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The AAPG/Datapages Combined Publications Database
Showing 20,635 Results. Searched 200,599 documents.
Chapter 10: Earthquake, Tomographic, Seismic Reflection, and Gravity Evidence for a Shallowly Dipping Subduction Zone beneath the Caribbean Margin of Northwestern Colombia
Rocio Bernal-Olaya, Paul Mann, Carlos A. Vargas
AAPG Special Volumes
... selected was calculated from ten possible velocity models (Ojeda and Havskov, 2001) where depth to Moho and Vp/Vs values were examined. The optimized...
2015
The effects of seismic anisotropy on mining seismology
Andrew King
Petroleum Exploration Society of Australia (PESA)
... numerically, by first interpolating the phase angle given the ray angle, and then computing the group velocity. Determination of Anisotropy from...
2019
Relationships Between Surface Area and Grain Size in Bottom Sediments: RESEARCH-METHOD PAPER
Sandro Rabitti, Alfredo Boldrin, Laura Menegazzo Vitturi
Journal of Sedimentary Research (SEPM)
... the simple linear regression equation: y = 1.44 + 0.59 x where y represents the estimated value of SSA in m2/g and x the measured percentage of clay...
1983
Implementation of the DIPSCAN Method to Estimate Boundary Dips in Complicated Structures by VSP Data
A. A. Tabakov, V.N.Ferentsi, H. Gravini
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
...) and velocity model of media in a vicinity Ω are known. From Fermat’s principle follows, that the ray is propagated from source point S to receiver point M...
2006
Devonian Lithology Identification Utilizing Porosity Logs
G. F. Chambliss
Four Corners Geological Society
... in different manners. The Sonic log, for any given porosity, would indicate a higher formation velocity in limestone that it would in sandstone...
1960
2010
ABSTRACT: Anisotropic 3-D Pre-Stack Time Migration Processing of Oguali 3-D Survey in Cental Niger Delta; #90115 (2010)
Tunde I. Okunuga, Robinson S. Dike, Timothy J. Brooks, and Lawrence Ajabor
Search and Discovery.com
... for anisotropy analysis. WesternGeco’s full ray tracing workflow derives true vertical interval velocity and interval eta values instead of averages. Therefore...
2010
High Resolution Monitoring and Modeling of Steam Injection in the Athabasca Oil Sands at UTF: A Case Study
Search and Discovery.com
... mudstones of the Clearwater formation. The colorscale is cast to the Gamma-ray count (API) for each depth measurement. AAPG Search and Discovery Article...
2013
Wireline Source-Rock Evaluation in the Paris Basin: Chapter 5
Susan L. Herron, Louis Le Tendre
AAPG Special Volumes
... the organic-rich lower Toarcian shale. An 18-m interval of the source rock was cored and logged with the Gamma Ray Spectrometry Tool (GST (FOOTNOTE...
1990
Application of phase stabilization Q migration in comprehensive evaluation and identification of tight-reservoir
Yi Bao, Hai-Bo Zhao, Xu Liu, Xiao-Wei Guan, Xin-Yue Song, Cheng Wang, Zai-Jin Zhang
International Meeting for Applied Geoscience and Energy (IMAGE)
... information related to the ray path is stored as the imaginary part. The apparent dip gather in the depth domain is calculated using the following formula...
2024
Percentile Log Normalization: Example from Bar-Mar Field, Crane County, Texas
Mark R. Vining
West Texas Geological Society
... of a formation property (gamma-ray or porosity, for example) remain constant and can be used to calibrate the log. Bar-Mar Field Bar-Mar Field lies...
1998
Enhanced Monitoring of Geologic Carbon Sequestration Using 3-D Passive Microseismic Location Techniques
Delaine Reiter and William Rodi
Search and Discovery.com
... homogeneous up to 3-D velocity models Ray tracing with choice of two different algorithms: Example Regional 3D P Ray Path Finite-difference first...
2009
Construction of Geological Sections of Folds with Steep-Limb Attenuation
William Daniel Gill
AAPG Bulletin
... of error in applying this equation lies in the assumption that the amount of compaction is a linear function of the force of compaction...
1953
Abstracts: Synthetic Microseismic Files; #90173 (2015)
J. Wong, P. M. Manning, L. Han, and J. B. Bancroft
Search and Discovery.com
... modes. Figure 1 shows ray-tracing through an isotropic layers velocity model; Figure 2 shows 3C microseismograms synthesized by convolving a designed...
