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The AAPG/Datapages Combined Publications Database

Showing 5,195 Results. Searched 200,599 documents.

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Depositional Mechanics of Thick-Bedded Sandstones at the Base of A Submarine Slope, Tourelle Formation (Lower Ordovician), Quebec, Canada

Richard N. Hiscott, Gerard V. Middleton

Special Publications of SEPM

... orientation and indurated blocks of shale i types imbrication massive sandstones with poor or inverse to normal of these lack flutes and internal...

1979

Petrophysical Interpretation of Multi-Frequency Electromagnetic Measurements in Clay- and Conductive-Mineral-Rich Mudrocks

Siddharth Misra, Yifu Han

Unconventional Resources Technology Conference (URTEC)

...-Frequency Conductivity-Permittivity Inversion. The non-linear inverse problem discussed in this section involves estimation of petrophysical parameters...

2016

Is There Value in Reprocessing Legacy Marine Streamer Seismic for Improved Resolution? A Recent Example from Indonesia

Dmitri Skorinski, Ted Manning

Indonesian Petroleum Association

... on the stack that is dominated by the stronger frequencies below 100Hz, but it could be boosted by later inverse Q amplitude compensation. Since most...

2014

Diffusion regularization for multi-parameter near-surface elastic full-waveform inversion

Mohammad Hasyim Taufik, Fu Wang, Tariq Alkhalifah

International Meeting for Applied Geoscience and Energy (IMAGE)

... linear inverse problems. Kamilov et al. (2017) later extended this idea to work on nonlinear imaging problems. In this work, we promote using a recent...

2024

Facies-constrained elastic full-waveform inversion for tilted orthorhombic media

Ashish Kumar, Ilya Tsvankin

International Meeting for Applied Geoscience and Energy (IMAGE)

... of the inverse problem and increase the spatial resolution of the obtained parameters. Most existing applications of elastic FWI to orthorhombic media...

2024

Time-lapse full-waveform inversion by model order reduction using radial basis function

Haipeng Li, Robert G. Clapp

International Meeting for Applied Geoscience and Energy (IMAGE)

... associated with hydrocarbon production (Hicks et al., 2016) and CO2 injection (Egorov et al., 2017). Nonetheless, FWI is a high-dimensional inverse...

2024

Simultaneous imaging of basement relief and varying susceptibility in deep-learning approach

Zhuo Liu, Yaoguo Li

International Meeting for Applied Geoscience and Energy (IMAGE)

... in the basement rock from one set of total-field anomaly data. As we use deep learning for an inverse problem, we adopt terms from the machine-learning studies...

2024

Porosity Calibration of Modern Porosity Logs and Old Neutron Logs, Mabee Field, Andrews and Martin Counties, Texas

Dennis W. Dull

West Texas Geological Society

... The log porosities were transformed to core porosity by using the slope and y-intercept for the contoured values and applying that transform...

1992

Kriging-based surrogate models for convergence acceleration of Markov chains: An example of magnetotellurics-dix joint inversion

Alejandro Quiaro, Mauricio D. Sacchi

International Meeting for Applied Geoscience and Energy (IMAGE)

...-probability model could be an estimator of one solution to our inverse problem. The posterior probability is proportional to the right-hand side...

2024

Stable Isotope Applications in Petroleum Exploration by Geochemical Soil Gas Analyses

Don Rigby

Petroleum Exploration Society of Australia (PESA)

... pore gas are compared to the soil inverse correlation between the isotopic two samples at each end of the survey probe survey data in Figure 4...

1991

Full-waveform inversion from a homogeneous starting model: A field dataset study

Zeyu Zhao, Brook Tozer, Mrinal K. Sen

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Lailly, P., 1983, The seismic inverse problem as a sequence of before stack migrations: Conference on Inverse Scattering, Theory and application...

2024

Assessing the region of ambiguity of potential fields to improve surveying and modelling

Luigi Bianco, Maurizio Fedi, Maurizio Milano

International Meeting for Applied Geoscience and Energy (IMAGE)

... for the sources for gravity or magnetic case. Due to the Green's third identity, the inverse problem has inherently ambiguous solutions (Blakely, 1996) since...

2024

Optimization of Variograms used for Truncated Plurigaussian Simulation

Samaneh Sadeghi, Jeff B. Boisvert

CSPG Bulletin

... to the experimental variograms is very difficult. The method of Kyriakidis et al. (1999) can transform calculated indicator variograms to normal scores variograms...

