High Resolution Interpretation in the Llanos Basin, Colombia

Germán Rodriguez, Hermes Garzón, Jaime A. Stein, Scott Humphrey, Guillermo Fajardo

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... deposited in a continental to shallow marine environment and have a wide areal distribution in the area. In the Cuatro area, the average gross...

Orientation Distribution Patterns of Graptolite Rhabdosomes from Ordovician Sediments in Central Victoria, Australia

Noel W. Schleiger

Journal of Sedimentary Research (SEPM)

..., calculations for X2 being for 11 degrees of freedom. Thus, if the random hypothesis is abandoned, a new harmonic hypothesis of the form: f() = [n]/[12...

Detrital Quartz as a Natural Tracer--fourier Grain Shape Analysis

Robert Ehrlich, John J. Orzeck, Bernhard Weinberg

Journal of Sedimentary Research (SEPM)

... - On), where Rn represents the amplitude of the "nth" harmonic and the remainder concerns the phase angle of that harmonic. The set of harmonic...

Variable Exponential Decline - Modified Arps to Characterize Unconventional Shale Production Performance

Ishank Gupta, Chandra Rai, Carl Sondergeld, Deepak Devegowda

Unconventional Resources Technology Conference (URTEC)

... by a power-law function variable decline rate. The application of this method was shown using production data from Haynesville and Eagle Ford. The average...

Fracture Geometry Measurements by Analyzing Multiwell Communications

Sofya Sizova, Roman Korkin

Unconventional Resources Technology Conference (URTEC)

... is detected at the offset well is described by (5) This equation describes each harmonic contribution to an offset well pressure signal calculated from...

Provenance and Areal Distribution of Late Pleistocene and Holocene Quartz Sand on the Southern New England Continental Shelf

Jim Mazzullo, Robert Ehrlich, Mary Anne Hemming

Journal of Sedimentary Research (SEPM)

... hundred ten surface grab samples, taken at an average spacing of 15 km, were provided for this study by the Woods Hole Oceanographic Institution...

Fourier Grain-Shape Analysis of Antarctic Marine Core: The Relative Influence of Provenance and Glacial Activity On Grain Shape

Daniel N. Livsey, Alexander R. Simms, Warren G. Clary, Julia S. Wellner, John B. Anderson, John P. Chandler

Journal of Sedimentary Research (SEPM)

... the twenty-first Fourier harmonic. Sediment provenance has a greater influence on grain roughness than glacial activity in the study area. However, provided...

Quartz Provenance Changes Through Time: Examples from Two South Carolina Barrier Islands

M. M. Smith, R. Ehrlich, R. Ramirez de Arellano

Journal of Sedimentary Research (SEPM)

... (Ehrlich and Chin 1980). Each harmonic amplitude represents the relative contribution to the empiric shape of a characteristic shape component. Elongation...

Evaluating Fracture Volume Loss during Flowback and its Relationship to Choke Size: Fastback versus Slowback

Yingkun Fu, Hassan Dehghanpour, Siyavash Motealleh, Carlos Manuel Lopez, Robert Hawkes,

Unconventional Resources Technology Conference (URTEC)

... and Eagle Ford wells show straight-line trends which represent harmonic decline. The estimated Vfi accounts for about 84% and 26% of the total injected...

Patterns of Quartz Sand Shape Variation, Long Island Littoral and Shelf

Debra D. Riester , R. Craig Shipp , Robert Ehrlich

Journal of Sedimentary Research (SEPM)

... at the bight apex. The average shelf gradient is 0.87 m/km (Freeland and Swift, 1978). It is a dominantly wave-controlled energy regime (microtidal...

Spectral Analysis of the Middle Triassic Latemar Limestone

Linda A. Hinnov, Robert K. Goldhammer

Journal of Sedimentary Research (SEPM)

.... FISHER, R.A., 1929, Tests of significance in harmonic analysis: Proceedings of the Royal Society of London, Series A, v. 125, p. 54-59. GAETANI, M...

Estimating Residual Fracture Pore Volume by Analyzing Post-Flowback Water Production: An Eagle Ford Black-Oil Case

Sabbir Hossain, Obinna Ezulike, Hassan Dehghanpour

Unconventional Resources Technology Conference (URTEC)

... these observations and to estimate the average fracture pore volume (Vf) during the post-flowback process. This model assumes no water influx from matrix...

