Number | Name | Date | Kind |
---|---|---|---|
2740945 | Howes | Apr 1956 | |
3050151 | Vogel | Aug 1962 | |
3264606 | Crook et al. | Aug 1966 | |
3652979 | Angelle | Mar 1972 | |
3707700 | Lafont | Dec 1972 | |
3725857 | Pitts, Jr. | Apr 1973 | |
3959767 | Smither et al. | May 1976 | |
4023140 | Siems et al. | May 1977 | |
4415895 | Flagg | Nov 1983 | |
4464739 | Moorcroft | Aug 1984 | |
4509170 | Hollinger et al. | Apr 1985 | |
4545039 | Savit | Oct 1985 | |
4562557 | Parks et al. | Dec 1985 | |
4568932 | Flagg | Feb 1986 | |
4639729 | Savit | Jan 1987 | |
4684947 | Zimmer | Aug 1987 | |
4787069 | Beauducel et al. | Nov 1988 | |
4901289 | Cretin et al. | Dec 1990 |
Number | Date | Country |
---|---|---|
2613496 | Oct 1988 | FRX |
2616230 | Dec 1988 | FRX |
Entry |
---|
B. J. Thorne & H. E. Morris--"An Assessment of Borehole Seismic Fracture Diagnostics"--1988--SPE 18193. |
E. I. Gal'perin--"Vertical Seismic Profiling"--1971--pp. 22-23. |
Brochure--"Multilock Multilevel Digital VSP System"--GCC Association. |
Brochure--"Downhole Seismic Array"--Schlumberger. |