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The AAPG/Datapages Combined Publications Database

Showing 5,194 Results. Searched 200,693 documents.

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Primary Phosphatic Oolites from the Lower Cambrian of Spitsbergen

Keene Swett, R. Keith Crowder

Journal of Sedimentary Research (SEPM)

... inverse proportionality of the thickness of the phosphatic coatings to the detrital grain size suggests an energy/mass control of the phosphatic...

1982

Tidal Inlets

Thomas F. Moslow

AAPG Special Volumes

... Characteristics Variations in the Sedimentary characteristics of tidal inlet deposits is primarily a function of the inverse relationship between wave height...

1984

IV. The Role of Seismic Wavelets and Wavelet Processing

Norman S. Neidell

AAPG Special Volumes

.... Although both deconvolution and wavelet processing employ the mathematics of Wiener filters, wavelet processing seeks to work in the frequency band...

1979

Climatic and tectonic controls of lacustrine hyperpycnite origination in the Late Triassic Ordos Basin, central China: Implications for unconventional petroleum development: Reply

Renchao Yang, Zhijun Jin, A. J. Tom van Loon, Zuozhen Han, and Aiping Fan

AAPG Bulletin

... and falling discharge of a flooding river in terms of sediment size, with inverse grading to normal grading in ascending order.” It is commonly...

2019

Abstract: Push the Limits of Seismic Resolution Using Surface Consistent Gabor Deconvolution; #90171 (2013)

Xinxiang Li and Darren P. Schmidt

Search and Discovery.com

... for simplicity. Equations of the form (3) for all available traces construct a classic linear inverse problem (Wiggins et al, 1976) that can be solved using...

2013

Abstract: Fast and Accurate Impedance Inversion by Well-Log Calibration; #90171 (2013)

Igor B. Morozov and Jinfeng Ma

Search and Discovery.com

... inversion methods. In the absence of a true inverse, a unique and reliable solution can be obtained by defining a set of physical constraints that should...

2013

Abstract: Time-varying Wavelet Estimation and Deconvolution; #90171 (2013)

Mirko van der Baan

Search and Discovery.com

... as a data-driven alternative to amplitude-only inverse-Q deconvolution. Introduction Controlled-phase acquisition and processing plays an important...

2013

Abstract: Two-stage Blind Deconvolution; #90187 (2014)

Mafijul Islam Bhuiyan and Mauricio D. Sacchi

Search and Discovery.com

...- thresholding algorithm for linear inverse problem: SIAM J. Imaging Sciences, Vol.2, PP. 183–202. Canadas, G., 2002, A mathematical framework for blind...

2014

Abstract: 5D Interpolation and Regular Upsampling: Ill-suited or Fit-for-purpose?; #90187 (2014)

Mike J. Perz and Peter W. Cary

Search and Discovery.com

... factors are examined below. (i) MWNI assumption inconsistency The MWNI algorithm revolves around a certain inverse problem. In plain words, this inverse...

2014

Abstracts: FX Cadzow / SSA Random Noise Filter: Frequency Extension; #90173 (2015)

Alexander Falkovskiy, Elvis Floreani, Gerry Schlosser

Search and Discovery.com

... entries of the same inverse Fourier transform returns the filtered traces. Instead of composing these extended matrices only over space dimensions...

2015

Abstract: Deterministic Marine Deghosting: Tutorial and Recent Advances; #90224 (2015)

Mike J. Perz and Hassan Masoomzadeh

Search and Discovery.com

... deconvolution algorithm of Robinson (1957), and the second of these is a deterministic approach which entails computation of the analytic inverse...

2015

Shallow Conduit Behavior of Silicic Magma Chambers: A Detailed Thermal Model; #40949 (2012)

Cathina Gunn de Rosas and Glen Mattioli

Search and Discovery.com

... will examine the seismic signatures of volcanic events as a key inverse modeling constraint. One of the most interesting aspects of this shallow thermal...

