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The AAPG/Datapages Combined Publications Database
Showing 767 Results. Searched 195,387 documents.
Acoustic approximation VTI reverse-time migration using pseudo-depth mapping method
Xinwen Zhang, Jianping Huang, Zhenchun Li
International Meeting for Applied Geoscience and Energy (IMAGE)
... of elastic waves in two dimension and three dimension by finite difference method. Based on common shot gathers, Du et al. (2012) proposed a method...
2023
Geometric Analysis of Seismic Fault Evidence: GEOLOGICAL NOTES
L. F. Ivanhoe
AAPG Bulletin
... be obtained by improving the skill of the interpreter in descriptive geometry. Seismic waves travel along the shortest time path between the shot hole...
1955
Abstract: Elastic Full Waveform Inversion For Land Walkaway VSP Data; #90224 (2015)
Olga Podgornova, Scott Leaney, Marwan Charara, and Eric von Lunen
Search and Discovery.com
...1d min. D m ,q We define the source wavelets q in time separately for each shot and use the weighted norms in the model and the source wavelet...
2015
Simultaneous inversion of velocity and angle-dependent reflectivity
Nizar Chemingui, Yang Yang, Jaime Ramos-Martinez, Guanghui Huang, Dan Whitmore, Sean Crawley, Elena Klochikhina, Sriram Arasanipalai
International Meeting for Applied Geoscience and Energy (IMAGE)
... of angle gathers follows a process similar to that used in reverse time migration where angle and azimuth maps are computed for each individual shot...
2023
Leveraging Reflection, Refraction, and Multiple Arrivals from Dual-Sensor Streamer Data for High-Fidelity Velocity Model Building and Imaging
G. Rønholt, J.E. Lie, Ø. Korsmo, B. Danielsen, S. Brown, S. Brandsberg-Dahl, A.V. Mavilio, N. Chemingui, D. Whitmore, M. Farouki
Indonesian Petroleum Association
... reflection angles than primaries, as we now have virtual sources along all receiver lines, not just the sparser shot lines. In shot profile wave equation...
2014
Determining Bedding Slip Planes With Microseismic Processing
Natalia Verkhovtseva, Ben Bagherian, Timur Mukhtarov
Unconventional Resources Technology Conference (URTEC)
... component expands to the southeast. Additionally, in this case, there is backward growth of the horizontal component toward the well toe, which could...
2017
Abstract: A Backward Glance at Forward Thinking: A Geologist Takes Stock
L. G. Weeks
GCAGS Transactions
...Abstract: A Backward Glance at Forward Thinking: A Geologist Takes Stock L. G. Weeks 1992 Vol. 42 (1992), Three forms of energy are most notable...
1992
Oil Producing Structures as Related to Major Tectonic Features in Rocky Mountain Area: ABSTRACT
George R. Downs
AAPG Bulletin
... intrusives. It is sugg sted that by "working backward" from known major tectonic features that subsidiary structures may be found which will be proved...
1956
Gulf Coast Magic: ABSTRACT
W. H. Roberts, III
AAPG Bulletin
... the entrapment of water-borne materials (especially hydrocarbons) in the coastal belt. Probably, the same magic can be projected backward (and forward...
1982
ABSTRACT: Stratigraphic pattern of piggy-back basins within the area of the southern Barbados wedge
Huyghe, P., Griboulard, R., Faugeres, J.G., Gonthier, E. and Bobier, C.
Geological Society of Trinidad & Tobago
... the deformation front seaward propagation, out-off sequence reactivations occur backward. Deformation locally induces tilting of beds at a rate of about 1°-2...
1995
Abstract: Wave Propagation Direction from Poynting Vector and its Application to RTM Angle Gathers; #90319 (2018)
Kwangjin Yoon, Young Seo Kim, Woodon Jeong
Search and Discovery.com
... of forward and backward propagating wavefields within some specific range of opening angle and azimuth. Several techniques like Poynting vector...
2018
The Handil Oil Field in East Kalimantan
Ph. Magnier, Ben Samsu
Indonesian Petroleum Association
... by the rivers themselves but moved backward (upstream) at each ebb tide when the sea changes the flow direction in the river mouth. The only navigable passage...
1975
5D Interpolation Using Orthogonal Matching Pursuit (OMP) Algorithm to Recover and Reconstruct Damaged Seismic Data, a Case Study in Jb Field, North West Java Basin
Andreas Wasi Kuncoro Kaissagara, Aji Rahmat Ginanjar, Arrie Kurniawan, Dimas Pramudito
Indonesian Petroleum Association
... trace. The expansion of the input data is 𝑓(𝑥 𝑗 ) ≈ ∑ 𝑙 ̃(𝑙)𝑒 𝑖2𝜋𝑙𝑥𝑗/𝑥 𝑚𝑎𝑥 𝑓 (Eq.1) The backward transform of the expansio...
2017
Inverse Grading Resulting from Coarse-sediment Transport Lag
Bryce M. Hand
Journal of Sedimentary Research (SEPM)
... is a "one-shot" event wherein diverse size fractions, released simultaneously from a point source, can become partially segregated because they travel...
1997
Relay Ramp Deformation and Throw Patterns Applied to Mechanics-Based Interpretations of Normal Faults: The Hat Creek Fault as a Case Example; #120155 (2014)
Simon A. Kattenhorn and Matthew W. Blakeslee
Search and Discovery.com
... tilts backward, against the direction of fault dip (Figure 1). In such cases, the change in elevation across the relay zone should be subtracted from...
2014
Cable Tool Drilling in the Appalachian Area - New Tchniques, Equipment Point to Changes in Cable Tool Field
R.B. Anderson
Appalachian Geological Society
... drillers are accused of being backward in developing better technique and equipment. Pictures of early rigs on Pennsylvania's Oil Creek look much like...
1949
Seismic Modeling and Imaging - Making Waves, by Phillip Bording and Larry Lines, #40066
Search and Discovery.com
N/A
Profiles of Wyoming Coal Mines
Gary B. Glass
Earth Science Bulletin (WGA)
..., which is driven under the freshly shot, loose coal. Arms on the duckbill then pull the coal backward onto a conveyor belt on the loader. The belt moves...
1973
Projecting Cores Into the Time Dimension
Search and Discovery.com
N/A
Reservoir Description by Interferometric Imaging of VSP Data in Transition Zones
Thomas Radford, Martin Karrenbach, Ferry Yustiana, Willi Brianno, Dhea Wachju
Indonesian Petroleum Association
... separation, and local velocity model estimation. Due to variable noise conditions each repeated shot was independently edited by having noisy gathers removed...
2013
Abstract: Salt Kinematics, Depositional Systems, and Implications for Subsalt Hydrocarbon Exploration, Eugene Island and Ship Shoal South Additions, Offshore Louisiana
Kenneth J. Thies and David J. Hall
Houston Geological Society Bulletin
... the northeast to the southwest. The overlying strata are characterized by backward-rotated hanging walls overlying listric growth-faults. We propose...
1995
Cycle Hierarchy in Middle and Upper Pennsylvanian Strata of the Mid-Continent: A Review: Abstract
W. L. Watney, E. C. Rankey, J. A. French, J. C. Youle, J. H. Doveton, G. C. Bohling, W. J. Guy
Tulsa Geological Society
... to formal stratigraphic groups, often representing major stratal changes including forward and backward stepping of the shelf margins. Corresponding...
1996
ABSTRACT: EXPLOR Expert System for Oil and Gas Prospect Generation, by R. Mark Maslyn; #91022 (1989)
Search and Discovery.com
1989