Acoustics – Geophysical or subsurface exploration – Seismic source and detector
Patent
1994-08-31
1998-05-05
Eldred, J. Woodrow
Acoustics
Geophysical or subsurface exploration
Seismic source and detector
181122, 3408549, 3408552, 7315216, 7315217, 175 50, G01V 100
Patent
active
057477507
ABSTRACT:
Apparatus and method for determining the location of the source of seismic energy around a well are provided. Multiple seismic receivers, each receiver having orthogonal seismic sensors, are axially spaced on a tool which is capable of sending real-time seismic signals to the surface over conventional wireline. A method for calculating the location with respect to the receivers is also provided, the method employing data from all the sensors and a performance function to minimize error in the determination of location, and a simplified method is provided for determining if a fracture has extended past a selected depth in a formation.
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Bailey Jeffrey R.
Ringo Marion M.
Eldred J. Woodrow
Exxon Production Research Company
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