2015
Diagenesis Severely Modified Reservoir Characteristics: A Unique Carbonate Reservoir from Alur Siwah Field, Indonesia; #20203 (2013)
Ricardo Maranu, Ismail Syarifuddin, Erham Adhitiawan, Nadia Nurul, Miftahurochman Miftahurochman, Ferry Baskaraputra, Luqman Luqman, Yudi Yanto, and Joan Lumban Tobing
Search and Discovery.com
... shows a good linear relationship. This suggests that porosity can be estimated from AI by a transform equation. So, it is interpreted that low AI...
2013
Unconventional Multi-Variate Analysis: A Non-Linear Review of the Most Relevant Unconventional Plays in the U.S.; #80428 (2014)
Roderick Perez
Search and Discovery.com
... of transformations indicate an incomplete model – additional variables needed -1.52 1.68 (GAMMA RAY)* (λρ)* 0.25 NON-LINEAR REGRESSION RESULTS 11 λρ [Gpa...
2014
Determining Organic Kerogen Maturity, Wettability, and Producibility from Induction Dielectric, Resistivity, and Spectroscopy Measurements
John C. Rasmus, Dean Homan, Gong Li Wang
Unconventional Resources Technology Conference (URTEC)
... variable maturity with depth and lateral extent. The kerogen maturity and wettability and the petrophysical properties of the host rock will determine...
2021
Three-dimensional seismic geomorphology and analysis of the Ordovician paleokarst drainage system in the central Tabei Uplift, northern Tarim Basin, western China
Hongliu Zeng, Robert Loucks, Xavier Janson, Guizhong Wang, Yiping Xia, Bingheng Yuan, Ligui Xu
AAPG Bulletin
.../s) and a low-API gamma-ray reading, whereas the overlying Silurian sandstone-shale units have a low-velocity (average 4800 m/s) and a high-API gamma-ray reading...
2011
Simulation of Gas Adsorption and Capillary Condensation in Shale Nanopores Using Lattice Boltzmann Modeling
Rui Xu, Maša Prodanović, Christopher J. Landry
Unconventional Resources Technology Conference (URTEC)
... in 1993. Peng-Robinson equation of state (PR-EOS) is incorporated with a specific choice of the pseudopotential function. Rock-fluid interaction...
2018
Q-land Enters Australia: Overview of a Seismic Survey Pilot Study in the Cooper Basin
Tim Bunting
Petroleum Exploration Society of Australia (PESA)
... / / / / / / / / / / - FrequencytHzl Fig. 2. Synthetic sweep response: the O-Land pilot study MD Sweep is shown in blue and the traditional Cooper Basin linear sweep...
2009
AAPG/Datapages Discovery Series No. 7, Multidimensional Basin Modeling, Chapter 8: Integration of Capillary Top-Seal Leakage with Map-Based Fluid-Flow Modeling
Michael, G. E., P. DOnfro, and F. Eilertsen
AAPG Special Volumes
.... 76, p. 840850. The SEMI pseudo-3-D modeling tool uses ray tracing method and equation of state to model phase relationships during hydrocarbon...
2003
VSP: Lessons from Numerical Simulation
M. Suprajitno, S. A. Greenhalgh
Indonesian Petroleum Association
.... The upgoing waves (reflections) are characterised by a negative apparent velocity i.e. time increases with decreasing depth. Note how the upgoing primary...
1985
Varimax-Rotated Visible Derivative Reflectance Spectroscopy of the Utica Shale / Point Pleasant Formation in Ohio, #51678 (2020).
Julie M. Bloxson, Beverly Z. Saylor, Barbara M. Kemeh,
Search and Discovery.com
.... The data were processed with principal component analysis to extract mineral components, which were then verified with quantitative x-ray diffraction...
2020
The Renaissance of Gravity, B.S. Anderson, M.E. Weber, J.E. Bain #40035
Search and Discovery.com
N/A
Methods of Calculating Total Organic Carbon from Well Logs and its Application on Rocks Properties Analysis; #41372 (2014)
S. Z. Sun, Y. Sun, C. Sun, Z. Liu, and N. Dong
Search and Discovery.com
..., showing the characteristics of high acoustic transit time, high resistivity, high gamma ray and low density. As a result, integrated with certain...
2014