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Papers by fred boadu

Research paper thumbnail of Deriving SPT N-Values from DCP Test Results: The Case of Foundation Design in a Tropical Environment

Geotechnical and Geological Engineering

Research paper thumbnail of Chapter 11 Permeability estimation with an RBF network and Levenberg-Marquardt learning

Handbook of Geophysical Exploration: Seismic Exploration, 2001

Research paper thumbnail of Neural inversion for oil saturation from seismic velocities

SEG Technical Program Expanded Abstracts 2000, 2000

... Title, Neural Inversion For Oil Saturation From Seismic Velocities. Authors, Fred Kofi Boadu,... more ... Title, Neural Inversion For Oil Saturation From Seismic Velocities. Authors, Fred Kofi Boadu, Department of Civil and Environmental Engineering, Duke University. Source, 2000 SEG Annual Meeting, August 6 - 11, 2000 , Calgary, Alberta. Copyright, 2000. ...

Research paper thumbnail of Statistical distribution of natural fractures and the possible physical generating mechanism

Pure and Applied Geophysics PAGEOPH, 1994

ABSTRACT We have fitted field measurements of fracture spacings (from the vicinity of Lake Strom ... more ABSTRACT We have fitted field measurements of fracture spacings (from the vicinity of Lake Strom Thurmond, Georgia, U.S.A.) to the Weibull, Schuhmann and fractal distributions. The fracture spacings follow a fractal and Weibull distribution which implies that they were formed as a result of a repetitive fragmentation process. The limited variation of the fracture density with orientation in the study area suggests that the stress distribution generating these fractures may be uniform.

Research paper thumbnail of Predicting oil saturation from velocities using petrophysical models and artificial neural networks

Journal of Petroleum Science and Engineering, 2001

Research paper thumbnail of The fractal character of fracture spacing and RQD

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1994

Fracturing and fragmentation processes occur on all scales and, hence, may be described in terms ... more Fracturing and fragmentation processes occur on all scales and, hence, may be described in terms of fractals. We examined the fractal dimensions of discontinuity spacing measurements in a fractured rock mass and observed a relation between the fractal dimension and the quality of the rock mass in terms of RQD. RQD tends to increase with a decrease in fractal dimension for a given scanline length. Thus a relatively more-competent fractured rock mass will tend to have a lower fractal dimension and vice versa.

Research paper thumbnail of Determining subsurface fracture characteristics from azimuthal resistivity surveys: A case study at Nsawam, Ghana

Geophysics, 2005

We conducted azimuthal resistivity surveys (ARS) using the square-array configuration to characte... more We conducted azimuthal resistivity surveys (ARS) using the square-array configuration to characterize the subsurface fractured rock mass at selected farmland sites in Nsawam District, Ghana. This study is the first of its kind in Ghana, and it provides useful information for future ...

Research paper thumbnail of Inversion of fracture density from field seismic velocities using artificial neural networks

Research paper thumbnail of Predicting seismic velocity and other rock properties from clay content only

GEOPHYSICS, 2003

... Lincoln F. Pratson * , Anastasia Stroujkova , Damian Herrick * , Fred Boadu * * and Peter Mal... more ... Lincoln F. Pratson * , Anastasia Stroujkova , Damian Herrick * , Fred Boadu * * and Peter Malin * * Duke University, Department of Earth and Ocean Sciences, Durham, North Carolina 27708. E-mail: lincoln.pratson{at}duke.edu, damian{at}eos.duke.edu, malin{at}duke.edu. ...

Research paper thumbnail of Deriving SPT N-Values from DCP Test Results: The Case of Foundation Design in a Tropical Environment

Geotechnical and Geological Engineering

Research paper thumbnail of Chapter 11 Permeability estimation with an RBF network and Levenberg-Marquardt learning

Handbook of Geophysical Exploration: Seismic Exploration, 2001

Research paper thumbnail of Neural inversion for oil saturation from seismic velocities

SEG Technical Program Expanded Abstracts 2000, 2000

... Title, Neural Inversion For Oil Saturation From Seismic Velocities. Authors, Fred Kofi Boadu,... more ... Title, Neural Inversion For Oil Saturation From Seismic Velocities. Authors, Fred Kofi Boadu, Department of Civil and Environmental Engineering, Duke University. Source, 2000 SEG Annual Meeting, August 6 - 11, 2000 , Calgary, Alberta. Copyright, 2000. ...

Research paper thumbnail of Statistical distribution of natural fractures and the possible physical generating mechanism

Pure and Applied Geophysics PAGEOPH, 1994

ABSTRACT We have fitted field measurements of fracture spacings (from the vicinity of Lake Strom ... more ABSTRACT We have fitted field measurements of fracture spacings (from the vicinity of Lake Strom Thurmond, Georgia, U.S.A.) to the Weibull, Schuhmann and fractal distributions. The fracture spacings follow a fractal and Weibull distribution which implies that they were formed as a result of a repetitive fragmentation process. The limited variation of the fracture density with orientation in the study area suggests that the stress distribution generating these fractures may be uniform.

Research paper thumbnail of Predicting oil saturation from velocities using petrophysical models and artificial neural networks

Journal of Petroleum Science and Engineering, 2001

Research paper thumbnail of The fractal character of fracture spacing and RQD

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1994

Fracturing and fragmentation processes occur on all scales and, hence, may be described in terms ... more Fracturing and fragmentation processes occur on all scales and, hence, may be described in terms of fractals. We examined the fractal dimensions of discontinuity spacing measurements in a fractured rock mass and observed a relation between the fractal dimension and the quality of the rock mass in terms of RQD. RQD tends to increase with a decrease in fractal dimension for a given scanline length. Thus a relatively more-competent fractured rock mass will tend to have a lower fractal dimension and vice versa.

Research paper thumbnail of Determining subsurface fracture characteristics from azimuthal resistivity surveys: A case study at Nsawam, Ghana

Geophysics, 2005

We conducted azimuthal resistivity surveys (ARS) using the square-array configuration to characte... more We conducted azimuthal resistivity surveys (ARS) using the square-array configuration to characterize the subsurface fractured rock mass at selected farmland sites in Nsawam District, Ghana. This study is the first of its kind in Ghana, and it provides useful information for future ...

Research paper thumbnail of Inversion of fracture density from field seismic velocities using artificial neural networks

Research paper thumbnail of Predicting seismic velocity and other rock properties from clay content only

GEOPHYSICS, 2003

... Lincoln F. Pratson * , Anastasia Stroujkova , Damian Herrick * , Fred Boadu * * and Peter Mal... more ... Lincoln F. Pratson * , Anastasia Stroujkova , Damian Herrick * , Fred Boadu * * and Peter Malin * * Duke University, Department of Earth and Ocean Sciences, Durham, North Carolina 27708. E-mail: lincoln.pratson{at}duke.edu, damian{at}eos.duke.edu, malin{at}duke.edu. ...

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