Method for determining the path of a borehole

Details Method for determining the path of a borehole Method for determining the path of a borehole

1990-07-31

1993-08-03

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Well logging

367 25, 364422, G01V 140

Patent

active

052335674

ABSTRACT:
A method is provided for determining the path of a borehole relative to a seismic section. The borehole extends through subsurface formation layers which are seismic boundaries and appear as reflectors in a seismic section. The method comprises generating seismic waves, measuring travel times of said seismic waves between a plurality of surface points and at least one point in said borehole, for which the determination of its position is required, deriving at least one diffraction curve or surface from said travel times, and then mapping said curve or surface upon said seismic section.

REFERENCES:
patent: 3876016 (1975-04-01), Stinson
patent: 4003017 (1977-01-01), Bailey
patent: 4144949 (1979-03-01), Silverman
patent: 4207619 (1990-06-01), Klaveness
patent: 4460059 (1984-07-01), Katz
patent: 4644335 (1987-02-01), Wen
Calvert, R. W.; "Requirements from and for Migration"; 58th Annu. Soc. Expl. Geophys Int. Mtg., Nov. 3, 1988, V-2, pp. 655-656.
Starobinets, A. E.; "Seismic Mapping of Concentrated Diffracting Objects"; Neftegazovaya Geol Geofiz, #2, pp. 41-44, 1982 (Russian).
Sheriff, R. E., "Encyclopedic Dictionary of Exploration Geophysics", 1974, IN 269 S54, p. 141.
Waters, "Reflection Seismology", John Wiley & Sons, Publishers, 1981, pp. 307-341.

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