Well logging apparatus and method: synthetic logs and synthetic

Details Well logging apparatus and method: synthetic logs and synthetic Well logging apparatus and method: synthetic logs and synthetic

1975-03-17

1981-10-06

Birmiel, Howard A.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Well logging

364422, 367 35, 367 73, 367 86, 73152, G01V 132, G01V 140

Patent

active

042939330

ABSTRACT:
A borehole investigating device takes measurements of a subsurface earth formation and provides signals forming sonic, formation density or similar logs of the borehole. Additionally, the investigating device measures the dip of seismic signal reflectors traversed by the borehole and provides corresponding dip signals. A seismic section which may or may not include the borehole is selected, and the log and dip signals are combined with signals defining the location of the seismic section with respect to the borehole, to thereby provide synthetic logs for each of a number of virtual boreholes which coincide with selected virtual and/or actual shotpoints of the seismic section. The synthetic log signals are then combined to form a truly two-dimensional synthetic seismogram for the selected seismic section. The synthetically derived signals may be corrected in accordance with a selected geological model of the formation.

REFERENCES:
patent: 3008120 (1961-11-01), Hicks
patent: 3152314 (1964-10-01), Mut
patent: 3241102 (1966-03-01), Peterson
patent: 3466532 (1969-09-01), Kolb
"Interpretation of Velocity Spectra Through an Adaptive Modeling Strategy", Davis, Geophysics, vol. 37, No. 6, (Dec. 1972), pp. 953-962.

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