2015

Refined Karst Feature and Fault Identification Through Integrated Wave Field Separation and Imaging of Diffraction Energy

Riaz Alai, Afiq Mokhtar, Christopher Lee Slind, Yonghe Guo, Rizki Krishna Pratama

Indonesian Petroleum Association

... imaging and the many advantages. Inverse Scattering Series (ISS) internal multiple predictions (Weglein et al., 1997 and Wang and Hung, 2014...

2021

An Analysis of the Implicit Assumptions of the Methodology of Seismic Sequence Stratigraphy: Chapter 21: Sea-Level and Seismic Stratigraphic Studies

Julian A. Thorne

AAPG Special Volumes

.... These assumptions are divided into four groups: (1) seismic stratal geometry identification, (2) the depositional sequence model, (3) the inverse model...

1992

Fracture Basement Imaging, Identification, and Characterization Through Separated Wave Field Processing Strategies - A Case Study From Offshore Indonesia

Riaz Alai, Afiq Mokhtar, Yonghe Guo, Hendra Iriansyah Darmawan, M Hilman B Roslan

Indonesian Petroleum Association

... was important to ensure minimal interference with basement fracture energy. Therefore, Inverse Scattering Series (ISS) interbed multiple prediction...

2022

Fluorescent Tracer Particle Determination of the Size-Velocity Relation for Foreshore Sediment Transport, Sandy Hook, New Jersey: NOTES

Warren E. Yasso

Journal of Sedimentary Research (SEPM)

..., for these two size classes both first arrival and converted peak arrival data indicate an inverse size-velocity relationship prevails in beach drift...

1965

A Technology to Extract Lithology, Porosity and Hydrocarbon Content from Conventional Seismic Data

Roger A. Young

GCAGS Transactions

..., porosity and fluids) to seismic. The forward modeling problem (rocks to seismic) must first be understood before the inverse problem (seismic to rocks) can...

1999

Production Sweet Spots of Eight US Shale Plays Constrained by Data Analytics of Normalized Production Index, Payzone Depth, and Initial GOR

Rasoul Sorkhabi, Palash Panja, Milind Deo

Unconventional Resources Technology Conference (URTEC)

.... Our analysis also finds an inverse relationship between NPI and increasing values of initial (first month) GORs. Although each shale play has its...

2023

Friction Factor Assessment for Plug and Perf Drill-Out in Marcellus Wells

Juan Martinez, Oliver Floyd, Chris Holland, Dinh Ngoc Tran

Unconventional Resources Technology Conference (URTEC)

... required torque and FF will be inverse). The identified parameters associated with the phenomenon which change from well to well are: • • • Well...

2024

Relationships Among Insoluble Residue, Dolostone and Limestone Facies

David N. Lumsden

Journal of Sedimentary Research (SEPM)

... of less than 50% and the carbonate fraction contains 10-90% dolomite and calcite in inverse proportions. Presumably these are partially replaced samples...

1974

Extended Abstract: Gulf Coast Deep-Seated Subsidence Rate Dynamics, Bias, and Spatial-Temporal Depocenter Complexities

Bruce C. Frederick, Mike D. Blum, Harry H. Roberts, Richard H. Fillon

GCAGS Transactions

...), an example of the inverse relationship between rates of geologic processes and the timescale of measurement similar to those first identified in stratigraphic...

2019

Introduction to Contouring Geological Data with a Computer: Part 8. Integrated Computer Methods

J. L. Gevirtz

AAPG Special Volumes

...------------------------ schemes. The most commonly encountered scheme used for geological data is inverse distance weighting. For this scheme, values at control...

1992

Inferred Paleosalinity and Phosphate Content of Carbonate Rocks from a Cyclic Evaporite-Carbonate Rock Sequence

Der-Duen Sheu , Burke Burkart

Journal of Sedimentary Research (SEPM)

... characterized by cyclic carbonate rock alternating with anhydrite. Phosphate content of limestone was found to have an inverse relationship to inferred salinity...

1982

Abstract: Anisotropic Moment Tensor Inversion and Visualization Applied to a Dual Well Monitoring Survey; #90224 (2015)

Scott Leaney, Xin Yu, Chris Chapman, Les Bennett, Shawn Maxwell, Jim Rutledge, and John Duhault

Search and Discovery.com

...x-vector of moment tensor terms using the generalized inverse, , computed using an SVD routine. The previously given form of is assumed, parameterized by th...

2015

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