Acoustic logging method for determining the dip angle and dip di

Details Acoustic logging method for determining the dip angle and dip di Acoustic logging method for determining the dip angle and dip di

1990-01-18

1990-10-09

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Well logging

367 69, 33303, G01V 140

Patent

active

049624903

ABSTRACT:
A deviated borehole penetrating a subsurface formation and intersected by a formation fracture is surveyed with a borehole televiewer acoustic logging system. Relative fracture dip angle and dip direction calculated from such survey with respect to the borehole axis is transformed into a true fracture dip angle and dip direction with respect to the vertical of the earth's coordinate system.

REFERENCES:
patent: 3369626 (1968-02-01), Zemanek, Jr.
patent: 3668619 (1972-06-01), Dennis
patent: 3718204 (1973-02-01), Groenendyke
patent: 3728672 (1973-04-01), Dennis et al.
patent: 4780857 (1988-10-01), Lyle et al.
patent: 4781062 (1988-11-01), Taylor
"Automatic Computation of Dipmeter Logs Digitally Recorded on Magnetic Tapes", Moran et al., pp. 771-782, Petroleum Transactions, Jul. 1962.

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