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The AAPG/Datapages Combined Publications Database
Showing 17,622 Results. Searched 195,387 documents.
Crustal thickness and velocity structure of southern Peninsular Malaysia
Abdul Halim Abdul Latiff, Amin Esmail Khalil
Geological Society of Malaysia (GSM)
... of mean P-wave velocity above the discontinuity and the average horizontal slowness value. Through the initial experimentation, the suitable P-wave...
2018
Stress-Dependent Permeability and Dynamic Elastic Moduli of Reservoir and Seal Shale
Daisuke Katsuki, Anton Padin Deben, Olawale Adekunle, Andrew J. Rixon, Azra N. Tutuncu
Unconventional Resources Technology Conference (URTEC)
... permeability can be explained from the larger amount of S-wave velocity change due to the net stress increase. The dynamic Poisson’s ratio determined from...
2016
Seismic Interpretation I and II--Recent Advances in Seismic Exploration: ABSTRACT
Ray L. Sengbush
AAPG Bulletin
... and diffractions. Horizontal stacking to suppress multiples and increase signal-to-noise ratio requires accurate knowledge of the stacking velocity...
1973
ABSTRACT: Squeezing every drop out of a new OBN dataset (Columbus Basin, Trinidad & Tobago)
Avinash Ramroopsing
Geological Society of Trinidad & Tobago
... of conjugate azimuths to increase signal-to-noise ratio; the use of Legacy Streamer data to constrain the velocity modelling, effectively increasing offset...
2022
Bed-load Movement Experiments: Dry Creek, California: NOTES
E. A. Keller
Journal of Sedimentary Research (SEPM)
..., is the velocity at the boundary between the thin film of laminar flow on the stream bed and the main mass of turbulent water above. Gilbert, in his classical flume...
1970
Geology of the Western Canadian Continental Shelf
D. H. Shouldice
CSPG Bulletin
... are long, linear and approximately parallel to the western coastline of Vancouver Figure 2. Index map of the Canadian west coast. End_Page 407...
1971
Mapping Stratigraphic Traps with Seislog
Roy O. Lindseth
Indonesian Petroleum Association
..., this can be converted to solve for velocity from the series of reflection coefficients: The effect of the application of the above formula...
1977
Acoustic and Related Properties of Calcareous Deep-Sea Sediments
Edwin L. Hamilton, Richard T. Bachman, Wolfgang H. Berger, Thomas C. Johnson, Larry A. Mayer
Journal of Sedimentary Research (SEPM)
... with increasing percentage of CaCO3. Above about 75 percent calcium carbonate there is a very rapid increase in velocity with CaCO3 in the Plateau samples...
1982
General Threshold for Sediment Transport Induced by Mounds
J. Stephen Fries
Journal of Sedimentary Research (SEPM)
...). Additional velocity data were collected at several positions the same elevation above the bed (7 mm) both upstream (0, 2, and 4) and downstream (9, C, D...
2004
Paleomagnetic results from Mayreau, West Indies, rule out large tectonic rotations since the Eocene
Speed, R.G., Burmester, R.F. and Beck, M.E.
Geological Society of Trinidad & Tobago
... of weak and irregular magnetic anomalies. The most recent treatment of such data (Bird and others, 1993) may have resolved several residual linear...
1995
Abstract: Application of Acoustic Waveform Tomography to Marine Seismic Reflection Data Contaminated with Strong Guided Waves; #90187 (2014)
Rajesh Vayavur and Andrew. J. Calvert
Search and Discovery.com
... identify the layering in the sediments and an increase of resolution as the frequency increases. But as we invert for higher frequencies, some velocity...
2014
Diffusion and Settling of Sediments at River Mouths: A Computer Simulation Model
G. F. Bonham-Carter, Alex J. Sutherland
GCAGS Transactions
... that the discharge curves are affected by both velocity and concentration. Fine grained sediments are more uniformly distributed with height above channel base...
