References
- Guy , J. O. , B. Corley , W. H. Fertl , E. Frost. 1987 . Oriented circumferential acoustic logging evaluates vertically fractured reservoirs . Paper QQ, SPWLA, 28th Annu. Logging Symp., June 2-July 2 , London .
- Guy , J. O. , W. H. Fertl , D. W. Oliver. 1986 . The use of circumferentially propagated acoustic waves in well logging . Paper SPE 15484 presented at the SPE of AIME 61st Fall Meet. , October 5–8, New Orleans .
- Noblett , B. R. , W. H. Fertl , J. O. Guy. 1987 . Recent advances in fracture evaluation . Paper SPE 16226 presented at the SPE Production Operations Symposium, March 8–10 , Oklahoma City .