Oriented Concretions, Ionian Coast, Italy: Evidence of Groundwater Flow Direction

E. F. Mcbride , M. Dane Picard , R. L. Folk

Journal of Sedimentary Research (SEPM)

...). Deviations from spherical shapes have been explained as the result of different growth rates in different directions because of permeability anisotropy...

Fabric Shape and the Interpretation of Sedimentary Fabric Data

Douglas I. Benn

Journal of Sedimentary Research (SEPM)

... the magnetic anisotropy of deformed rocks: Tectonophysics v. 24, p. 115-131. PEREZ, F.L., AND ZHI-YONG, Y., 1988, The measurement of girdle strength...

Improved Petrological Modal Analyses from X-Ray Powder Diffraction Data by Use of the Rietveld Method. Part II. Selected Sedimentary Rocks

W. G. Mumme, G. Tsambourakis, I. C. Madsen, R. J. Hill

Journal of Sedimentary Research (SEPM)

... Crystallography, v. 14, p. 149-151. WINTER, J.W., GHOSE, S., AND OKAMURA, F.P., 1977, A high-temperature study of the thermal expansion and the anisotropy...

AAPG Rocky Mountain Section Meeting, September 16-19, 1990, Denver, Colorado, - Abstracts, #91002 (1990).

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Telluric Currents and Their Use in Petroleum Exploration

K. Vozoff , R. M. Ellis , M. D. Burke

AAPG Bulletin

... of magnetotelluric data is now theoretically possible only for simple anisotropy and for the three situations shown in Figure 12: horizontal layers...

Distribution of Upper Cenozoic Carbonate-Cemented Sandstones, Kuche Depression, Northwest China: Insights from High-Resolution Borehole Micro-Resistivity Imaging

Guangfa Zhong, Zaitian Ma, Ruilin Liu, Ningfen Wu

Journal of Sedimentary Research (SEPM)

... to permeability anisotropy. We infer that the growth of concretions in the sandstones studied herein was probably controlled by a diffusive process...

Improvements in Graphical Representation of Fabric Data, Showing the Influence of Aspect Ratios of Grains on Their Orientations

Atsushi Yamaji, Fujio Masuda

Journal of Sedimentary Research (SEPM)

... on the anisotropy in its entirety. In the map of the assemblage of large grains there are two equally prominent peaks. One is located at ρ = 0.93...

The Bend Justifies the Leans: Interpreting Recumbent Ichnofabrics

Murray K. Gingras, Kerrie L. Bann

Journal of Sedimentary Research (SEPM)

... anisotropy to sedimentary rocks (Gingras et al. 2002). Although fossil tracks, trails, and burrows have great potential as strain indicators...

Comparison of Quartz and Carbonate Shallow Marine Sandstones, Fredericksburg Cretaceous, Central Texas

C. H. Moore, Jr. , K. G. Martin

AAPG Bulletin

.... 9). 2. Grain orientation: Ten samples were analyzed for preferred grain orientation by the di-electric anisotropy method. Most of the samples...

Small-Scale Packing Heterogeneities in Porous Sedimentary Rocks

Norman R. Morrow

AAPG Bulletin

... in which the particles have appreciable internal permeability. Textural Anisotropy A possible advantage of using the irreducible saturation...

Internal Kinematics of Salt Diapirs

C. J. Talbot , M. P. A. Jackson

AAPG Bulletin

.... Figure 3). The approximate location of the bulk grain-shape anisotropy recording each of the flow regimes illustrated in Figure 9 is indicated...

Analysis of Scale Exaggeration on Seismic Profiles (1)

DONALD S. STONE

AAPG Bulletin

... velocity changes may be due to lithologic variations, to velocity anisotropy within dipping panels (e.g., Uren et al., 1990) or to variation...

Structural Trend Analysis by Axial Surface Mapping: Discussion

Donald S. Stone

AAPG Bulletin

... profiles across the producing area (Mastoris, 1989). Also, higher velocities due to ray paths near-parallel with bedding (i.e., velocity anisotropy...

