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The AAPG/Datapages Combined Publications Database

Showing 34,503 Results. Searched 200,756 documents.

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Assessing and processing three-dimensional photogrammetry, sedimentology, and geophysical data to build high-fidelity reservoir models based on carbonate outcrop analogues

Ahmad Ramdani, Pankaj Khanna, Gaurav Siddharth Gairola, Sherif Hanafy, and Volker Vahrenkamp

AAPG Bulletin

... topography part of the mesa. (E) Vertical P-wave geophone before installation. (F) The seismic source: a 500-kg accelerated weight drop (pointed...

2022

Basin Modelling and Diagenetic Effects of Groundwater Migration; #40432 (2009)

Xavier Guichet, and Sylvie Wolf

Search and Discovery.com

... a mass balance equation that describes transport of the dissolved mineral by advection. The prototype predicts cumulative volume changes of minerals...

2009

Porosity Reduction in Sandstone by Quartz Overgrowth

Frederic Leder, Won C. Park

AAPG Bulletin

...: Canadian Mineralogist, v. 6, p. 210-221. Stephenson, L. P., 1977, Porosity dependence on temperature: Limits on maximum possible effect: AAPG Bulletin, v...

1986

Small-Scale Models of Turbidity Currents and the Criterion for Auto-Suspension

G. V. Middleton

Journal of Sedimentary Research (SEPM)

.... In neglecting the effect of viscosity in setting up equation (7), the proviso must be made that the scale of the model be sufficiently large in order...

1966

Condensate Banking Effects on Well Productivity and its Coarse Grid Representation in the Full Field Modeling of the Abadi Field

Masahiko Nomura

Indonesian Petroleum Association

... equation. v Equation 3 provides the (4) where, (5) FND is a permeability retainment factor for non-Darcy effect. If there is no Non-Darcy effect, FND...

2013

AAPG Archie Series, No. 1, Chapter 6: Petrophysical Properties of Thinly Bedded Formations

Q. R. Passey, K. E. Dahlberg, K. B. Sullivan, H. Yin, R. A. Brackett, Y. H. Xiao, and A. G. Guzmán-Garcia

AAPG Special Volumes

...      Non-planar beds      Induction logs and the effect of dip           Transverse isotropy and the conductivity tensor      Archie exponents...

2006

Measurements and Analysis of Settling Velocities of Natural Quartz Sand Grains

Jumpei Baba, Paul D. Komar

Journal of Sedimentary Research (SEPM)

... roundness has no measurable effect on the settling rate. The settling velocity is shown to be a function of grain sphericity. either expressed as the Corey...

1981

Shaly Sand Analysis: Chapter 3

George B. Asquith

AAPG Special Volumes

..., and have a more pronounced effect on log measurements. We conclude, then, that a value for volume of clay (Vcl) that favors clays with high cation exchange...

1990

Progressive Rollover Fault-Propagation Folding: A Possible Kinematic Mechanism to Generate Regional-Scale Recumbent Folds in Shallow Foreland Belts

Fabrizio Storti , Francesco Salvini

AAPG Bulletin

...: Eclogae Geologicae Helvetiae, v. 74, p. 255-275. Taboada, A., J. F. Ritz, and J. Malaveille, 1990, Effect of ramp geometry on deformation...

1996

Conversion Constants for Mahogany-Zone Oil Shale: GEOLOGICAL NOTES

John Ward Smith

AAPG Bulletin

... matter is given in equation 1. Confidence limits at 95 per cent are given for this and subsequent averages. EQUATION (1) Based on the actually...

1966

The Application of PSDM VTI Method to Generate a Velocity Model That Can Solve the Mistacking Problem

Aulia Ahmad Nafis, Hasan Nurudin, Ikhsan Hanurogo, Bagus Sapto M, Ahmad Zaenudin

Indonesian Petroleum Association

... the anisotropic effect simply on the sediment layer. The data processing is divided into two parts namely isotropic PSDM to flatten near offset gather (angle mute...

2018

Combined P and S Waves Survey for Hydrocarbon Exploration

Basuki Puspoputro

Indonesian Petroleum Association

... change shape but not the volume (Robinson 1983, Domenico and Danbom 1987). The equation for the P-wave velocity Vp and S-wave velocity Vs may...