2012

The Application of Poisson Impedance Inversion for Sandstone Reservoir Characterization in the Lower Talang Akar Formation, Case Study Melandong-West Java, #41080 (2012)

Angga Direzza, I Komang Andika Aris Permana

Search and Discovery.com

... impedance and can be shown as PI =AI – cSI, where “c” is rotation parameter of impedances data or inverse of crossplot trending lithology and fluid...

2012

3D Inversion of Time-Domain Electromagnetic Data for Ground Water Aquifers, #41610 (2015).

Elliot M. Holtham, Mike McMillan, Eldad Haber

Search and Discovery.com

.... Solving the forward problem repeatedly on such a mesh can quickly become impractical. Fortunately, using a single mesh for both the forward and inverse...

2015

Sequence Stratigraphic Boundary Delineation Based on Adaptive Seismic Decomposition, #42067 (2017).

Fangyu Li, Rui Zhai, Jie Qi, Bo Zhang, Kurt J. Marfurt

Search and Discovery.com

... components. In the synthetic examples, we build four deposition cycle models: normal, inverse, inverse-normal, and normal-inverse models. The first...

2017

Multiple Scenarios from Diverse Thermal Indicators: Contrasting Organic- Versus Mineral-Based Methods for a Frontier Intracratonic Basin in the Canadian Arctic, #11164 (2018).

Denis Lavoie, Omid Haeri Ardakani, Nicolas Pinet, Julito Reyes and Ryan Dhillon

Search and Discovery.com

... shales are immature (Tmax below 435°C and average Rvit-eq of 0.44%). Inverse modeling of apatite fission tracks data from basal Upper Ordovician...

2018

Resedimented Conglomerates of a Miocene Fan-Delta Complex, Southern Alps, Italy

Francesco Massari

CSPG Special Publications

... of ‘traction’ sedimentation. Proximal-to-distal changes include increasing sand matrix content and development of inverse and normal grading in pebble...

1984

Perspectives on Stratigraphic Simulation Models: Current Approaches and Future Opportunities

W.Lynn Watney, Eugene C. Rankey, John Harbaugh

Special Publications of SEPM

... approaches to both inverse and forward stratigraphic computer modeling 2 defining trends and promising areas of research and 3 discussing in detail input...

1999

Parsimonious Deconvolution

Jon F. Claerbout

Southeast Asia Petroleum Exploration Society (SEAPEX)

... high frequency noise. Varimax deconvolution decreases the noise. More realistic estimated filters bτ and further noise reduction can be achieved...

1980

Moment tensor inversion of perforation shots using distributed acoustic sensing

Milad Bader, Robert G. Clapp, Biondo Biondi

International Meeting for Applied Geoscience and Energy (IMAGE)

... and M33 . If the time function w is known, we can determine the time-independent MT components by solving a linear inverse problem of the form β d = Gβ...

2022

The many faces of rock physics

Ludmila Adam

International Meeting for Applied Geoscience and Energy (IMAGE)

... of the planet Mars. Geophysical data are used to indirectly probe the physical properties of rocks and the fluids within. Solving this inverse problem requires...

2022

Q-compensation imaging of anisotropic viscous quasi-acoustic media along wavefield propagation path

Bohan Zhang, Huazhong Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... migration. attenuation Q, yielding wavefield P2 . The ratio of P P2 1 Inverse Q PSDM Source wavefield extrapolation can be expressed according...

2022

Estimation of TOC Using GR & Rt Well Logs

Kenneth A. Heslop

West Texas Geological Society

... layer. The two most common and reliable log curves are the Gamma Ray (GR) and Resistivity (Rt). Experience has shown there is an inverse relationship...

2010

Numerical Methods for Mineral Estimation from Well Logs

John H. Doveton

Special Publications of SEPM

... V, are solved by: v = c-'L where C-1 is the inverse of the C-matrix. When coded in a computer program, this little algorithm solves the problem...

1994

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