Conjugate fracture systems and formation stresses in subterranea

Measuring and testing – Borehole or drilling – Downhole test

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33303, 364422, E21B 4900

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047810629

ABSTRACT:
Subterranean fault-related facture systems are located and identified and the direction of action of paleostresses causing the fault-related fracture system can be determined from a record representative of depth, dip angle, and dip direction of subterranean generally planar formation features intersecting a borehole and from information relating to borehole diameter, dip angle, and dip direction.

REFERENCES:
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patent: 4698911 (1987-10-01), Rambow
Friedman, M. Structural Analysis . . . California, Am. Assoc. of Pet. Geologists Bulletin, vol. 53, No. 2, Feb. '69, pp. 367-389.
Zemanek, J. et al., Formation Evaluation . . . Televiewer, Geophysics, vol. 35, No. 2, Apr. '70, pp. 254-269.
Broding, R. A. Volumetric Scanning . . . Borehole, World Oil, Jun. 1982, pp. 100-104.
Broding, R. A. Application of . . . Cement Evaluation, SPWLA 25th Logging Symposium, Jun. 10-13, '84, pp. 1-17.
Wiley, R. Borehole Televiewer-Revisited, SPWLA 21st Logging Symposium, Jul. 8-11, '80, pp. 1-16.
Taylor, T. J. Interpretation and . . . Surveys, SPWLA 24th Logging Symposium, Jun. 27-30, '83, pp. 1-19.

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