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The AAPG/Datapages Combined Publications Database

Showing 1,248 Results. Searched 200,691 documents.

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Use of the Chi-Square Test for the Analysis of Orientation Data

C. K. Ballantyne, R. Cornish

Journal of Sedimentary Research (SEPM)

... the convention of E 5.0, the data were grouped in nine sectors of 20°, using summation of frequencies in diametrically opposite sectors as described above...

1979

Reservoir Quality: Part 6. Geological Methods

S. P. Grier, D. M. Marschall

AAPG Special Volumes

... quality (Keelan, 1972) and heterogeneities. Core analysis porosities are typically determined using one of three techniques: summation of fluids...

1992

Bank Sediment Type and Suspended-sediment Transport in Sand-bed Streams

James E. Pizzuto

Journal of Sedimentary Research (SEPM)

... be used to define a parametric % siltclay deposited, P: P = Vscw/ Vsici, (6)] where the summation refers to all grain sizes, and Cw...

1985

Developments in Arizona and Western New Mexico in 1957

Harrell Budd

AAPG Bulletin

... previously discovered pools. Of these, 3 were successful and 3 unsuccessful, with the resulting success ratio of 50%. In summation, new-field...

1958

Statistical Analysis of Regional Facies Change in Ordovician Cobourg Limestone in Northwestern New York and Southern Ontario

L. Lippitt

AAPG Bulletin

... preference for the NW.-SE. quadrants as shown by Figure 4 and as calculated by Curray's (1956) vector summation method. The latter gave a vector magnitude...

1959

Developments in Southeastern States in 1959

F. B. St. John, Jr. , Tracy W. Lusk

AAPG Bulletin

.... Core-drill exploration was cut nearly in half. Table XIII is a summation of geophysical and core-drill activity. TRENDS IN EXPLORATION, DRILLING...

1960

Nubia Sandstone: Type Section: GEOLOGICAL NOTES

Bahay Issawi

AAPG Bulletin

... phosphate and the overlying formations exposed in the middle latitudes of Egypt. In summation, the Nubia Sandstone in its type area is a magnafacies...

1973

Some Lower and Middle Jurassic Beds in Puale Bay-Alinchak Bay Area, Alaska Peninsula: GEOLOGIC NOTES

R. W. Imlay , R. L. Detterman

AAPG Bulletin

... Haugia (Mesozoic loc. 1 804) which was collected only 30 ft (9 m) above the base of the siltstone sequence. In summation, near Puale Bay early Bajocian...

1977

ABSTRACT: Rejuvenation of a Mature Field Through Application of a Unique Frequency Enhancement Technology; #90007 (2002)

Marcus L. Countiss

Search and Discovery.com

... of interest. In summation, this project generated seven new drilling opportunities, all of which turned out to be commercial producers. It would...

Unknown

ABSTRACT: The Heterogeneity Cube: a Family of Seismic Attributes; #90007 (2002)

Imhof M.G.

Search and Discovery.com

...) · d(x + δx + ∆x, y + δy + ∆y, z + δz + ∆z) , δx,δy,δz ˆ where N is the number of non-zero terms in the summation. The resulting local LCCF R(∆x, ∆y, ∆z...

Unknown

Abstract: Beyond the Dots in the Box - Microseismicity-Constrained Fracture Models for Reservoir Simulation; #90172 (2014)

Leo Eisner, Sherilyn Williams-Stroud, Andrew Hill, Peter Duncan, Mike Thornton

Search and Discovery.com

...’s function derivative (Aki and Richard, 1980). Einstein’s summation rules over j,k indexes applies Equation (1) can be inverted by either least...

2014

Abstract: A Stable Criterion for Shear-Wave-Splitting Analysis; #90174 (2014)

Xinxiang Li and Jeff P. Grossman

Search and Discovery.com

.../transverse energy ratio. The power or energy of a trace - the summation of the squared sample amplitudes - is independent of time shifts. Thus, neither trace...

2014

Abstract: Two-stage Blind Deconvolution; #90187 (2014)

Mafijul Islam Bhuiyan and Mauricio D. Sacchi

Search and Discovery.com

... as the summation of an initial wavelet W0 and a wavelet perturbation ∆W. Now, to estimate the reflectivity series (r) and wavelet perturbation (∆w ) from the multi...

2014

Abstract: Preliminary Geochemical Interpretation of Preserved Shallow Cores, Labrador Basin Complex, Labrador Sea, Canada; #90187 (2014)

Graham Dillabough

Search and Discovery.com

.... • A summation of several classes of compounds was charted and used to identify those samples that contain an abundance of normal alkanes relative...

2014

Abstract: Relaxing the Near-Surface assumption in Estimating 3C Receiver Orientations: Azimuth-Stack Power Optimization of Reflected PS Data; #90187 (2014)

Nirupama (Pam) Nagarajappa, Peter Cary, and Chuck Ursenbach

Search and Discovery.com

... t within the time window,  is the test angle,  is the shot-receiver azimuth and the subscript i is the trace index. The summation over traces of variable...

2014

Abstract: Multifocusing 3D Diffraction Imaging for Dectection of Fractured Zones in Mudstone Reservoirs; #90224 (2015)

Alana Schoepp, Evgeny Landa, Stephane Labonte

Search and Discovery.com

... to separate and image diffractions. We have used Diffraction Multifocusing Method which consists of an optimal summation of seismic data along...

2015

Source and Reservoir Rock Attributes of Mesoproterozoic Shale, Beetaloo Basin, Northern Territory, Australia; #110130 (2010)

Ben Law, T. Ahlbrandt, D. Hoyer

Search and Discovery.com

...- Weatherford Core Analysis Shenandoah 1 Reservoir Summation – Porosity (PHIE) > 0.05 Depth (m) Net Pay (m) PHIE SW TOC PORIG HPERM (md) U Kyalla...

2010

Characteristics of the Free Surface Multiple Attenuation Using Wave Field Extrapolation; #40504 (2010)

Patrícia P. Ferreira, Marco Antonio, Cetale Santos, and Luiz Landau

Search and Discovery.com

..., the estimated multiples are then subtracted from the input data. Instead of using the Kirchhoff summation process, wave plane shots were employed...

2010

The Lower Abo Horizontal Oil Play of Southeast New Mexico, #10370 (2011)

Ted Gawloski

Search and Discovery.com

... • • • • TRAP TYPES DIAGENESIS – THE GOOD, THE BAD AND THE UGLY EXPLORING FOR THE LOWER ABO – SIMPLE WORKS BEST SUMMATION AND CONCLUSIONS LOWER ABO...

2011

Application of Illumination Compensation to Irregular Surface Areas Imaging; #40773 (2011)

Yueming Ye and Ru-shan Wu

Search and Discovery.com

... number domain and then transform them into local angle domain after all the shot summation. The influence of irregular topography has been eliminated...

2011

High-Resolution Variograms from Optical Borehole Imaging for Borehole-Scale Geostatistical Rock Simulation and Lattice Boltzmann Flow Simulation in High-Permeability Carbonates; #120091 (2013)

Michael C. Sukop and Kevin J. Cunningham

Search and Discovery.com

... the applied pressure gradient. The Darcy flux can be obtained as the summation of the x-axis velocities over any plane perpendicular to the bulk flow...

2013

An Analytic Approach to Sweetspot Mapping in the Eagle Ford Unconventional Play; #80406 (2014)

Murray Roth, Michael Roth, Ted Royer

Search and Discovery.com

... is applied to the predictor variables, in order to transform them into linear predictors of the response variable. The summation of these transform...

2014

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