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The AAPG/Datapages Combined Publications Database
Showing 447 Results. Searched 200,663 documents.
Using Steerable Filters to Map Geological Features from HRAM Data of the Foothills of Northeastern British Columbia, Canada
Hassan H. Hassan
Search and Discovery.com
... steerable filters (Fig. 1). In this scheme an impulse function hșa (x,y) rotated by an arbitrary angle șa was formulated as a linear combination...
Unknown
Abstract: Ground Roll Attenuation via SVD and Adaptive Subtraction; #90171 (2013)
Peter Cary and Changjun Zhang
Search and Discovery.com
... roll but they can have limited success because of irregular trace spacing and data aliasing. They also can generate artifacts due to spatial impulse...
2013
Abstract: Kaizen Approach Leading to Success in North Sea Turbidites: Constant Revision of a Geological Model; #90171 (2013)
Jean-Yves Chatellier and Jackie Banner
Search and Discovery.com
... that revitalized the exploration impulse in some of the areas. Thus in the Guillemot D area, well 21/30-1 encountered only 3 meters of oil in the Rogaland...
2013
Using Steerable Filters to Map Geological Features from HRAM Data of the Foothills of Northeastern British Columbia, Canada
Hassan H. Hassan
Search and Discovery.com
... steerable filters (Fig. 1). In this scheme an impulse function hșa (x,y) rotated by an arbitrary angle șa was formulated as a linear combination...
Unknown
Abstract: Ground Roll Attenuation via SVD and Adaptive Subtraction; #90171 (2013)
Peter Cary and Changjun Zhang
Search and Discovery.com
... roll but they can have limited success because of irregular trace spacing and data aliasing. They also can generate artifacts due to spatial impulse...
2013
Abstract: Kaizen Approach Leading to Success in North Sea Turbidites: Constant Revision of a Geological Model; #90171 (2013)
Jean-Yves Chatellier and Jackie Banner
Search and Discovery.com
... that revitalized the exploration impulse in some of the areas. Thus in the Guillemot D area, well 21/30-1 encountered only 3 meters of oil in the Rogaland...
2013
Abstract: Monte Carlo Markov Chain Methods in Seismic Deconvolution; #90174 (2014)
Andres Medina and Mirko van der Baan
Search and Discovery.com
... of one element (Markov property). Theory and/or Method The Earth’s impulse response to the wavelet acts as a filter and is mathematically expressed...
2014
Abstracts: The Evolving Role of Geophysics in Exploration: From Amplitudes to Geomechanics; #90173 (2015)
Eric Andersen, David Gray
Search and Discovery.com
... of the time required for a seismic impulse to travel to and through a reservoir. It also gives us some understanding of the amplitude we should...
2015
Modeling Hydro-Isostasy: Isostatic Flexure Along the Global Coastlines Due to Sea-Level Rise and Fall
Eric W. Hutton and James P.M. Syvitski
Search and Discovery.com
...-width of the impulse function, xbar is x/alpha or distance/flexural parameter, w = deflection The change in shelf gradient is a function...
Unknown
Correlating Versus Inverting Vibroseis Records: Recovering What You Put into the Ground; #41577 (2015)
Glen Larsen, Paul Hewitt, Art Siewert
Search and Discovery.com
...(t) = s(t) * w(t) * e(t) Equation 1 where x(t) is the recorded trace, s(t) is the sweep, w(t) is the seismic wavelet, and e(t) is the earth’s impulse...
2015
Proglacial Fluvial and Lacustrine Environments
Michael Church, Robert Gilbert
Special Publications of SEPM
... .* * . . . '.* . * . *.* .* /' t* ......... . Air Tem . Wafer Temperofure ***. *.. . Gauge Weight..: e* .......... 2" :*. :1ULf ."r,:~::ar.*. **.=**. - 9...
1975
Structural Analysis Using Spatial Filtering in Interior Plains of South-Central Alberta
J. E. Robinson , H. A. K. Charlesworth , M. J. Ellis
AAPG Bulletin
... The relations among input, filter, and output in the distance domain can be described by means of the concept of the unit impulse or spike. The output...
1969
Deconvolution of upgoing and downgoing wavefields: A data example from the NOAKA OBN experiment
Tim Seher, Hassan Masoomzadeh, Yong Ren, Simon Baldock, Bin Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
... impulse response X at the seafloor is related to the upgoing wavefield U and downgoing wavefield D (Lokshtanov, 2005): 𝑋 = 𝑈𝐷∗ ⁄(𝐷𝐷∗ + 𝜀 2 ) . (1...
