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The AAPG/Datapages Combined Publications Database

Showing 447 Results. Searched 200,691 documents.

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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

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

Proglacial Fluvial and Lacustrine Environments

Michael Church, Robert Gilbert

Special Publications of SEPM

... behavior of proglacial rivers f e a t ~ ~ r frequent upper regime flow and rapid adj~lstinent channel resistance to accommodate the wide es...

1975

Influence of Relative Sea-Level Change and Tidal-Inlet Development on Barrier-Spit Stratigraphy, Sandy Neck, Massachusetts

Sytze Van Heteren , Orson Van de Plassche

Journal of Sedimentary Research (SEPM)

... by impulse radar: Engineering Foundations Conference on Subsurface Explorations for Underground Excavation and Heavy Construction, Henniker, New...

1997

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

Debt of Geology to the Petroleum Industry

E. DeGolyer

AAPG Bulletin

... industry has served the science in many ways. It has given a considerable impulse to the study of geology in the schools and universities. It has...

1921

Viking Deposition: DISCUSSION

Floyd K. Beach

CSPG Bulletin

... impulse if on shore? Would not a faulting uplift on shore of the order of 10 feet initiate a violent tsunami in a shallow sea? We have no "time machine...

1962

Characteristics of Extraction of Oil from Stratum DI of the Bavly Field

A. M. Zinatullina, I. G. Poluyan

Petroleum Geology: A Digest of Russian Literature

... the neutron-gamma method and in 1962 using neutron-neutron impulse logging it was possible to subdivide the stratum according to the character...

1963

Imaging of Shallow Coal Structures Using 2D6C Mini-SOSIE

Shaun Strong, James Alderman, Steve Hearn

Petroleum Exploration Society of Australia (PESA)

... Geophysics, 10, 156-163. Layotte, P., 1983, Marthor: an S-wave impulse source: SEG Technical Program Expanded Abstracts 1983, 418-421. White, J., S. Heaps...

2016

Prestack Depth Imaging Within the Makassar Straits, Eastern Kalimantan, Indonesia

Chris Willacy, Suryadi Oemar, A. Edy Hermantoro, Paul Gilleran

Indonesian Petroleum Association

... information for migration purposes. The Kirchhoff migration method is essentially the summation of a series of impulse responses which overlap in space...

2000

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