Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports
Reexamination Certificate
2006-12-12
2006-12-12
Lefkowitz, Edward (Department: 2862)
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
Using electrode arrays, circuits, structure, or supports
C324S333000
Reexamination Certificate
active
07148693
ABSTRACT:
A porous geological formation contains electrolytic fluid. During the geophysical prospecting of the formation, a region of interest of the formation where the electrolytic fluid is found is stimulated with an excitation signal. The excitation signal corresponds to an energy of a first type. The excitation signal is converted in the region of interest into a response signal. The response signal corresponds to an energy of a second type. The response signal is detected. An electric polarisation is applied to the region of interest so as to strengthen the response signal relative to what it would be in the absence of polarisation. The electric polarisation comes about by means of a continuous or quasi-continuous polarising electric field. The polarising electric field is modulated in frequency with a frequency which is low relatively to the excitation frequency.
REFERENCES:
patent: 3599084 (1971-08-01), Bkamjian
patent: 3896413 (1975-07-01), Boyd et al.
patent: 4583046 (1986-04-01), Vinegar et al.
patent: 4658215 (1987-04-01), Vinegar et al.
patent: 5055788 (1991-10-01), Kleinberg et al.
patent: 5594343 (1997-01-01), Clark et al.
patent: 5644231 (1997-07-01), Wignall
patent: 5841280 (1998-11-01), Yu et al.
patent: 6614229 (2003-09-01), Clark et al.
patent: 2002/0105332 (2002-08-01), Rosthal et al.
patent: 2002/0186013 (2002-12-01), Tabarovsky et al.
patent: 0512756 (1992-11-01), None
patent: WO 8601003 (1986-02-01), None
Charara Marwan
Ligneul Patrice
Echols Brigitte L.
Lefkowitz Edward
Schindler David M.
Schlumberger Technology Corporation
White Bryan L.
LandOfFree
Process and device for prospecting a porous geological... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process and device for prospecting a porous geological..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and device for prospecting a porous geological... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3675381