| Patent Number |
Title Of Patent |
Date Issued |
| 7363967 |
Downhole tool with navigation system |
April 29, 2008 |
| A downhole tool for use in a well bore comprises an onboard navigation system for determining the location of the tool within the well bore, wherein the tool is moved along at least a partial length of the well bore via an external force. A method of locating a downhole tool in a wel |
| 7322416 |
Methods of servicing a well bore using self-activating downhole tool |
January 29, 2008 |
| A method of servicing a well bore comprises deploying into the well bore a zonal isolation device operable to self-set at a sensed location, and self-setting the zonal isolation device to hold at the sensed location without receiving command communications from the surface, wherein the |
| 7038332 |
Power discriminating systems |
May 2, 2006 |
| The present invention relates to a control system for selectively supplying electrical power in a remote environment. The system comprises a plurality of electrical circuits, each designed to operate over a unique frequency passband. Power transmitted within the frequency passband of |
| 6812811 |
Power discriminating systems |
November 2, 2004 |
| The present invention relates to a control system for selectively supplying electrical power in a remote environment. The system comprises a plurality of electrical circuits, each designed to operate over a unique frequency passband. Power transmitted within the frequency passband of a c |
| 5626192 |
Coiled tubing joint locator and methods |
May 6, 1997 |
| A well pipe string joint locator for attachment to the end of a length of coiled tubing and moved within the pipe string as the coiled tubing is lowered or raised therein is provided as well as methods of using the joint locator. The joint locator is comprised of an elongated tubular |
| 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. |
| 5429190 |
Slick line casing and tubing joint locator apparatus and associated methods |
July 4, 1995 |
| A detector structure is used to sense and log the joints in a downhole jointed tubular structure, such as a well bore casing or production tubing, in a subterranean well. The detector is moved through the jointed tubular structure on an elongated positioning member, representatively a |
| 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 |
| 5172717 |
Well control system |
December 22, 1992 |
| An electrically actuated downhole system for controlling and monitoring the flow of gas from a gas lift petroleum well in which a borehole penetrates at least two spacially separated geological production zones, and at least two strings of parallel tubing extend along the interior of a w |
