On the Use of the Term "Amplitude" in Ripple Mark Description: NOTES

Supriya Sen Gupta

Journal of Sedimentary Research (SEPM)

... on the characteristics of simple harmonic motion graphically represented in figure 2. It is clear from this definition of "amplitude" that by measuring...

Effects of Tropical Weathering on Quartz Grain Shape: an Example from Northeastern Australia

Kenneth Pye , Jim Mazzullo

Journal of Sedimentary Research (SEPM)

... is partitioned into a series of 23 standard shape components (harmonics). Each harmonic is a closed form with n evenly spaced nodes, where n is the harmonic...

Compensating for the Compensation Effect Using Simulated and Experimental Kinetics From the Bakken and Red River Formations, Williston Basin, North Dakota

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Value Map Methodology for Appraising "Settled" Producing Oil Properties and Royalties

Sidney Moran

Tulsa Geological Society

... day of production and average slightly over two barrels per day per well. Most of these wells have long production histories. Future production can...

Estimated Stored Heat in the Clarence-Moreton Basin, New South Wales: A Case Study in Reducing Uncertainties in Thermal Modelling

M. W. Haynes

Petroleum Exploration Society of Australia (PESA)

.... Where possible, the thermal conductivity of each sample was determined from the harmonic mean of three individual measurements. Samples were...

Permeability and flow impact of faults and deformation bands in high-porosity sand reservoirs: Southeast Basin, France, analog

Elodie Saillet, Christopher A. J. Wibberley

AAPG Bulletin

... to CDBs is approximately five to six orders of magnitude, although the average reduction is only two to three orders (Taylor and Pollard, 2000; Fossen...

Uncertainty in well test and core permeability analysis: a case study in fluvial channel reservoirs, northern North Sea, Norway

Shi-Yi Zheng, Patrick W. M. Corbett, Alf Ryseth, George Stewart

AAPG Bulletin

... average, where the exponent p can range between 1 (arithmetic average) and -1 (harmonic average). Statistically, the exponent p (i.e., kp) should lie...

Theory of Rock Movement on Scree Slopes

Adrian E. Scheidegger

CSPG Bulletin

... will be where is the linear thermal expansion of the material. Thus Hence we have This represents the average increase in surface displacement if one...

Modeling Heterogeneity in a Low-Permeability Gas Reservoir Using Geostatistical Techniques, Hyde Field, Southern North Sea

M. L. Sweet , C. J. Blewden , A. M. Carter , C. A. Mills

AAPG Bulletin

.... In the case of muddy sabkha facies, the assigned values were the simple arithmetic average and harmonic average of permeability for horizontal and vertical...

Abstract: An Experiment to Detect Nonlinear Seismic Responses on Exploration/Monitoring Scale; #90187 (2014)

Kris Innanen, Gary Margrave, and Malcolm Bertram

Search and Discovery.com

..., and this is an issue of ongoing research. Whether the average discrepancy constitutes a true anomaly is therefore uncertain. However, we point to peaks...

Experiment on Estimating Thermal Conductivity of Sedimentary Rocks from Oil Well Logging: GEOLOGIC NOTE

Victor Vacquier , Yves Mathieu , Eric Legendre , E. Blondin

AAPG Bulletin

... conductivities of the core samples were 0.81, 0.75, and 0.61, respectively, for the three lithologic groups. The average percent difference between the measured...

Scanning Electron Micrographs of Quartz Sand Grains from Cold Environments Examined Using Fourier Shape Analysis

Julian A. Dowdeswell

Journal of Sedimentary Research (SEPM)

... and subaerial weathering in cold environments. Mean harmonic amplitude spectra and roughness coefficients are calculated, and three problems are investigated...

Evaluation of the Rock Properties in Structurally Deformed Areas Based on Outcrop Analogues for Offshore Fields in Azerbaijan, #51461 (2018).