1990

A Modified Approach to Estimating Coal and Coal Gas Resources: Example from the Sand Wash Basin, Colorado

Andrew R. Scott , Naijiang Zhou , Jeffrey R. Levine

AAPG Bulletin

..., ash yield, and gas content. The basic equations used to calculate coal tonnage and coal gas are as follows: [Equation (1)] [Equation (2)] where Ton...

1995

Mantle Creep: Elasticoviscous Versus Modified Lomnitz Law, and Problems of "The New Global Tectonics"

Paul S. Wesson

AAPG Bulletin

..., and thermal parameters of granite, when substituted into the equation describing the effect, gives Q = 200-300, thereby demonstrating its cogency...

1972

LARGE LOOP EM SURVEYS IN THE ATHABASCA BASIN

BRIAN POWELL

Saskatchewan Geological Society

... in tandem with the receiver coil. In this respect it is like the MaxMin system which is used in the shallower parts of the Athabasca Basin...

1990

Diagenesis Through Coupled Processes: Modeling Approach, Self-Organization, and Implications for Exploration

W. Chen, A. Ghaith, A. Park, P. Ortoleva

AAPG Special Volumes

... on composition and temperature can lead to buoyancy-driven flows in a sedimentary basin. Classic studies on this effect were those of Bories and Combarnous...

1990

Appendix A: Considerations for Optimum 3-D Survey Design, Acquisition and Processing

R. Malcolm Lansley

AAPG Special Volumes

... at the hydrophones within the streamer. The effect on the spectral content of the data will depend upon the source and streamer depths, the water depth...

2011

Confinement Effect on the Fluid Phase Behavior and Flow in Shale Oil Reservoirs

Yilei Song, Zhaojie Song, Jia Guo, Dong Feng, Baojun Bai, Yueliang Liu

Unconventional Resources Technology Conference (URTEC)

...Confinement Effect on the Fluid Phase Behavior and Flow in Shale Oil Reservoirs Yilei Song, Zhaojie Song, Jia Guo, Dong Feng, Baojun Bai, Yueliang...

2020

Seismic Techniques in the Alberta Foothills

L. H. Reed

CSPG Special Publications

... reflection project should be investigated for this effect and, if necessary, special shooting be done to verify whether or not the feature is real...

1953

Wave-equation based amplitude versus offset inversion in long time windows, with time-variant wavelets

Dries Gisolf, Peter R. Haffinger

International Meeting for Applied Geoscience and Energy (IMAGE)

...Wave-equation based amplitude versus offset inversion in long time windows, with time-variant wavelets Dries Gisolf, Peter R. Haffinger Wave-equation...

2022

Oil Column Calculations in Stratigraphic Traps

Robert R. Berg

GCAGS Transactions

... size from porosity and permeability data using an empirical equation (Berg, 1970), and then to compute the capillary pressure by an estimate of fluid...

1972

Permeability Estimation in Tight Gas Sands and Shales using NMR … A New Interpretive Methodology; #40522 (2010)

Christopher M. Prince, Deborah Deibler Steele, and Charles A. Devier

Search and Discovery.com

... of this relationship means that pore size can proxy for throat size in any estimation equation. It is an interpretation which honors the petrologic...

2010

Electric Log Interpretation in Exploring for Stratigraphic Traps in Shaly Sands

Howard A. Slack , Carel Otte

AAPG Bulletin

... that, in the case of a water-bearing shaly sand, the static electrochemical component of the spontaneous potential (SPs) is given by: EQUATION (1) where Kt...

1960

Abstract: Azimuthal Fourier Coefficients: A Simple Method to Estimate Fracture Parameters; #90174 (2014)

Jon Downton and Benjamin Roure

Search and Discovery.com

... or angle of incidence and gives similar results to that obtained by the near offset Rüger equation using multi-offset/angle data. Combinations of F.C....

2014

A Hydrodynamic Classification of Grain Shapes

J.P. Le Roux

Journal of Sedimentary Research (SEPM)

.... A modified hydrodynamic shape index given by [1 - (Ds/Dl)]x is proposed, which yields an improved, simplified settling equation applicable to spheroids...

2004

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