny, Daniel Trad, Don C. Lawton

International Meeting for Applied Geoscience and Energy (IMAGE)

... |2 |3 1/2 |0 |1 |2 |3 −1/2 1/2 |0 |1 |2 |3 1 |0 |1 |2 |3 −1/2 Figure 2: Mirror stage effect on the velocity models superposition in register v...

2023

Measuring permanence of CO2 storage in saline formations: the Frio experiment

Susan D. Hovorka, Sally M. Benson, Christine Doughty, Barry M. Freifeld, Shinichi Sakurai, Thomas M. Daley, Yousif K. Kharaka, Mark H. Holtz, Robert C. Trautz, H. Seay Nance, Larry R. Myer, Kevin G. Knauss

Environmental Geosciences (DEG)

... of the pre- and postinjection data sets (Figure 9) show strong velocity changes in the area between the wells at approximately the same region as change...

2006

A Statistical Approach to Assessing Depth Conversion Uncertainty on a Regional Dataset: Cooper-Eromanga Basin, Australia

David Kulikowski, Catherine Hochwald, Dennis Cooke, Khalid Amrouch

Petroleum Exploration Society of Australia (PESA)

..., and which have a relatively negligible effect. (1) The four depth conversion methods used are described below. Average (pseudo) Velocity (Vavg) Method...

2016

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