| Patent Number |
Title Of Patent |
Date Issued |
| 7195083 |
Three dimensional steering system and method for steering bit to drill borehole |
March 27, 2007 |
| A steering assembly includes upper and lower tubular housings connected by a universal joint. An angle cam is disposed on the end of the lower housing and projects into the upper housing. A plurality of wedge members extend axially from the upper housing and into engagement with the angl |
| 7172038 |
Well system |
February 6, 2007 |
| The drilling system includes a work string supporting a bottom hole assembly. The work string including lengths of pipe having a non-metallic portion. The work string preferably includes a composite coiled tubing having a fluid impermeable liner, multiple load carrying layers, and a |
| 6923273 |
Well system |
August 2, 2005 |
| The drilling system includes a work string supporting a bottom hole assembly. The work string including lengths of pipe having a non-metallic portion. The work string preferably includes a composite coiled tubing having a fluid impermeable liner, multiple load carrying layers, and a |
| 6863137 |
Well system |
March 8, 2005 |
| A drilling system includes a work string supporting a bottom hole assembly. The work string including lengths of pipe having a non-metallic portion. The work string preferably includes a composite umbilical having a fluid impermeable liner, multiple load carrying layers, and a wear layer |
| 6843332 |
Three dimensional steerable system and method for steering bit to drill borehole |
January 18, 2005 |
| A steering assembly includes upper and lower tubular housings connected by a universal joint. An angle cam is disposed on the end of the lower housing and projects into the upper housing. A plurality of wedge members extend axially from the upper housing and into engagement with the angl |
| 6607044 |
Three dimensional steerable system and method for steering bit to drill borehole |
August 19, 2003 |
| A steering assembly includes upper and lower tubular housings connected by a universal joint. An angle cam is disposed on the end of the lower housing and projects into the upper housing. A plurality of wedge members extend axially from the upper housing and into engagement with the angl |
| 6598687 |
Three dimensional steerable system |
July 29, 2003 |
| A steering assembly includes upper and lower tubular housings connected by a universal joint. An angle cam is disposed on the end of the lower housing and projects into the upper housing. A plurality of wedge members extend axially from the upper housing and into engagement with the angl |
| 6296066 |
Well system |
October 2, 2001 |
| A drilling system includes a work string supporting a bottom hole assembly. The work string including lengths of pipe having a non-metallic portion. The work string preferably includes a composite umbilical having a fluid impermeable liner, multiple load carrying layers, and a wear layer |
