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The AAPG/Datapages Combined Publications Database

Showing 402 Results. Searched 195,354 documents.

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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

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

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

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

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

Pseudo 3D Seismic Generation From Multi-Vintage 2D and 3D Seismic Data for Hydrocarbon Exploration at Eastern Indonesia Basin

Agus Abdullah, Syaiful Basyuni

Indonesian Petroleum Association

... the amplitude values extrapolation brought by migration impulse response with specific velocity value, dip, aperture, and guided by seismic horizon. Figure 6...

2022

Oil-Gas Distribution and Prospects of the Supra-Salt Sediments of Orenburg Region

G. V. Leonov, V. S. Dubinin

Petroleum Geology: A Digest of Russian Literature

... by a drop in pressure in a fault zone, where density is decreased by 5-7 percent as a result of the fracturing. The initial impulse of flow of salt...

1995

Abstract: Carbonate Fracture Case History from Russia and Implications for HTD Plays in North America; #90172 (2014)

Inga Khromova, Brian Link

Search and Discovery.com

... propagation. This type of migration may be compared a with conventional migration with it’s impulse response rotated by 900. DWM uses the same input data...

2014

Abstract: Rank-Reduction-Based Trace Interpolation; #90172 (2014)

Stewart Trickett, Lynn Burroughs, Andrew Milton, Larry Walton, Rob Dack

Search and Discovery.com

... midpoint Offset Azimuth Otherwise one gets poor cancelation of overlapping migration impulse responses, resulting in migration artifacts (Gardner...

2014

Abstracts: Accurate Declipping Hybrid Algorithm for Ground Penetrating Radar Data; #90173 (2015)

Akshay Gulati and R. J. Ferguson

Search and Discovery.com

... for the targeted subsurface form a synthetic aperture, whose impulse response is a spatially variant curve in the space-time domain. A common set up for GPR...

2015

Abstracts: Application of Fractional Fourier Transform in Cepstrum Analysis; #90173 (2015)

K. H. Miah, R. H. Herrera, M. van der Baan, and M. D. Sacchi

Search and Discovery.com

... cepstrum with different fractional orders of the FRFT. Introduction Seismograms are often considered to be the convolution of the impulse response...

2015

3D Acoustic and Elastic Wave Modeling on a High Performance Computing System, #40899 (2012)

Suhas Phadke, M. Ramanjulu

Search and Discovery.com

... today. The basic problem in theoretical seismology is to determine the wave response of a given model to the excitation of an impulse source...

2012

Lacustrine Shale Gas Exploration in Yanchang Exploratory Block, China; #10510 (2013)

Xiangzeng Wang, Lixia Zhang, Chengfu Jiang, Binghua Sun, Chao Gao, Bojiang Fan, Chao Guo, Yongping Wan, Jianbo Sun, and H. Hu

Search and Discovery.com

... collected from sandy interlayer, sandy shale and sheer shale, were measured using the impulse method. The result shows that, the porosity and permeability...

2013

The Use of Multiple Hypotheses as a Risk Mitigant Get A Second (Or Third) Opinion! Using Multiple Hypotheses, #70408 (2020).

Peter Cockcroft

Search and Discovery.com

... as reading some of these opposing views. Regardless, it's important to evaluate the information as rationally as possible and avoid one's impulse...

2020

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