Optimal Configuration and Information Content of Sets of Frequency Distributions

William E. Full , Robert Ehrlich, Stephen K. Kennedy

Journal of Sedimentary Research (SEPM)

... microprocessor system (ARTHUR II) described elsewhere (Fico 1980). The average diameter was calculated based on the maximum projection of each particle...

The Concept of Stationarity and Support in Permeability Assessment for Upscaling using the Probe Permeameter

Septi Anggraeni

Indonesian Petroleum Association

... is strongly controlled by matrix permeability (approximated by the weighted harmonic average of the matrix and vug permeability). Where the vug's length...

Abstract: Geophysical Benefits of from Improved Seismic Vibrator, by Michael Hall, John Wei, and Tom Phillips; #90105 (2010)

Search and Discovery.com

Abstract: Harmonic Decomposition of a Vibroseis Sweep Using Gabor Analysis; #90174 (2014)

Christopher B. Harrison, Gary Margrave, Michael Lamoureux, Art Siewert, and Andrew Barrett

Search and Discovery.com

...Abstract: Harmonic Decomposition of a Vibroseis Sweep Using Gabor Analysis; #90174 (2014) Christopher B. Harrison, Gary Margrave, Michael Lamoureux...

Magneto-Telluric Method Applied to Geothermal Prospecting*

Gerard Cormy

Southeast Asia Petroleum Exploration Society (SEAPEX)

... prospecting in: Italy, east of the Larderello field, where stations were laid out at an average spacing of 800 meters over an area of about 30 sq. kms...

Grain-Shape Variation in the St. Peter Sandstone: A Record of Eolian and Fluvial Sedimentation of an Early Paleozoic Cratonic Sheet Sand

James M. Mazzullo, Robert Ehrlich

Journal of Sedimentary Research (SEPM)

... at an average spacing o 8 inches. This core, which includes two-thirds of the total thickness of the formation in the Twin Cities area, starts from...

Diagnostic Applications of Borehole Hydraulic Signal Processing

Connor J. Clark, Jennifer L. Miskimins, Dana L. Gallegos

Unconventional Resources Technology Conference (URTEC)

...-Julesburg basin, Colorado. The calculated depth of the shallowest treated perforation was identified with an average error of 30’ off of the recorded...

The Effects of Wind Transport on the Shapes of Quartz Silt Grains

Jim Mazzullo, Andrew Alexander , Thomas Tieh , Ding Menglin

Journal of Sedimentary Research (SEPM)

... harmonic of the series represents a standard circular form with n evenly-spaced nodes (where n is the harmonic number). The lower h rmonics are closed...

Pitfalls of Averaging Fracture Dimensions and Reservoir Permeability for Unconventional Reservoirs

R. Jayakumar, A. Boulis, Aura-Araque Martinez

Unconventional Resources Technology Conference (URTEC)

... Different averaging techniques such as: geometric mean, arithmetic mean, median and harmonic mean for the single average fracture half-length were originally...

Level of Heat Flow in the Western Part of the Tersko-Kuma Depression

G. M. Sukharev, S. P. Vlasova

Petroleum Geology: A Digest of Russian Literature

... squares for each interval, calculations were made of the geothermal gradient and also of the average arithmetical and average harmonic values of heat...

Factors Influencing Productivity: Chapter 4

Sada D. Joshi

AAPG Special Volumes

... 81------------------------- Figure Figure Measurement of Vertical Permeability 1) Core data; arithmetic, harmonic average, etc. 2) Breakthrough...

Correlating Versus Inverting Vibroseis Records: Recovering What You Put into the Ground; #41577 (2015)

Glen Larsen, Paul Hewitt, Art Siewert

Search and Discovery.com

... to address three main areas of vibroseis specific noise: harmonic energy, side-lobe spurious reflectivity generated by correlation and, thirdly...

Sources, Distribution, and Mixing of Late Pleistocene and Holocene Sands on the South Texas Continental Shelf

Jim Mazzullo, K. D. Withers

Journal of Sedimentary Research (SEPM)

... values (average value: .068) at the third harmonic, while that of end member 2 is dominated by grains with relatively high amplitude values (average...