Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports
Reexamination Certificate
2006-06-15
2010-06-01
Whittington, Kenneth J (Department: 2858)
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
Using electrode arrays, circuits, structure, or supports
Reexamination Certificate
active
07728596
ABSTRACT:
A sea electrical survey method for hydrocarbon deposits, situated under seabed not exceeding 10 meters of depth, is disclosed, comprising: providing a plurality of multi-channel bottom systems with receiving lines having at least three electrodes and capable to register electromagnetic signals, excitation devices generating a series of computer-controlled alternating-sign pulses, a horizontally positioned dipole, synchronizing the excitation devices and bottom systems, submerging the systems upon the seabed along a predetermined direction, aligning the receiving lines, moving the dipole within the survey zone, excitation of the pulses, registering signals, measuring the potentials difference and the spatial derivatives of the signals during the pulses and the pauses, recording data, analyzing the data with accounting the fields behavior in time and in space simultaneously, determining the environment resistivity and environment polarizability based on a predetermined mathematical model, and compiling the deposit prognosis. Preferable distance, time, and angular parameters are specified.
REFERENCES:
patent: 7109717 (2006-09-01), Constable
patent: 2008/0105425 (2008-05-01), MacGregor et al.
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Constable et al., Marine Controlled-Source Electromagnetic Sounding 2. The Pegasus Experiment, Journal of Geophysical Research, vol. 101, No. B3, pp. 5519-5530, 1996.
Kyasper Vladimir Eduardovich
Legejdo Petr Yurevich
Lisitsyn Evgenij Dmitrievich
Petrov Alexandr Arkadevich
Tulupov Andrej Vladimirovich
Smushkovich Aleksandr
Whittington Kenneth J
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