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The AAPG/Datapages Combined Publications Database
Showing 20,604 Results. Searched 200,357 documents.
Standard Interpretation: Part 4. Wireline Methods
Mark Alberty
AAPG Special Volumes
... from the Archie equation since there is little or no volume shale, as indicated by the End_Page 184------------------------ gamma ray. Rt should...
1992
Use of Multiple Log Curves to Predict Permeability in a Dolomite Reservoir, San Andres of Welch Field, Dawson County, Texas
Gregory D. Hinterlong
West Texas Geological Society
... Kozeny equation from log data. By utilizing data from the Rxo, bulk density (combined with a photoelectric or acoustic), and gamma ray curves, inputs...
1996
Enhanced ray-based tomography method
Jonathan Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
...Enhanced ray-based tomography method Jonathan Liu Enhanced ray-based tomography method Jonathan Liu*, University of Houston Summary The ray-based...
2024
Premigration attenuation analysis and mapping to image domain by weighted migrations
Yonghe Sun, Chunling Wu, Mark Fan, Zhemin Tan
International Meeting for Applied Geoscience and Energy (IMAGE)
... an interpretation of equation (10) for a small change from Δ𝑡 to 𝑡 + Δ𝑡 along the ray path 𝒙(𝑡) starting with 𝒙(0) = 𝒔. The Δ𝑡 corresponds...
2022
Abstract: Neutron Computed Tomography (NCT) Applied to Studies of Porosity and Fluid Content in Porous Media, by Nicolas J. Huerta; #90039 (2005)
Search and Discovery.com
2005
Application of Wave Equation Tomography in Frontier Areas
Tien-when Lo, Guy W. Purnell
Indonesian Petroleum Association
...Application of Wave Equation Tomography in Frontier Areas Tien-when Lo, Guy W. Purnell 1990 245 251 In frontier areas, insufficient information...
1990
Streamlining subsurface insights: Single extrapolation for holistic Green's function generation
Hongwei Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... of migration velocity models. Traditionally, prestack depth migration (PSDM) based on ray-tracing-based Kirchhoff integration is predominantly employed...
2024
Petrophysical Interpretation Problem: Permian, Upper and Lower Avalon Shale: Southeast New Mexico
G. B. Asquith
West Texas Geological Society
... for this well consists of the following logs: 1.) Array Laterolog – Rxo, 2.) Neutron-Lithodensity, 3.) Spectral Gamma Ray Log, and 4.) Geochem (ECS) Log...
2014
ABSTRACT: A Hybrid Wave Equation Datuming and Kirchhoff PSDM Solution for Accurate Onshore Seismic Imaging, by Hu, Leon L.; Saleh, Saleh; Sliz, Krzysztof; Ley, Robert E.; #90141 (2012)
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2012
Abstract: Subsalt Velocity Estimation Using Wave-Equation Tomography with Surface Offset Gathers; #90319 (2018)
Yujin Liu, Yan Wu, Xiongwen Wang, Tong W. Fei, Yi Luo
Search and Discovery.com
... by ray tracing methods and wave equation (WE) tomographic operators. In subsalt areas, ray tracing cannot handle the large velocity contrast between salt...
2018
ABSTRACT: Log Interpretation of Shaly Sandstones: a General Model, by Joel Foster Baker; #91030 (2010)
Search and Discovery.com
2010
A New Approach to Seismic Interpretation in Challenging Imaging Environments, by C. Edward Helsing and David C. Berman; #90052 (2006)
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2006
A Procedure for Computing the Lattice Constants of Some Crystal Systems
S. H. Chan
Geological Society of Malaysia (GSM)
... systems are related by the general equation, (i ) while in the hexagonal system they are related by the equation, (1/d 2) = [4(h 2 + hk + k2)/3a 2...
1976
Extended Abstract: Geological interpretation of Spectral Gamma Ray (SGR) in Nyalau Formation of black shale and mudstone of Central Sarawak, Malaysia
Walaa Elnasir Ibrahim, Abdul Ghani Md Rafek, Ahmed Mohamed Ahmed Salim
Geological Society of Malaysia (GSM)
... the formula taken from https://en.wikipedia. org/wiki/Gamma_ray_logging, the equation was used to calculate Gamma Ray in API, GR API = 8 × Uranium...
2018
Abstract: Practical Implementation of Wave-Equation Datuming for Resolving Near-Surface Problems, by Khaled Al Dulaijan and Saleh M. Al-Saleh; #90105 (2010)
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2010
Shale Gas and Shale Oil Identification Through Geophysical Inversion of Well Logs
Search and Discovery.com
N/A
Wide-angle AVO-inversion using constant P-traces: AVP-inversion
Dennis Cooke
International Meeting for Applied Geoscience and Energy (IMAGE)
... and twt is the arrival time before NMO flattening. Excellent options for calculating twt are ray tracing or using a higher order NMO equation. Anisotropy...
2022
Tomography Techniques Applied to Near Surface Velocity Models in Complex Areas of Colombia
Jorge Monsegny, Saúl Guevara
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... of the ith ray across the jth cell. The modeling equation that calculates the vector of travel times is: P = SM .......... .......... .......... .....(1...
2008
Fluid and Petrophysical Prediction in the Elastic Impedance Domain Using Neural Network Technique; #41066 (2012)
M. Hermana, M. Najmi, Z.Z.T. Harith, and C.W. Sum
Search and Discovery.com
...’s equation. For lithological prediction, the EEI-Gamma ray log correlation was performed to determine the optimum chi angle for lithological...
2012
Petrophysical Relationship to Predict Synthetic Porosity Log; #41124 (2013)
Thariq Guntoro, Intan Putri, and Ayi Syaeful Bahri
Search and Discovery.com
... of depth, Vp estimation using Faust’s equation delivered a higher value. It is caused by the influence of high resistivity and a low gamma ray...
2013
Abstract: Method for Analysis and Display of Elastic Synthetic Shot Gathers, by K. H. Wrolstad, F. Aminzadeh, and C. K. von Kahrs; #90992 (1993).
Search and Discovery.com
1993
A Practical Review of Migration Issues and Solutions; #40723 (2011)
Ian F. Jones
Search and Discovery.com
..., both of which are numerical solutions to the wave equation. These two categories are the integral methods (including Kirchhoff and beam techniques...
2011
Abstract: Effects of Depositional Facies and Diagenesis on Calculating Petrophysical Properties from Wireline Logs in Permian Carbonate Reservoirs of West Texas, by M. H. Holtz and R. P. Major; #90980 (1994).
Search and Discovery.com
1994
Abstract: Using Downhole Displacement and Inferred Production for Verification of Measured Test Data, by L. Ray; #90911 (2000)
Search and Discovery.com
2000
Shaly Sand Analysis: Chapter 3
George B. Asquith
AAPG Special Volumes
... the gamma ray log at a depth of 6680 feet. GRmax = 98 at 6590 feet (Fig. 8) GRmin = 17 at 6460 feet (Fig. 10) GRlog = 40 at 6680 feet (Fig. 8) [EQUATION...
1990