2022
DMO and NMO as Applied in Seismic Data Processing
Jiunnyih Chen
Geological Society of Malaysia (GSM)
... migration, what should be the impulse response ofthis spike before migration? A simple way to get the answer is but to inversely migrate the ellipsoid...
1989
A New Cement and Casing Evaluation Tool – The CET
M. H. Jennings
Indonesian Petroleum Association
... of the casing. A pictorial depiction of the response model is given in figure 1. For simplicity we assume the signal to be a unit impulse with only...
1984
Accelerated Kirchhoff depth migration on CPU-GPU heterogeneous computing systems
Yujin Liu, Hongwei Liu, Yi He, Fuhao Qin, Yue Du
International Meeting for Applied Geoscience and Energy (IMAGE)
... to the traveltime information The above single-trace migration workflow is illustrated in Figure 2. The output of the workflow is the migration impulse...
2022
New Seismic Method in Populated Areas (A Case Study in the Surabaya Area, East Java, Indonesia)
Suyitno Patmosukismo, A. Syahbuddin, G. Alameda
Indonesian Petroleum Association
... and in the case of conventional emission. Figure 4. Principle of the Sosie Process The notations are the following: S(t): Signal emitted by an elementar impulse...
1985
Angle-constrained VSP least-squares reverse-time migration based on a high-efficiency stabilized Poynting vector
Xuan Ke, Mauricio Sacchi, Ying Shi
International Meeting for Applied Geoscience and Energy (IMAGE)
... employing the elliptical formula to simulate the impulse response of RTM with multi-shot gathers. As illustrated in Figure 2a, we maintain the s...
2023
Specialized processing of a massive distributed acoustic sensing (DAS) 3D VSP in a producing well
Ali Sayed, Francesca Twynam, Ran Bachrach, Philippe Caprioli, Marcus Holloway, Qingsong Li, Reetam Biswas, Daniel Tebo, Sam Buist
International Meeting for Applied Geoscience and Energy (IMAGE)
... by applying infinite impulse response velocity filters (Gustafsson, 1996). This suppression was applied to frequencies above 60 Hz to protect the signal...
2023
Observations of geophone spurious resonance
Steve Hearn, Shaun Strong, Andrew Kinmont
Petroleum Exploration Society of Australia (PESA)
..., with the resonance amplitude increasing, and resonance frequency dropping slightly (~183 Hz) for a tilt of 12°. Tap tests provide a relatively robust impulse...
2019
Sedimentology, Geochemistry, and Mechanical Stratigraphy of an Early Kimmeridgian Carbonate Mudstone in an Arabian Intrashelf Basin
Septriandi A. Chan, John Humphrey, Baqer Albensaad, Muhammad Usman, Khalid Alramadan, Yaser Alzayer
Unconventional Resources Technology Conference (URTEC)
...), log-based methods (Young’s modulus (E*), Poisson’s ratio, and UCS), and automated scanning (impulse-hammer and ultrasonic wave velocities...
2022
Seismic Stratigraphic Model of Depositional Platform Margin, Eastern Anadarko Basin, Oklahoma: Section 3. Stratigraphic Models from Seismic Data
William E. Galloway , Marshall S. Yancey , Arthur P. Whipple
AAPG Special Volumes
.... The impulse-response plot displays the distribution, polarity, and strength of reflecting interfaces in the vertical time domain. Filtering...
1977
Anisotropy Kinematics Clarified through Regime Rrays Model
William J. Vetter
Search and Discovery.com
...“ in the conventional ray theory sense are involved in wavefront progression when triggered by idealized impulse excitation at a point source in an anisotropic...
Unknown
Anisotropy Kinematics Clarified through Regime Rrays Model
William J. Vetter
Search and Discovery.com
...“ in the conventional ray theory sense are involved in wavefront progression when triggered by idealized impulse excitation at a point source in an anisotropic...
Unknown
SEISMOLOGICAL STUDY OF THE CARACAS EARTHQUAKE OF 15 APRIL, 1960 AND PROBLEMS OF EARTHQUAKE PREDICTION
Günther Fiedler
Asociación Venezolana de Geología, Minería y Petróleo (AVGMP)
...l coordinates and obtain the tangents of the azimuth by the formula: We find in the record of the vertical seismograph whether the first impuls...
1960