Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Patent
1991-07-26
1994-05-10
Lobo, Ian J.
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Land-reflection type
367 37, 367 47, G01V 100, G01V 128
Patent
active
053114841
ABSTRACT:
In the exploration for petroleum or natural gas, drilling targets are identified by locating local maxima of horizontal gradient in the top-of-geopressure surface of a region of exploration. The probability of finding hydrocarbon deposits is significantly improved where the drilling targets are local maxima of the horizontal gradient in the top-of-geopressure surface which coincide with local maxima of subsurface heat flow in the region of exploration, particularly where the local maxima in the horizontal gradient of the top-of-geopressured surface is concentrated across major fault offsets and are parallel to the predominant strike directions of the faults. The top-of-geopressure surface may be remotely sensed by performing complex trace analysis on reflection seismic traces gathered for the region of exploration to derive corresponding reflection strength attribute traces. The corresponding reflection strength traces are first smoothed and then subject to further complex trace analysis to derive the envelope amplitudes of the smoothed reflection strength traces, which are referred to as second reflection strength traces. The second reflection strength traces are then analyzed to locate an uppermost distinct subsurface boundary between high and low amplitude components thereof. Such a distinct boundary is then identified as the top-of-geopressure surface for the region of exploration.
REFERENCES:
patent: 3898610 (1975-08-01), Pennebaker, Jr.
patent: 4676664 (1987-06-01), Anderson et al.
Pfeiffer et al., "Subsurface Temperature Distributions in S. Texas", 39th Ann. Gulf Coast Ass. Geol Soc and 36th Ann. Symp. Gulf Coast Sect. Mtg. (Corpus Christi, Oct. 1989) Trans v 39, pp. 231-245.
M. T. Taner, F. Koehler, and R. E. Sheriff, "Complex Seismic Trace Analysis," Geophysics, vol. 44, No. 6, (Jun. 1979), pp. 1041-1063.
M. T. Taner and R. E. sheriff, "Application of Amplitude, Frequency, and Other Attributes to Stratigraphic and Hydrocarbon Determination," Seismic Stratigraphy-Applications to Hydrocarbon Exploration: C. E. Payton, Ed., Am. Assoc. of Petr. Geol., Memoir 26, Tulsa, (1977), pp. 301-327.
R. E. Sheriff, M. T. Taner, F. Koehler, D. Frye, "Extraction and Interpretation of the Complex Seismic Trace," Proceedings of the Sixth Annual Conventional of the Indonesian Petroleum Association, May 1977, pp. 305-316.
R. E. Sheriff, M. T. Taner and Kris Rao, "Seismic Attribute Measurements in Offshore Production," OTC 3174, 10th Annual Ocean Technology Conference, Houston, Tex., May 8-11, 1978, pp. 1103-1108.
S. Mastoris, "3D Seismic Interpretation Techniques Define Shallow Gas Sand Reservoirs," Oil & Gas Journal, Jan. 9, 1989, pp. 69-73.
J. S. Farnbach, "The Complex Envelope in Seismic Signal Analysis," Bulletin of the Seismological Society of America, vol. 65, No. 4, Aug. 1975, pp. 951-962.
D. W. Frye and B. B. Crow, "Improving the Odds in Your Offshore Development Program," OTC 2441, Offshore Technology Conference, Dallas, Tex., 1976, pp. 197-200.
T. K. Kan and R. M. Slatt, "Relation of Physical and Seismic Properties of Gulf Coast Shale," Proceedings of the Annual Convention and Exposition of the American Association of Petroleum Geologists, Jun. 3-6 1990, San Francisco, Calif.
D. J. Taylor and R. Q. Foote, "Detection of Geopressured Zones by Seismic-Reflection Method," Geological Survey Professional Paper, vol. 1375, (1982-1983), p. 32.
J. H. Seo, Detecting Abnormal Geopressure Using Seismic Reflectivity, Masters Thesis, University of Texas, Austin, (1978).
J. D. Robertson, H. H. Nogami, Complex Trace Analysis of Thin Beds Geophysics, vol. 49, No. 4, Apr. 1989, pp. 344-352.
J. D. Robetson, H. H. Nogami, Thin Bed Stratigraphy Form Complex Trace Attributes, AAPG Bulletin, vol. 60 No. 5, p. 624 (1982).
J. G. Saha, N. D. J. Rao, M. C. Agrawal On: "Complex Tract Analysis: by M. T. Taner, F. Koehler, and R. E. Sheriff" (Geophysics Jun. 1979, pp. 1041-1063), letter, Geophysics vol. 45 No. 12 1877-1878 (1980).
M. T. Taner, F. Koehler, R. E. Sheriff, Reply by Author to J. G. Saha, N. D. J. Rao, and M. C. Agrawal, letter, Geophysics vol. 45 No. 12, pp. 1877-1878 (1980).
A. E. Barnes, Amplitude and Frequency Analysis of COCORP Deep Seismic Reflection Data, abstract, Dissertation Abstracts International, vol. 51, No. 9, Mar. 1991.
F. Koehler, M. T. Taner, R. E. Sheriff and D. Frye, Extraction and Interpretation of the Complex Seismic Trace: Part I, Computational Procedures, abstract, abstract of papers Zagreb meeting, Geophysics Prospect, vol. 25, No. 3, p. 585 (1977).
R. E. Sheriff, D. Frye, F. Koehler, and M. T. Taner, Extraction and Interpretation of the Complex Seismic Tract Part II, Geologic Interpretation, abstract, abstract of papers Zagreb meeting, Geophysics Prospect, vol. 25, No. 3, p. 585 (1977).
R. E. Sheriff, M. T. Taner, D. Frye and F. Koehler, "Geologic Interpretation of Color Displays of Complex Seismic Trace", Conference Abstract, Am. Assoc. Pet. Geol., Bull., vol. 61, No. 5, pp. 829-830 (1977).
F. Koehler, M. T. Taner, R. E. Sheriff and D. Frye, Extraction and Interpretation of the Complex Seismic Trace: Part I, Computational Procedures, Conference abstract, Geophysics, vol. 42, No. 1, p. 162 (1977).
R. E. Sheriff, D. Frye, F. Koehler, and M. T. Taner, Extraction and Interpretation of the Complex Seismic Trace: Part II, Geologic Interpretation, Conference abstract, Geophysics, vol. 42, No. 1, p. 181 (1977).
F. Koehler, M. T. Taner, R. E. Sheriff and D. Frye, Extraction and Interpretation of the Complex Seismic Trace: Part I, Computational Procedures, Soc. Explor. Gophys., Annu. Int. Meet., p. 60 (1976).
R. E. Sheriff, D. Frye, F. Koehler, and M. T. Taner, Extraction and Interpretation of the Complex Seismic Trace: Part II, Geologic Interpretation, Soc. Explor. Geophys., Annu. Int. Meet., p. 60 (1976).
Anderson Roger N.
He Wei
Lobo Ian J.
The Trustees of Columbia University in the City of New York
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