Electricity: measuring and testing – Of geophysical surface or subsurface in situ – For small object detection or location
Reexamination Certificate
2005-10-04
2008-08-12
LeDynh, Bot (Department: 2862)
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
For small object detection or location
C324S326000, C324S337000, C324S354000
Reexamination Certificate
active
07411399
ABSTRACT:
Multiple sources are provided for a transmitter cable for use in electromagnetic surveying. The transmitter cable includes a dipole antenna comprising a pair of spaced apart electrodes mounted on their respective cables. Two antennas may be powered from each source. Alternatively, the outputs of each source are connected to a common antenna pair. A single large power supply may be mounted on a vessel to supply power through the tow cable. Alternatively, a number of power supplies may be provided aboard the vessel, with each power supply having dedicated conductors through the tow cable to power the plurality of current sources.
REFERENCES:
patent: 4617518 (1986-10-01), Srnka
patent: 4633182 (1986-12-01), Dzwinel
patent: 5373301 (1994-12-01), Bowers et al.
patent: 2006/0001428 (2006-01-01), Milne et al.
patent: 2006/0279470 (2006-12-01), Brown
patent: 463263 (1992-01-01), None
patent: 2070345 (1981-09-01), None
patent: 2390904 (2004-01-01), None
patent: 2404444 (2005-02-01), None
patent: 2413851 (2005-11-01), None
patent: 2415785 (2006-01-01), None
patent: 2420855 (2006-06-01), None
patent: WO0214906 (2002-02-01), None
patent: WO2007040743 (2007-04-01), None
Boerner, David E. et al., Orthogonality in CSAMT and MT Measurements, Geophysics, vol. 58, No. 7, Jul. 1993, pp. 924-934.
Chave, Alan D. et al., Controlled Electromagnetic Sources for Measuring Electrical Conductivity Beneath the Oceans, Journal of Geophysical Research, vol. 87, No. B7, pp. 5327-5338, Jul. 10, 1982.
Chave, Alan D. et al., Electrical Exploration Methods in Applied Geophysics vol. 2, Electrical Exploration Methods for the Seafloor, Chapter 12, 1991, pp. 931-966.
Constable, S. et al., Marine Controlled-Source Electromagnetic Sounding, Journal of Geophysical Research, vol. 101, No. B3, Mar. 10, 1996, pp. 5519-5530.
Constable, S. et al., Occam's Inversion: A Practical Algorithm for Generating Smooth Models from Electromagnetic Sounding Data, Geophysics, vol. 52, No. 3, Mar. 1987, pp. 289-300.
Edwards, R. Nigel, On the Resource Evaluation of Marine Gas Hydrate Deposits Using Sea-Floor Transient Electric Dipole-Dipole Methods, Geophysics vol. 62, No. 1, Jan.-Feb. 1997, pp. 63-74.
Edwards, R.N., Controlled Source Electromagnetic Mapping of the Crust, Encyclopedia of Solid Earth Geopysics, ed. James D. Van Nostrand Reinhold, New York, 1989, pp. 127-138.
Yuan, J. et al., Electromagnetic Assessment of Offshore Methane Hydrate Deposits on the Cascadia Margin, American Geophysiscal Union Fall Meeting, San Francisco, 1998, pp. 363-375.
Kearey, Philip, The Encyclopedia of the Solid Earth Sciences, Blackwell Scientific Publications.
Evans, Rob L. et al., On the Electrical Nature of the Axial Melt Zone at 13 Degrees N on the East Pacific Rise, Journal of Geophysical Research, vol. 99, No. B1, Jan. 10, 1994, pp. 577-588.
Flosadottir, A. et al., Marine Controlled-Source Electromagnetic Sounding, Journal of Geophysical Research, vol. 101, No. B3, Mar. 10, 1996, pp. 5507-5517.
U.S. Dept. of Energy Office of Basic Energy Sciences, Division of Engineering and Geosciences, Two and Three-Dimensional Magnetotelluric Inversion, Technical Report: Dec. 1, 1991-May 31, 1994.
