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The AAPG/Datapages Combined Publications Database
Showing 33,361 Results. Searched 196,128 documents.
Determination of Average Grain Sphericity in Granular Porous Media
Basanta K. Sahu
Journal of Sedimentary Research (SEPM)
... for the effect of random thin sectioning is needed as the sectional sizes are usually smaller than the true size since the section plane does...
1974
Bed-Thickness Structure of Multi-Sourced Ramp Turbidites: Devonian Brallier Formation, Central Appalachian Basin
Carl N. Drummond
Journal of Sedimentary Research (SEPM)
... with thickness measurements are largely random, and are considered to be sufficiently uncommon to cause no significant effect on reported thickness...
1999
Compensational Stacking of Channelized Sedimentary Deposits
Kyle M. Straub, Chris Paola, David Mohrig, Matthew A. Wolinsky, Terra George
Journal of Sedimentary Research (SEPM)
... by comparing observed stacking patterns in subsiding basins to what would be expected from uncorrelated random stacking. This method uses the rate...
2009
Rhomboid Ripple Marks and their Relationship To Beach Slope
David F. Demarest
Journal of Sedimentary Research (SEPM)
... the results of experiments by H. Engles (1905) at Dresden, Bucher states, "... the first effect of transportation by a uniform current...
1947
Optimization of Infill Drilling in Naturally Fractured Tight Gas Sandstone Reservoirs in the San Juan Basin - Workshop Summary
Lawrence Teufel, Scott Cooper, John Lorenz, Bruce Hart, Robin PEarson, Hamoud Al-Hadrami, Her-Yuan Chen, Arild Sunde, Mike Kelly
PTTC
... to geometries of the original surveys, low signal-to-noise ratios, coherent noise and seismic thin beds. In analyzing the data, the seismic data were separated...
2000
Listening with Light!
Jane Whaley
GEO ExPro Magazine
... and noise.” Hilde concludes that “a permanently installed system, leading to enhanced repeatability from survey to survey, significantly aids oil companies...
2007
Marine Seismic Sources: Part VII: Fish are Big Talkers
Martin Landrø, Lasse Amundsen
GEO ExPro Magazine
... the effect of seismic scattering from the ice layer that was dis- 50 0 -50 0 0.5 1.0 Time (s) 66 GEO ExPro MARCH 2011 1.5 turbing reflections...
2011
A Compensated Spectral Natural Gamma Ray* Logging System
C. Kessler, R. Washa, G. S. Yarbro
Indonesian Petroleum Association
... curve NOIS is the count rate in a window with an energy level just below the photo-electric window in the tool. Any noise in the CSNG system would...
1984
Exploring Geophysical Exploration
Carl H. Savit
Houston Geological Society Bulletin
... spot. In effect, this process uses the information contained in the amplitude of seismic reflections in combination with other data to derive...
1989
Anisotropic Multi-Azimuthal Velocity Model Building and Depth Imaging on Tulip 3D Coil Shooting Survey
Michele Buia, Suyang Chen, Olga Zdraveva, Swee Leng Ng, Martin Bayly, Michelle Tham
Indonesian Petroleum Association
... of these complexities is poor overall seismic response, very low amplitude or near invisible target reflections, very low signal-to-noise ratio (S/N), poor imaging...
2011
Concentration Changes of Ca, Cu, Li, Mg, K, Na, and Sr in the Hudson River, New York: NOTES
Burton P. Fabricand, Eugene S. Imbimbo, Mary E. Brey
Journal of Sedimentary Research (SEPM)
... samples. This procedure insured approximate equality of viscosity and negated the effect of sodium on the absorptions of the other alkali metals...
1968
A Decade of 4D Seismic Monitoring of Carbonate Gas Reservoirs in Offshore Sarawak, Malaysia (Paper A6)
Paul Hague, Chiem Boon Hong
Geological Society of Malaysia (GSM)
...-repeatable noise on 4D seismic data. For these reasons, Shell has adopted a cautious approach to implementing 4D seismic monitoring of the Miocene...
2012
Seismic Migration: Part 7. Geophysical Methods
Ken Larner, David Hale
AAPG Special Volumes
... signal-to-noise ratio while producing a seismic time section that simulates what would have been recorded in a zero-offset seismic survey, that is, one...
1992
Abstract: Sub-Salt and Sub-Basalt Imaging Using Long Offset and Multicomponent Seismic Data, by J. Gaiser, N. Jones, and P. Fontana; #90923 (1999)
Search and Discovery.com
1999
Abstract: Applying the Phase Congruency Algorithm to Seismic Data Slices A Carbonate Case Study; #90171 (2013)
Brian Russell, Dan Hampson, and John Logel
Search and Discovery.com
... for frequency spread and a noise threshold. However, equation (1) is sufficient for an understanding of the basic algorithm. More importantly, Kovesi...
2013
Learning from 40 Years Experience: Risking Seismic Amplitude Anomaly Prospects; #110139 (2010)
Mike Forrest
Search and Discovery.com
....” Factors: o Rock physics o Seismic signal-to-noise ratio o Geology vs. seismic resolution. Review the Seismic and Rock Physics. Can DHI’s be a factor in your...
2010
Wave-Equation-Based Target-Oriented Inversion for Reservoir Characterisation, #41759 (2016).
Dries Gisolf, P.R. Haffinger, P. Doulgeris
Search and Discovery.com
... example a gas-related amplitude effect was revealed that had not been identified on the seismic data. Reference Cited Beller, M. P. Doulgeris, A. Gisolf...
2016
An Hypothesis of Diastrophism
R. C. Tuttle
Tulsa Geological Society
... of the regular cycles), some at apparent random periods, (passage of some large body through space close enough to affect the solar system). In terms...
1945
Size and Shape of Rock-fragments in Tuscarora Scree, Fishing Creek, Lamar, Central Pennsylvania
J. C. Griffiths
Journal of Sedimentary Research (SEPM)
... (H), Spalding (S), and Wood (W) were assigned to alternate spots. The first spot was selected at random and the subsequent spots were uniformly spaced...
1959
Comments on the Wegener Hypothesis
Edward W. Berry
AAPG Special Volumes
... to account for their predicated effect. Geodetic observations that are cited as showing changed positions on the earth's surface are extremely minute...
1928
Compaction and Porosity Evolution of Pliocene Sandstones, Ventura Basin, California: REPLY
John C. Wilson, Earle F. Mcbride
AAPG Bulletin
.... (October) Atwater, G. I., and E. G. Miller, 1965, The effect of decrease in porosity with depth on future development of oil and gas reserves in south...
1989
Abstract: Rotation of 3D Objects: The Importance of Center of Rotation, by Joshua Coyan and Stephen Reynolds; #120140 (2014)
Search and Discovery.com
2014
Subsidence and Heat Flow in Intracontinental Basins and Passive Margins
Jean-Claude Mareschal
CSPG Special Publications
... (i.e., on the initial conditions). Unfortunately, the examples show that such a procedure amplifies the effect of noise and errors in the data...
1987
Enhanced Vertical Flow Profile Determination of Fractured Basement Wells Using Temperature Log Interpretation
Ahmad Faisal
Indonesian Petroleum Association
... is limited to the deflection of the log curve, in line with the Joule – Thompson effect in the producing well; a swing to the left means a cooling...
2022
Use of Machine Learning on SCADA Data for Assets Prognostics Health Management
Alexandre Cesa, Elliot Press
Australian Petroleum Production & Exploration Association (APPEA) Journal
... 8 A, B, C feed composition (stream 4) Random 9 D feed temperarure (stream 2) Random 10 C feed temperarure (stream 4) Random 11 Reactor...
2020