Exploration system for enhancing the likelihood of predicting li

Details Exploration system for enhancing the likelihood of predicting li Exploration system for enhancing the likelihood of predicting li

1980-08-08

1983-02-08

Moskowitz, Nelson

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Land-refraction type

367 58, 367 73, 364421, G01V 130

Patent

active

043731970

ABSTRACT:
The present invention provides for the accurate mapping of shallow crustal earth formations by means for refractive seismic waves to identify structure, elastic parameters and lithology of the strata undergoing survey to indicate deposits of ore, marker rock, economic minerals and the like. After a "roll-along" technique has been used in the field to collect the refraction data and preliminary processing steps undertaken in which there are provisions for (i) accurate separation and determination of seismic shear and compressional responses; (ii) stacking displays that allow for accurate identification of shape of the surveyed strata; and (iii) final depth displays of the refracting bed segments associated with seismic shear and compressional wave velocities as well as Poisson's ratios, in accordance with the present invention, additional processing then occurs. The added processing indicates lithology of the earth formation to a surprising degree based, inter alia, on multi-dimensional space searching techniques.

REFERENCES:
patent: 2267858 (1941-12-01), Dix
patent: 2596463 (1952-05-01), Barthelmes
patent: 2658578 (1953-11-01), Olephant
patent: 3302164 (1967-01-01), Waters et al.
patent: 3946356 (1976-03-01), Anstey
Braile, "Interpretation of . . . Amplitude-Corrected Seismic Refraction Profiles", 1977, pp. 427-439.
Geophysical Maragraph 20, American Geophysical Union, "The Earths Crust".

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