Number | Date | Country | Kind |
---|---|---|---|
88 07460 | Jun 1988 | FRX |
Number | Name | Date | Kind |
---|---|---|---|
1660187 | Ehrat | Feb 1928 | |
3180413 | Willman | Apr 1965 | |
3572436 | Riehl | Mar 1971 | |
3692111 | Breithaupt et al. | Sep 1972 | |
4249604 | Frazier | Feb 1981 | |
4265485 | Boxerman et al. | May 1985 | |
4325432 | Henry | Apr 1982 | |
4390067 | Willman | Jun 1983 | |
4410216 | Allen | Oct 1983 | |
4501326 | Edmunds | Feb 1985 | |
4577691 | Huang et al. | Mar 1986 | |
4598770 | Shu et al. | Jul 1986 | |
4611855 | Richards | Sep 1986 | |
4637461 | Hight | Jan 1987 | |
4662441 | Huang et al. | May 1987 | |
4700779 | Huang | Oct 1987 | |
4705431 | Gadelle | Nov 1987 | |
4718485 | Brown et al. | Jan 1988 | |
4766958 | Faecke | Aug 1988 |
Entry |
---|
Mahony, B. J., "Horizontal Drilling use on the Rise: Why and How", World Oil, Oct. 1988, pp. 45-57, copy in 166-50. |