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The AAPG/Datapages Combined Publications Database
Showing 34,496 Results. Searched 200,673 documents.
Time-Domain High-Resolution Radon Transform (Geophysics Paper 4)
Michel Schonewille, Peter Aaron, Carl Notfors
Geological Society of Malaysia (GSM)
... utilizing moveout differences were applied in the F-K domain. The procedure was typically to first apply NMO with a velocity slightly slower than the medium...
2008
Enso and Sunspot Cycles in Varved Eocene Oil Shales from Image Analysis
Maurizio Ripepe , Lillian T. Roberts , Alfred G. Fischer
Journal of Sedimentary Research (SEPM)
... and stacking can be observed and experimented with step-by-step. Time-series Analysis We recall that while the core segments analyzed were on the order...
1991
Limitations of Reflection Seismograph
L. E. Nugent, Jr.
AAPG Bulletin
... the difference in corrected arrival time of the end traces, V the average velocity between the datum or shot and the reflecting horizon, and l the spread length...
1953
Imaging Solutions for Geophysical Challenges in South East Asia (Paper A13)
N. El Kady, Z. Mohd Dom, Y. Prasetyo, M. Bayly, G. Nyein, P. Vasilyev, N. Mat Don Ya
Geological Society of Malaysia (GSM)
... anomalies, major faulting and “fault shadow” effect, and seismic velocity anisotropy estimation and implementation. We will address each part...
2012
Abstract: Regional Subsurface Mapping of the Northwest Northwest Territories; #90171 (2013)
B.C. MacLean
Search and Discovery.com
.... Horizon picks were exported for hand contouring at 1:50,000 scale in a GIS mapping system (ArcMap). The intent is to publicly release shapefiles of Time...
2013
Unconventional Processing for 3D Data: A 1993 Case History
Claude Eizlini, Jacques Bonnafe, Bugi Kamil, Gilles Bitoun
Indonesian Petroleum Association
... the preliminary velocity analysis and the post-DMO stacking velocity analysis. Velocity and Statics NMO and Statics are of the same basic nature: time...
1994
Abstract: Application of Target-oriented VVAZ on Relatively thin Fracture Reservoir; #90174 (2014)
Stephen K. Chiu, Jack Howell, Jason A Stein, Samik Sil, and Jeff Malloy
Search and Discovery.com
... Model 2 Model 3 Time (sec) 0.6 0.9 1.2 Figure 2. Limited-offset gathers sorted by azimuth with NMO correction of three models, showing...
2014
Understanding Multiples to Upgrade Low-Relief Prospects
Sunu H. Praptono, Witan O. Ardjakusumah
Indonesian Petroleum Association
... or a multiple of an overlying event due to insufficient structural dip and/or a stacking velocity contrast. This gives rise to difficulties especially...
1996
Flow velocity model for a coastal estuarine sandbar using multivariate regression
Edlic Sathiamurthy, Nurul Syamimi Pauzi
Geological Society of Malaysia (GSM)
.... Direct measurement of groundwater velocity is difficult, and usually time consuming and expensive especially in a complex system, i.e. TOCE. 0126-6187...
2020
Seismic and Well Interpretation of Fluvial Clastic and Coal Packages for Stratigraphic Traps within the Patchawarra Formation, Cooper Basin
Christopher Webb
Petroleum Exploration Society of Australia (PESA)
... as (red, negative amplitude, trough). To tie wells to the main seismic reflectors, a time stretch is considered necessary below the topmost Permian coals...
2015
Woollybutt 2001: A Geoscience Odyssey
D. J. Hearty, M. A. Battrick
Petroleum Exploration Society of Australia (PESA)
... within the grid. The Top Reservoir average velocity map, derived from the time and depth maps, is displayed in Figure Sc and shows the decreasing...
2002
U-net based primary alignment
Ricard Durall, Ammar Ghanim, Norman Ettrich
International Meeting for Applied Geoscience and Energy (IMAGE)
... application the effect becomes more detailed. This fact, together with the ability to smooth or filter the time-shifts provides greater user influence...
2023
Time-Lapse Seismic and Geomechanics
Martin Landrø, Lasse Amundsen
GEO ExPro Magazine
... that such stretching will reduce the P-wave velocity of the rock, and hence will introduce an overburden time shift. Guilbot and Smith (2002) used 4D...
2017
III Columbia Oil & Gas Investment Conference: Conventional & Unconventional Hydrocarbon Resources - Abstracts
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... datum, based on rms and interval velocities estimated at reflector positions, not at reflection positions. (3) The velocity model building is based...
2008
Abstract: Time-Lapse FullWaveform Inversion Application To Seismic Monitoring Of CO2 Sequestration; #90224 (2015)
Wubshet Alemie
Search and Discovery.com
... in attenuating small fluctuations in the time-lapse velocity difference as compared to the independent inversion. Introduction Seismic inversion is the most...
2015
3-D High-Resolution Reservoir Characterization from Crosswell Seismic Data
John Washbourne, Kenneth Bube
West Texas Geological Society
... are inherently more complex (e.g., braided streams, or the overthrusted Strawn). The variations in interwell flow paths have a critical effect on how each well...
1998
Petroleum Geologist and Exploration Geophysicist: Co-Ordination and Seismic Velocity
John D. Hale
CSPG Bulletin
... then are the subsurface geological anomalies that could effect an abnormal change in density of the subsurface formations, and what are the observed velocity...
1956
There Is A Reason
Gordon Rittenhouse
AAPG Bulletin
... way of thinking about rocks. When our objective is limited, such as in identifying a subsurface structural datum, our choice may be easy, because our...
1959
The Contribution of Simple Seismic Modeling for Reef Distribution Mapping
Soetomo J.A., Bambang Santoso
Indonesian Petroleum Association
.... Drapping effect. "Pulled down" effect, and Interval velocity anomaly across the reef (Encl. 21). Based on stacking velocity a geological model...
1985
Prestack Depth Imaging Within the Makassar Straits, Eastern Kalimantan, Indonesia
Chris Willacy, Suryadi Oemar, A. Edy Hermantoro, Paul Gilleran
Indonesian Petroleum Association
... bottom and related multiples exist, which although encountered at a later time than the target, have a dramatic effect on the imaging...
2000
Exploration of the North Seribu Area, Northwest Java Sea
Roberto Fainstein
Indonesian Petroleum Association
... filter, the multiple flat events were removed. After transforming back into the time domain, the NMO correction was removed. Conventional velocity...
1987
Chapter 3: Preparation of Seismic Data for Stratigraphic Work
Tom Wittick
North Texas Geological Society
.... Statics are applied to correct the seismic data to a particular datum and to correct for variations of the velocity of the near-surface layers. Shot...
1992
Preparation of Seismic Data For Stratigraphic Work
Abilene Geological Society
... are applied to correct the seismic data to a particular datum and to correct for variations of the velocity of the near-surface layers. Shot...
1993
Abstract: Non-Hyperbolic Reflection Tomography for Better Imaging and Interpretation, by Zhaobo Meng and Chengbin Peng; #90105 (2010)
Search and Discovery.com
2010
Seismic-Based Volcano Identification and Characterization in HD Oilfield, Tarim Basin; #10747 (2015)
Yaonan Li, Guizhong Wang, Desheng Sun, Hongmei Zhang, Zhen Zou, Lin Yu, Sheng Cao
Search and Discovery.com
... of reservoir heterogeneity, VTI velocity analysis is firstly implemented. Figure 5 gives the comparison of the conventional and VTI NMO velocity analysis...
2015