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The AAPG/Datapages Combined Publications Database

Showing 446 Results. Searched 200,357 documents.

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High-Accuracy Aeromagnetic Surveys for Deciphering the Structure of the North Near-Urals

V. G. Mavrichev, D. A. Saar

Petroleum Geology: A Digest of Russian Literature

...; 7-main block boundaries; stages of regional movements, phases: 8-initial impulse, 9-regional movements; stages of trans-regional movements, phases...

1993

A Shaking Table for Experiments on Soft-sediment Deformation: RESEARCH METHOD PAPER

G. Owen

Journal of Sedimentary Research (SEPM)

... several times or allowing the pendulum to come to rest against the table. The pendulum impulse controls the maximum velocity of the table: for a swing...

1992

Time-Temperature Relation in Oil Genesis: REPLY

Jacques Connan

AAPG Bulletin

... of the present geothermal gradient. Lopatin (1971) and Lopatin and Bostick (1973) have gone one step further while introducing the sum-heat-impulse (SHI...

1976

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

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

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