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The AAPG/Datapages Combined Publications Database

Showing 604 Results. Searched 200,673 documents.

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Sweet Infill Well Locations Prediction Using Multiple Supervised and Unsupervised Machine Learning Models

Mochammad Naufal Septifiandi, Ferdiansyah Rahman, Muhammad Husni Mubarak Lubis

Indonesian Petroleum Association

... in g/cm^3 Compressible Velocity Depth-wise Numerical in m/s Youngs Modulus Depth-wise Numerical in GPa Shear Velocity Depth-wise Numerical in m/s Shear...

2023

Geophysical Reconnaissance on African Shelf: I. Cape Town to East London

R. Leyden , M. Ewing , E. S. W. Simpson

AAPG Bulletin

... of our survey line the velocity-age correlation cannot be based solely on depth of burial. Agulhas Arch Profiles 218-221 are on the southwestern flank...

1971

Abstract: To TTI or not to TTI? Semi-Automated 3D Tomographic Velocity Analysis in the Canadian Foothills: A Case History; #90211 (2015)

Sylvestre Charles, David Mitchell, Rob Holt, Jiwu Lin, and John Mathewson

Search and Discovery.com

... study, we evaluate how velocity model building strategy affects imaging in the Canadian Foothills Thrust Belt. Two depth imaging processing techniques...

2015

RhoVe Method II: Empirical Density-Temperature-Effective Stress Transform, #42300 (2018).

Matt Czerniak,

Search and Discovery.com

...), and density-VES family of curves, which are the actual applications applied to a well of interest. At no time is the virtual velocity-depth or density...

2018

Geodynamic Model of the Subandean Zone in Alto Beni Area, Bolivia

Dietrich Roeder

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... the PeruChile trends. It shows the trench and the Nazca oceanic plate subducted eastward, with andesites rising from the depth zone around 150 Km. Sediments...

1982

The Raven Field: Planning for Success

Jane Whaley

GEO ExPro Magazine

..., Western and BP’s Exploration Production Technology Unit, to look at parameters such as adaptive summation, azimuthal velocity and depth migration...

2008

Slide Rule Seismic Computations

Robert H. Mansfield

Oklahoma City Geological Society

... a wide range of possible velocity functions. The circular ray path obtained by using a linear increase of velocity with depth provides a rather accurate...

1958

Presentation of a Velocity Mis-Tie

W. B. Robinson

Oklahoma City Geological Society

... "Standard" survey method which has been in use for the past 25 or 30 years. Average velocity to any depth = Z ÷ T. Interval velocity between any two...

1961

Workstations Promise New Life for Geology

Ted Moon

GEO ExPro Magazine

... and interpretation tools, which include velocity and depth conversion applications. However, the software has been spec­ ifically targeted...

2012

A Simple Guide to Depth Conversion: Part I

Ashley Francis

GEO ExPro Magazine

... Reservoir Sources of Velocity Measurements Seismic reflection data records the two-way travel time (TWT) to a reflection event from the surface. Depth...

2018

2-D and 3-D Prestack Depth Migration for Complex Geologic Structures Offshore Indonesia

M. Murphy, R. Ottolini, R. Estill, E. Lumadyo, M. Mathias

Indonesian Petroleum Association

... due to more accurate interval velocities and structural geometry resolution. 3-D prestack depth migration provides better migration velocity analyses...

1996

Improvement of Seismic Tomographic Imaging by Downward Continuation and Modified SIRT

Teuku A. Sanny, D. Santoso, D. Dahrin, Fatkhan, Alfian B.

Indonesian Petroleum Association

... drastically if we reconstruct the image by BPT as an initial model. Using prior knowledge of the velocity and depth, the Downward Continuation Principle...

1996

Refraction tomography at the Nova Ni-Cu mine

Ian James, Graeme Hird, Andrew Fitzpatrick

Petroleum Exploration Society of Australia (PESA)

... are applied to account for the near-surface variations in refractor velocity and depth. This was performed using several methodologies, from layer-based...