Shahriyar Alkhasli, Gasham Zeynalov, Aydin Shahtakhtinskiy

Search and Discovery.com

.... Figure 17. Estimated (harmonic average technique) permeability of the deformation band vs. its host rock. Bubbles sized by XRD-derived clay content...

Effect of Faulting on Fluid Flow in Porous Sandstones: Petrophysical Properties

Marco Antonellini, Atilla Aydin

AAPG Bulletin

... of a harmonic mean average to correct the measurements. The best match between permeability in zones 1 cm thick and in zones less than 1 cm thick was obtained...

Abstract: A study of Spectral Broadening Methods for Multicomponent Data; #90174 (2014)

Chuck Ursenbach, Peter Cary, and Mike Perz

Search and Discovery.com

... a clear physical meaning. We show in Appendix B that a useful definition of iPS for discussion of resolution is the harmonic average (1) 1 / iPS ≡ ( 1...

Analysis of Fluid and Heat Regimes in Sedimentary Basins: Techniques for Use with Large Data Bases

S. Bachu, C. M. Sauveplane, A. T. Lytviak, Brian Hitchon

AAPG Bulletin

... previously by Jones and Johnson (1983), for the Swan Hills area of Alberta, which consists of a sedimentary block of 38,300 km3 with an average thickness...

Statistical Time-Series Analysis and Sedimentological Tuning of Bedding Rhythms in a Triassic Basinal Succession (Southern Alps, Italy)

Florian Maurer, Linda Hinnov, Wolfgang Schlager

Special Publications of SEPM

... in both the laminated and the bioturbated facies. Because of the average 25° dip of strata, the bed thickness in Harmonic F-Test.— the core is approximately...

Analysis of Rock Properties

Mike Shepherd

AAPG Special Volumes

..., have been known to show these patterns (Wilson, 1977; Neilson et al., 1998).FIGURE 78. The depth map and average porosity map show similar trends...

Rate of Reflux Dolomitization Based on Hydrodynamic Modeling of a Glen Rose Dolostone, Austin, Texas

Shawn M. Fullmer, F. Jerry Lucia

GCAGS Transactions

... dolostone samples were collected and analyzed for oxygen and carbon isotopes. For calcite from limestone, the average δ18O is -1.8‰ (per mille...

The Geometry and Thickness of Deformation-band Fault Core and its Influence on Sealing Characteristics of Deformation-band Fault Zones

Z. K. Shipton, J. P. Evans, L. B. Thompson

AAPG Special Volumes

... grid blocks have the same host rock and fault zone permeabilities, the area-weighted harmonic average of fault zone thickness (tf) can be used...

Abstract: The Eruption of Mount St. Helens

Allen J. Fiksdal

GCAGS Transactions

... (including harmonic tremors), steam and gas venting, dome formation, periodic major eruptions, and pyroclastic flows keep residents, officials...

Abstract: Non-Linear Effects in Reservoirs: Are We Missing Something?

Bruce M Hartley

Petroleum Exploration Society of Australia (PESA)

... are small. Linear laws lead to simple equations that can be solved by simple harmonic motions, and therefore predictable behavior. All materials...

The Effect of Hydrofluoric Acid on Quartz Shape--Fourier Grain Shape Analysis: METHOD PAPER

Douglas J. Schultz

Journal of Sedimentary Research (SEPM)

..., this analysis provides a quantitative two-dimensional description of grain shape, expressed as shape components, or harmonics. Each harmonic represents...

Correlation of Mean Sizes Obtained from Size Measurement by Thin-Section and Loose-Grain Methods: ABSTRACT

Basanta K. Sahu

AAPG Bulletin

..., respectively; where R.B. is the residual bias [EQUATION] hm is the harmonic mean; bar above letter indicates arithmetic mean; capital and small letters refer...

Abstract: Lunar Perigee-Syzygy-Declination Cycle Of 8 years: Evidence in Rainfall Records, by J. E. Sanders; #90954 (1995).

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