1967
Evaluation of possible gas microseepage mechanisms
Alton Brown
AAPG Bulletin
... controls seepage velocity and flux, so geochemical anomalies may indicate an increase in fracture aperture, as well as possible subsurface ac cumulations...
2000
Improving Stratigraphic and Structural Interpretation of Suban 3D Through Advanced Reprocessing
Safitri Nurida, Irfan Yuliandri Syukri, Ludy Andria
Indonesian Petroleum Association
... for this project. interpolation has proven to enhance signal quality and increase the seismic resolution in this complex structure (Figure 9). CBM Velocity...
2019
Visco-Acoustic Full-Waveform Inversion: A Case Study to Resolve High-Resolution Shallow Channel Absorption, Offshore Indonesia
Jun Wang, Yonghe Guo, Putri Supriandini, Kelik Moersidin, Rahmad Hidayat
Indonesian Petroleum Association
... INTRODUCTION Image distortion due to gas-filled shallow channels poses challenges to velocity model building. The slow velocity and strong...
2022
Impact of Velocity Field on AVA Analysis; #42363 (2019)
Ritesh Kumar Sharma, Satinder Chopra
Search and Discovery.com
... Velocity Field versus Well-Driven Velocity Field Computations As stated above, intercept and gradient attributes can be computed using Shuey...
2019
How to Make Velocity Corrections
John W. Daly
AAPG Bulletin
... assumes a linear increase in instantaneous velocity with depth the ray paths are circular. This is one of the more common assumptions used by up-to-date...
1944
Abstract: High-Resolution Three-Dimensional Water Saturation Prediction A Case Study from Offshore Nile Delta; #90319 (2018)
Islam A. Mohamed, Ahmed Hosny, Abdulrahman Ali Mohamed
Search and Discovery.com
..., geostatistical inversion provides a way to increase the vertical resolution of acoustic and shear impedances above that available from seismic data...
2018
Synthetic Seismograms from Vibracores: A Case Study in Correlating the Late Quaternary Seismic Stratigraphy of the New Jersey Inner Continental Shelf
Dominic Esker , Robert E. Sheridan , Gall M. Ashley , Jeffrey S. Waldner , David W. Hall
Journal of Sedimentary Research (SEPM)
.... A linear function relating median grain size and density, and a polynomial function relating median grain size and compressional seismic wave velocity, were...
1996
Integration of Depth Conversion, Seismic Inversoin and Modeling Over The Belida Field, South Natuna Sea Block "B", Indonesia
Patrick Jonklaas
Indonesian Petroleum Association
... The techniques mentioned above are: average velocities (VA). stacking velocities (Vstk), interval velocities (VI) and rate of increase in velocity...
1991
Velocity Dispersion and Attenuation in Vibroseis Data
L. Flora Sun
Search and Discovery.com
... For example, frequency-independent Q (“constant Q”) is related to seismic velocity increasing linearly with log frequency (“linear dispersion”): V (Z ) 1 Z...
Unknown
Velocity Dispersion and Attenuation in Vibroseis Data
L. Flora Sun
Search and Discovery.com
... For example, frequency-independent Q (“constant Q”) is related to seismic velocity increasing linearly with log frequency (“linear dispersion”): V (Z ) 1 Z...
Unknown
ABSTRACT: Predicting Lithology and Reservoir Quality from Acoustic Velocities Based on Petrophysical Classification of Siliciclastics, by Lev Vernik; #91020 (1995).
Search and Discovery.com
1995
A New Perspective to Shallow Water Flow (SWF) and Sinking Well-Head Preventions in Deep Water
Selim Simon Shaker
GCAGS Transactions
... (~200 μs/ft). In zone B the data values show a gradual exponential increasing trend on linear scale (Figs. 1 and 5). The pivot point where the velocity...
2015
Velocity and Velocity
M. Al-Chalabi
Petroleum Exploration Society of Australia (PESA)
... already seen in the velocity cycle, above. As processing in the depth domain became commonplace, many geophysicists concluded that, having overcome...
2000