2019

A Comparison of Depth-Conversion Methods in the Gulf of Mexico

Melvan D. Carter, Gary R. Hyatt

GCAGS Transactions

...-conversion error as a function of layer, depth and space. While the results cannot be generalized blindly, the seismic average-velocity technique...

1990

Lithologically Controlled Pore Pressure Prediction and Geomechanical Modeling Using Probabilistic Multivariate Clustering Analysis and an Expert System

Alan A. Curtis, Eric Eslinger, Randy Nickerson, Siva Nookala, Francis Boyle

Unconventional Resources Technology Conference (URTEC)

... referred to as the “LVP” (Lithology-based Velocity and pore Pressure) routine. However, it is rare that wireline logs are recorded over the full depth...

2019

Structural and Tectonic Evolution of Oceanic Crust within the Jurassic Quiet Zone, Offshore Morocco: Chapter 14: African and Mediterranean Margins

James S. Holik, Philip D. Rabinowitz

AAPG Special Volumes

... velocity with depth than in the zones where they are not observed. This result is consistent with a volcanic or carbonate origi for the unit where high...

1992

Extended Abstract: Subsalt Imagery Of The Dumre Area, Ionian Basin, Albania. , #90099 (2009)

Anne Jardin, Luan Nikolla, François Roure

Search and Discovery.com

... model was built integrating on one hand, all velocity and depth data coming from shallow and deep wells, and on the other hand, adapted velocity...

2009

Abstract: Trace Interpolation and Elevation Statics by Conjugate Gradients; #90172 (2014)

Marcus Wilson, Robert J. Ferguson

Search and Discovery.com

... is computed using an assumed velocity model and the wavefield at depth is derived using weighted damped least squares. This method is used to correct common...

2014

Abstract: Integrated Geophysical Characterization of the Near-Surface at Priddis, Alberta; #90224 (2015)

J. Helen Isaac, Lei Zhi, Don C. Lawton, and L. R. Bentley

Search and Discovery.com

... data and calculated refraction statics using a generalized reciprocal method inversion algorithm (Palmer, 1981). The near-surface velocity-depth...

2015

Origin and Distribution of Overpressure in the Northern Malay Basin, #41103 (2012)

Mark Tingay, Chris K. Morley, Andrew Laird, Orapan Limpornpipat, Kanjana Krisadasima, Hamish Macintyre, Suwit Pabchanda

Search and Discovery.com

...-Effective Stress Plots Porosity Pressure Porosity-' or sonic velocity at depth of maximum burial Lithostat Fluid isolation depth \ i...

2012

AVO Modeling of Monochromatic Spherical Waves: Comparison to Band-Limited Waves; #41567 (2015)

Charles Ursenbach, Arnim Haase

Search and Discovery.com

... frequency, overburden velocity and depth. The weighting function is analytic and may be readily programmed in terms of these three variables...

2015

Simultaneous Joint Inversion of Seismic and Gravity Data for Long Offset Pre-Stack Depth Migration in Northern Oman, #41569 (2015).

D. Colombo, M. Mantovani, M. De Stefano, D. Garrad, Hussain Al Lawati

Search and Discovery.com

... of Bouguer anomaly) for improving velocity model building and the corresponding depth-domain seismic image. Introduction Effective depth imaging through...

2015

A Southern North Sea Multi-Survey preSDM using Hybrid Gridded Tomography, #41592 (2015).

Ian Jones, Emma Evans, Darren Judd, Alan Campbell, Steve Elam

Search and Discovery.com

... by vertical compaction gradients (velocity increasing with depth), controlled by de-watering, with isovelocity contours sub-paralleling the sea bed...

2015

Depth Prediction Ahead of the Bit: A Case Study from the Singa-1 Discovery Well, South Sumatra

Mark Crawley, David Ginger

Indonesian Petroleum Association

.... Banik, N.C., 1984, Velocity anisotropy of shales and depth estimation in the North Sea basin: Geophysics, 49, 1411-1419. Hardage, B.A., 1983, Vertical...

1998

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