Grant, I.S. et al., Electromagnetism, Second Edition, John Wiley & Sons.
Kaufman, A. et al., Methods in Geochemistry and Geophysics, 16.
Kvenvolden, K. et al., A Primer on the Geological Occurrence of Gas Hydrate, Gas Hydrates: Relevance to World Margin Stability and Climate Change, Geological Society, London, Special Publications, 137, 9-30.
MacGregor, L. et al., The RAMESSES Experient-III. Controlled-source Electromagnetic Sounding of the Reykjanes Ridge . . . , Geophys. J. Int. 1998, 135, pp. 773-789.
MacGregor, L. et al., Use of Marine Controlled Source Electromagnetic Sounding for Sub-Basalt Exploration, EAGE 61st Conference and Technical Exhibition, Helsinki, Finland, Jun. 7-11, 1999.
Nekut, A. et al., Petroleum Exploration Using Controlled-Source Electromagnetic Methods, Proceedings of the IEEE, vol. 77, No. 2, Feb. 1989.
Sinha, M. C. et al., Evidence for Accumulated Melt Beneath the Slow-Spreading Mid-Atlantic Ridge, Phil. Trans. R. Soc. Land. A, 355, 1997, pp. 233-253.
Sinha, Martin, Controlled Source EM Sounding: Survey Design Considerations for Hydrocarbon Applications, LITHOS Science Report Apr. 199, 1, 95-101.
Sinha, M. et al., An Active Source Electromagnetic Sounding System for Marine Use, Marine Geophysical Researches 1990, 12: 59-68.
Strack, K. et al., Integrating Long-Offset Transient Electromagnetic (LOTEM) with Seismics in an Exploration Environment, Geophysical Prospecting, 1996, 44, 997-1017.
Tseng, H. et al., A Borehole-to-Surface Electromagnetic Survey, Geophysics vol. 63, No. 5, pp. 1565-1572.
Das, Umesh C., Apparent Resistivity Curves in Controlled-Source Electromagnetic Sounding Directly Reflecting True Resistivities in a Layered Earth, Geophysics vol. 60, No. 1, Jan.-Feb. 1995, pp. 53-60.
Das, Umesh C., Frequency- and Time-Domain Electromagnetic Responses of Layered Earth-A Multiseparation, Multisystem Approach, Geophysics vol. 60, No. 1, Jan.-Feb. 1995, pp. 285-290.
Thompson, Arthur H. et al., U.S. Statutory Invention Registration H1490, Sep. 5, 1995.
Walker, Peter W. et al., Parametric Estimators for Current Excitation on a Thin Plate, Geophysics vol. 57, No. 6, Jun. 1992, pp. 766-773.
Ward, S.H. et al., Electromagnetic Theory for Geophysical Applications, in Investigations in Geophysics: Electromagnetic Methods in Applied Geophysics, ed. Nabighian, Society of Exploration Geophysicists, Oklahoma, 1988.
Yuan, J. et al., The Assessment of Marine Gas Hydrates through Electrical Remote Sounding: Hydrate without a BSR?, Geophysical Research Letters, vol. 27, Aug. 2000, pp. 2397-2400.
Yuan, Edwards et al., Electromagnetic Assessment of Offshore Methane Hydrate Deposits on the Cascadia Margin, MARELEC 1999.
Maurer, Hansruedi et al., Optimized Design of Geophysical Experiments, SEG Paper.
Grant, I.S. et al., Electromagnetic Waves, Chapter 11, pp. 365-407.
Heelan Philip
Reddig Ransom
Griffin Jeffrey E.
Hu Dan C.
LeDynh Bot
Schlumberger Technology Corporation
Ye Liangang (Mark)
LandOfFree
Electromagnetic survey system with multiple sources does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electromagnetic survey system with multiple sources, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electromagnetic survey system with multiple sources will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4018868