| 11414965 |
Rotating loading tube and angled shaped charges for oriented perforating |
Haifeng Zhao, Luis Rodolfo Medina Pacheco, Wayne Nivens, Jock Munro |
2022-08-16 |
| 8622149 |
Ballistic transfer delay device |
Steven W. Henderson |
2014-01-07 |
| 8051775 |
Detonation to igniter booster device |
Steven W. Henderson, Philip Kneisl |
2011-11-08 |
| 7942098 |
Loading tube for shaped charges |
Chenghua Han, Mark C. Duhon |
2011-05-17 |
| 7661474 |
Connector assembly and method of use |
Jerry D. Campbell, Mark C. Duhon, Geir Arne Melhus, Wayne Nivens, Kjell M. Randeberg |
2010-02-16 |
| 7409993 |
Weight spacer apparatus |
Chenghua Han, Mark C. Duhon, Robert Ferrence, Jerry D. Campbell, Ronald Lutz |
2008-08-12 |
| 7325612 |
One-trip cut-to-release apparatus and method |
James D. Hendrickson, Reginald Francis |
2008-02-05 |
| 7278484 |
Techniques and systems associated with perforation and the installation of downhole tools |
Mark Vella, Joe C. Hromas, Larry Grigar, Steven W. Henderson |
2007-10-09 |
| 7152676 |
Techniques and systems associated with perforation and the installation of downhole tools |
Mark Vella, Joe C. Hromas, Larry Grigar, Steven W. Henderson |
2006-12-26 |
| 6719061 |
Apparatus and method for inserting and retrieving a tool string through well surface equipment |
Laurent E. Muller, Larry Grigar, Steven W. Henderson, Klaus Huber, Rolf Ludolf +1 more |
2004-04-13 |
| 5701964 |
Perforating charge carrier assembly and method |
Jerry L. Walker, James Phillip Lawson |
1997-12-30 |
| 5070943 |
Apparatus and method for perforating a well |
Jerry L. Walker, Jerry D. Motley |
1991-12-10 |
| 4844170 |
Well perforating gun and method |
— |
1989-07-04 |
| 4832134 |
Shaped charge assembly with retaining clip |
— |
1989-05-23 |
| 4716963 |
Apparatus for well completion operations |
Flint R. George, David M. Haugen |
1988-01-05 |
