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The AAPG/Datapages Combined Publications Database

Showing 20,640 Results. Searched 200,626 documents.

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A Comparison of Prestack Depth and Prestack Time Imaging of the Paktoa Complex, Canadian Beaufort MacKenzie Basin

G. R. Elsley, H. Tieman

AAPG Special Volumes

... processing differs from time-migration processing, mainly in its ability to consider lateral changes in velocity. This ability allows processors to ray...

2010

The 'Geoseis' System: Seismic Prospecting with Detonating Cord - A Line Energy Source

D. W. Thompson

Petroleum Exploration Society of Australia (PESA)

... a linear source, such as detonating cord, is fired it explodes with a measurable velocity of detonation (VOD) equivalent to Vct· For detonating cords...

1985

Exploring the Sub-Salt Play in the Frontier Amadeus Basin„Insights from Regional 2D Seismic and Potential Field Data

Emma Hissey, Jennifer Clifford, Tim Debacker

Petroleum Exploration Society of Australia (PESA)

... with a different processing stream. The velocity model was built in several steps, from initial stacking velocities through to the final depth interval velocity...

2016

Limitations of Reflection Seismograph

L. E. Nugent, Jr.

AAPG Bulletin

... of this time to depth by of a velocity factor. Thus, a discussion of the instrumentation controlling the precision of time measurement, the method...

1953

Improved Structural Imaging of the Karama Seismic Survey Using Anisotropy Kirchhoff and Beam Depth Migration

Zbigniew Ostapiuk, Bee Jik Lim, Martin Bayly

Indonesian Petroleum Association

... with a similar workflow. INTRODUCTION Tilted Transversely Isotropic Velocity Model Building and Depth Imaging Workflow The Karama survey...

2012

The Wedge Model Revisited; #41545 (2015)

Joanna K. Cooper, Don C. Lawton

Search and Discovery.com

... ray tracing results, to identify the travel times and modes of observed events. These models are analogues of high velocity wedges of carbonate rocks...

2015

Carbonate Concepts from the Maldives, Indian Ocean

Edward G. Purdy, George T. Bertram

AAPG Special Volumes

... if the velocity effect of the changing water depth were removed. This suggests that the lower part of the slope at least is destructional rather than...

1993

Use of Gravity Meter in Search for Stratigraphic Traps: Geologic Exploration Methods

Craig Ferris

AAPG Special Volumes

... depth of every well; too many wells are logged only in the "pay" section. Near-surface density and velocity data are vital to every exploration...

1972

Extracting Meaningful Estimates of Rock Properties from 3-D Anisotropic Velocity Models Derived from Borehole Microseismic

Scott Taylor, Jeremy King, Ben Schaeffer, Todd Hibbitts, Lucas McGreaham, Khaled Ghuneim

Unconventional Resources Technology Conference (URTEC)

... modeling is performed by two point ray tracing following the velocity approximations of Fomel (2004). For modeling, layers are constructed...

2016

Prestack inversion and amplitude variation with offset attributes as hydrocarbon indicators in carbonate rocks: A case study from the Illinois Basin

Jacob T. Murchek, Paul McColgan, Lindell C. Bridges, Ernest C. Hauser, and Doyle R. Watts

AAPG Bulletin

... of interest. The sonic log velocity scale is 5000–20,000 ft/s (1524–6096 m/s). The gamma-ray log scale is 0–300 API units. The North Vernon Limestone (NVL...

2023

Bristol Bay: Model Contemporary Graded Shelf

G. D. Sharma , A. S. Naidu , D. W. Hood

AAPG Bulletin

... at a depth (d) of about 94 m of a wave of these dimensions would be: [EQUATION] Consequently, the water particle velocity produced by the wave...

1972

Core-Log Transformations and Porosity-Permeability Relationships: Part 5. Laboratory Methods

Walter A. Nagel , Keith A. Byerley

AAPG Special Volumes

... to log depths. Core gamma ray is commonly used for depth control and can be of great assistance only if there is sufficient gamma ray activity...

1992

Identification and Diagenesis of a Phylloid Alga: Archaeolithophyllum from the Pennsylvanian Providence Limestone, Western Kentucky: DISCUSSION

Nicholas E. Pingitore, Jr.

Journal of Sedimentary Research (SEPM)

... of incorporation of Sr2+ in calcite: determination by x-ray absorption spectroscopy: Geochimica et Cosmochimica Acta, v. 56. p. 1531-1538. SANDBERG, P.A....

1994

The Rhomaa - Umaa Crossplot

John H. Doveton

Special Publications of SEPM

... of the lower section and Photoelectric factor 10 0 --------- Gamma Ray 0 API units 150 38. 88 Maquoketa Sh Depth (feet) -3450 Viola Ls - 3500 3550...

1994

Using clay microporosity to improve formation evaluation in potential residual oil zones: Cypress Sandstone, Illinois Basin

Leo G. Giannetta, Nathan D. Webb, Shane K. Butler, and Nathan P. Grigsby

AAPG Bulletin

... for clay microporosity using clay volumes estimated from gamma ray (GR), including linear relationships (i.e., GR index) or nonlinear relationships...

2021

An enhanced method for evaluating the static connectivity of reservoirs using pressure coefficient–depth plots

Geng Qian, Haifeng Yang, Dayong Guan, Jinghan Wang, Junpei Yue, and Meng Zhao

AAPG Bulletin

... pressure at any given depth follows a linear relationship (Heriot-Watt University, 2005) (Figure 1). The slope of this line directly reflects fluid density...

2025

erformance of Seismic Arrays in the Presence of Weathering Layer Variations, #41841 (2016).

Jubran Akram, Abdullatif A. Al-Shuhail

Search and Discovery.com

... of the plane wavefront, Vw is the weathering layer velocity, b is the channel depth, and β is the angle of the line connecting the intersection point...

2016

Advances in OBN Technology: Full Azimuth, Long Offset Illumination for Complex Reservoirs, #70290 (2017).

John Smythe

Search and Discovery.com

... ~ 500000 shot Locations (50 x 50 m) • Duration 138 days • Avg. water depth: 2000m • 10 km minimum offset Processing Benefits of OBN Acquisition...

2017

Case Study - Advanced Seismic Acquisitions and Processing Results in Indonesia

Michele Buia, Bakhrudin Mansyur, Herastya Iman Priyonggo

Indonesian Petroleum Association

... of surveys were modelled using ray tracing on the Aster velocity-depth model. In particular, Eni Indonesia generated three single azimuth surveys...

2011

X-Ray Fluorescence Determination of Ni, Cu, and Zn in Rock Powders with Variable Matrices: ABSTRACT

J. R. Smith, R. G. Arnold

AAPG Bulletin

...X-Ray Fluorescence Determination of Ni, Cu, and Zn in Rock Powders with Variable Matrices: ABSTRACT J. R. Smith, R. G. Arnold 1964 548 548 48 4...

1964

ABSTRACT: Advanced Geophysical Logging in Shallow Unconsolidated Coastal Plain Sediments; #90019 (2003)

Douglas E. Wyatt

Search and Discovery.com

... ray and resistivity measurements. These measurements are generally well understood and accepted for simple stratigraphic mapping and fluid modeling...

2003

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