| Patent Number |
Title Of Patent |
Date Issued |
| 6619388 |
Fail safe surface controlled subsurface safety valve for use in a well |
September 16, 2003 |
| The present invention is a surface controlled subsurface safety valve (SCSSV) for use in a well, preferably a hydrocarbon producing well. The SCSSV comprises a valve body having a longitudinal bore for fluid to flow through, a bore closure assembly, a pressure balanced drive assembly, an |
| 5485745 |
Modular downhole inspection system for coiled tubing |
January 23, 1996 |
| A downhole inspection tool is attached to the lower end of a length of coiled tubing having an electrical/fiberoptic cable threaded through the center. The coiled tubing carries a flow of optically clear and/or acoustically homogeneous fluid from a supply of such fluid at the surface. |
| 5419188 |
Reeled tubing support for downhole equipment module |
May 30, 1995 |
| A system for the inspection of a well borehole and the formation around the borehole. The system includes a sealed tubing at the lower end of which is mounted a fiberoptic telemetry module which receives various sensor modules for transmissions of sensed information to the surface. The |
| 5275038 |
Downhole reeled tubing inspection system with fiberoptic cable |
January 4, 1994 |
| A system for the inspection of a well borehole and the formation around the borehole. The system includes a pair of concentric reeled tubings for injecting a pair of fluids into a wellbore through a wellhead, one of said fluids being an optically transparent or acoustically homogenous fl |