A method for assessing statistical significance and uncertainties for calibration of 1-D thermal basin maturation models

S. Noeth, R. O. Thomsen, R. Littke

AAPG Bulletin

.... Because vitrinite anisotropy increases with reflection values greater than about 2.0%, these values are further verified by using the method of Ting...

The effect of methodology on volumetric uncertainty estimation in static reservoir models

Helene Beucher, Didier Renard, Brigitte Doligez, Marco Pontiggia, Giuseppe Bellentani

AAPG Bulletin

... of lithotypes is obtained by truncating two underlying GRFs, independent or not, which are characterized by their variogram structure and anisotropy...

Mechanical stratigraphy and faulting in Cretaceous carbonates

Alan P. Morris, David A. Ferrill, Ronald N. McGinnis

AAPG Bulletin

..., Maerten et al., 2006). Subseismic faults are of interest because they can impart strong fluid transmissivity anisotropy to hydrocarbon reservoirs (e.g....

Quantifying and predicting naturally fractured reservoir behavior with continuous fracture models

Creties Jenkins, Ahmed Ouenes, Abdel Zellou, Jeff Wingard

AAPG Bulletin

... property distribution from the tectonic history, but these models commonly fail to capture the complex heterogeneity and anisotropy of the fracture...

Diagenetic control of deformation mechanisms in deformation bands in a carbonate grainstone

Alexander Rath, Ulrike Exner, Cornelius Tschegg, Bernhard Grasemann, Richard Laner, Erich Draganits

AAPG Bulletin

..., doi:10.1016/j.jsg.2006.07.015.Louis, L., P. Baud, and T.-F. Wong, 2009, Microstructural inhomogeneity and mechanical anisotropy associated...

Mudstone diversity: Origin and implications for source, seal, and reservoir properties in petroleum systems

Andrew C. Aplin, Joe H. S. Macquaker

AAPG Bulletin

... migration, seal capacity, acoustic anisotropy, and identification of shale gas reservoir sweet spots are essentially unexplored. Future work should seek...

Integration of geology, rock physics, logs, and prestack seismic data for reservoir porosity estimation

Abdulaziz M. AlMuhaidib, Mrinal K. Sen, M. Nafi Toksoz

AAPG Bulletin

...), residual normal move out (NMO), NMO stretch, and anisotropy are greatest. Moreover, the small layer contrast assumption of the Aki and Richards...

Fault-related folds in the southern Pyrenees

Josep Anton Muñoz

AAPG Bulletin

... by tilted conjugated strike-slip faults and anisotropy of magnetic susceptibility data (Mochales et al., 2010; Tavani et al., 2012). THE SANT...

An approach for three-dimensional quantitative carbonate reservoir characterization in the Pampo field, Campos Basin, offshore Brazil

Danilo Jotta Ariza Ferreira, and Wagner Moreira Lupinacci

AAPG Bulletin

... and anisotropy uncertainties. Figure 1. Localization of the Pampo field (in red) of the Campos Basin, offshore Brazil. HISTORICAL CONTEXT The Campos Basin...

An approach to reduce exploration risk using spectral decomposition, prestack inversion, and seismic facies classification

Carlos Jesus, Wagner Moreira Lupinacci, Patricia Takayama, Joana Almeida, and Danilo Jotta Ariza Ferreira

AAPG Bulletin

...-to-seismic misties, the anisotropy models were updated based on well markers. Figure 2. Seismic processing workflow applied for improved seismic imaging...

High concentration methane hydrate in a silt reservoir from the deep-water Gulf of Mexico

Stephen C. Phillips, Peter B. Flemings, Melanie E. Holland, Peter J. Schultheiss, William F. Waite, Junbong Jang, Ethan G. Petrou, and Helen Hammon

AAPG Bulletin

..., P. J. Polito, M. B. Cronin, and S. L. Bryant, 2015a, Anisotropy and stress dependence of permeability in the Barnett Shale: Transport in Porous Media...

Variations in vertical stress in the Permian Basin region

Katie M. Smye, Peter H. Hennings, and Elizabeth A. Horne

AAPG Bulletin

... and Shmin are determined easily from observations of deformation in the wellbore wall as obtained from electric and sonic image logs, velocity anisotropy...