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The AAPG/Datapages Combined Publications Database
Showing 34,490 Results. Searched 200,663 documents.
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