Determination of Average Grain Sphericity in Granular Porous Media

Basanta K. Sahu

Journal of Sedimentary Research (SEPM)

... for the effect of random thin sectioning is needed as the sectional sizes are usually smaller than the true size since the section plane does...

Bed-Thickness Structure of Multi-Sourced Ramp Turbidites: Devonian Brallier Formation, Central Appalachian Basin

Carl N. Drummond

Journal of Sedimentary Research (SEPM)

... with thickness measurements are largely random, and are considered to be sufficiently uncommon to cause no significant effect on reported thickness...

Compensational Stacking of Channelized Sedimentary Deposits

Kyle M. Straub, Chris Paola, David Mohrig, Matthew A. Wolinsky, Terra George

Journal of Sedimentary Research (SEPM)

... by comparing observed stacking patterns in subsiding basins to what would be expected from uncorrelated random stacking. This method uses the rate...

Rhomboid Ripple Marks and their Relationship To Beach Slope

David F. Demarest

Journal of Sedimentary Research (SEPM)

... the results of experiments by H. Engles (1905) at Dresden, Bucher states, "... the first effect of transportation by a uniform current...

Optimization of Infill Drilling in Naturally Fractured Tight Gas Sandstone Reservoirs in the San Juan Basin - Workshop Summary

Lawrence Teufel, Scott Cooper, John Lorenz, Bruce Hart, Robin PEarson, Hamoud Al-Hadrami, Her-Yuan Chen, Arild Sunde, Mike Kelly

PTTC

... to geometries of the original surveys, low signal-to-noise ratios, coherent noise and seismic thin beds. In analyzing the data, the seismic data were separated...

Listening with Light!

Jane Whaley

GEO ExPro Magazine

... and noise.” Hilde concludes that “a permanently installed system, leading to enhanced repeatability from survey to survey, significantly aids oil companies...

Marine Seismic Sources: Part VII: Fish are Big Talkers

Martin Landrø, Lasse Amundsen

GEO ExPro Magazine

... the effect of seismic scattering from the ice layer that was dis- 50 0 -50 0 0.5 1.0 Time (s) 66 GEO ExPro MARCH 2011 1.5 turbing reflections...

A Compensated Spectral Natural Gamma Ray* Logging System

C. Kessler, R. Washa, G. S. Yarbro

Indonesian Petroleum Association

... curve NOIS is the count rate in a window with an energy level just below the photo-electric window in the tool. Any noise in the CSNG system would...

Exploring Geophysical Exploration

Carl H. Savit

Houston Geological Society Bulletin

... spot. In effect, this process uses the information contained in the amplitude of seismic reflections in combination with other data to derive...

Anisotropic Multi-Azimuthal Velocity Model Building and Depth Imaging on Tulip 3D Coil Shooting Survey

Michele Buia, Suyang Chen, Olga Zdraveva, Swee Leng Ng, Martin Bayly, Michelle Tham

Indonesian Petroleum Association

... of these complexities is poor overall seismic response, very low amplitude or near invisible target reflections, very low signal-to-noise ratio (S/N), poor imaging...

Concentration Changes of Ca, Cu, Li, Mg, K, Na, and Sr in the Hudson River, New York: NOTES

Burton P. Fabricand, Eugene S. Imbimbo, Mary E. Brey

Journal of Sedimentary Research (SEPM)

... samples. This procedure insured approximate equality of viscosity and negated the effect of sodium on the absorptions of the other alkali metals...

A Decade of 4D Seismic Monitoring of Carbonate Gas Reservoirs in Offshore Sarawak, Malaysia (Paper A6)

Paul Hague, Chiem Boon Hong

Geological Society of Malaysia (GSM)

...-repeatable noise on 4D seismic data. For these reasons, Shell has adopted a cautious approach to implementing 4D seismic monitoring of the Miocene...

Seismic Migration: Part 7. Geophysical Methods

Ken Larner, David Hale

AAPG Special Volumes

... signal-to-noise ratio while producing a seismic time section that simulates what would have been recorded in a zero-offset seismic survey, that is, one...

Abstract: Sub-Salt and Sub-Basalt Imaging Using Long Offset and Multicomponent Seismic Data, by J. Gaiser, N. Jones, and P. Fontana; #90923 (1999)

Search and Discovery.com

Abstract: Applying the Phase Congruency Algorithm to Seismic Data Slices … A Carbonate Case Study; #90171 (2013)

Brian Russell, Dan Hampson, and John Logel

Search and Discovery.com

... for frequency spread and a noise threshold. However, equation (1) is sufficient for an understanding of the basic algorithm. More importantly, Kovesi...

Learning from 40 Years Experience: Risking Seismic Amplitude Anomaly Prospects; #110139 (2010)

Mike Forrest

Search and Discovery.com

....” Factors: o Rock physics o Seismic signal-to-noise ratio o Geology vs. seismic resolution. Review the Seismic and Rock Physics. Can DHI’s be a factor in your...

Wave-Equation-Based Target-Oriented Inversion for Reservoir Characterisation, #41759 (2016).

Dries Gisolf, P.R. Haffinger, P. Doulgeris

Search and Discovery.com

... example a gas-related amplitude effect was revealed that had not been identified on the seismic data. Reference Cited Beller, M. P. Doulgeris, A. Gisolf...

An Hypothesis of Diastrophism

R. C. Tuttle

Tulsa Geological Society

... of the regular cycles), some at apparent random periods, (passage of some large body through space close enough to affect the solar system). In terms...

Size and Shape of Rock-fragments in Tuscarora Scree, Fishing Creek, Lamar, Central Pennsylvania

J. C. Griffiths

Journal of Sedimentary Research (SEPM)

... (H), Spalding (S), and Wood (W) were assigned to alternate spots. The first spot was selected at random and the subsequent spots were uniformly spaced...

Comments on the Wegener Hypothesis

Edward W. Berry

AAPG Special Volumes

... to account for their predicated effect. Geodetic observations that are cited as showing changed positions on the earth's surface are extremely minute...

Compaction and Porosity Evolution of Pliocene Sandstones, Ventura Basin, California: REPLY

John C. Wilson, Earle F. Mcbride

AAPG Bulletin

.... (October) Atwater, G. I., and E. G. Miller, 1965, The effect of decrease in porosity with depth on future development of oil and gas reserves in south...

Abstract: Rotation of 3D Objects: The Importance of Center of Rotation, by Joshua Coyan and Stephen Reynolds; #120140 (2014)

Search and Discovery.com

Subsidence and Heat Flow in Intracontinental Basins and Passive Margins

Jean-Claude Mareschal

CSPG Special Publications

... (i.e., on the initial conditions). Unfortunately, the examples show that such a procedure amplifies the effect of noise and errors in the data...

Enhanced Vertical Flow Profile Determination of Fractured Basement Wells Using Temperature Log Interpretation

Ahmad Faisal

Indonesian Petroleum Association

... is limited to the deflection of the log curve, in line with the Joule – Thompson effect in the producing well; a swing to the left means a cooling...

Use of Machine Learning on SCADA Data for Assets Prognostics Health Management

Alexandre Cesa, Elliot Press

Australian Petroleum Production & Exploration Association (APPEA) Journal

... 8 A, B, C feed composition (stream 4) Random 9 D feed temperarure (stream 2) Random 10 C feed temperarure (stream 4) Random 11 Reactor...