Drill pipe having an internally coated electrical pathway

Details Drill pipe having an internally coated electrical pathway Drill pipe having an internally coated electrical pathway

E - Fixed Constructions

21

B

E21B 17/00 (2006.01) E21B 17/02 (2006.01) E21B 47/12 (2006.01)

Patent

CA 2494871

A method and apparatus for communicating to downhole oil or gas well equipment where the apparatus includes a drill pipe (22) for an oil or gas well including a generally cylindrical hollow drill pipe (22) having an inner diameter (24), an outer insulative coating (28) attached to the inner diameter of the drill pipe (22), and a conductive coating (30) attached to the outer insulative coating (28). The drill pipe (22) further includes an inner insulative coating (32) attached to the conductive coating (30), wherein the outer insulative coating (28), the conductive coating (30) and the inner insulative coating (32) together define an insulated electrical pathway from an upper end (14) of the drill pipe (22) to a lower end (10) of the drill pipe (22).

La présente invention concerne un procédé et un appareil permettant de communiquer avec un équipement de fond de puits de pétrole ou de gaz. L'appareil comporte une tige de forage pour puits de pétrole ou de gaz, creuse et de forme généralement cylindrique. Un revêtement isolant extérieur est appliqué dans l'alésage intérieur de la tige de forage. Un revêtement électroconducteur est appliqué sur le revêtement isolant extérieur. Enfin, un revêtement isolant intérieur et appliqué sur le revêtement électroconducteur. En l'occurrence, le revêtement isolant extérieur, le revêtement électroconducteur, et le revêtement isolant intérieur définissent ensemble un passage électrique isolé, joignant l'extrémité supérieure à l'extrémité inférieure de la tige de forage.

Affiliated with

Also associated with

Rating

Drill pipe having an internally coated electrical pathway does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drill pipe having an internally coated electrical pathway, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drill pipe having an internally coated electrical pathway will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1704672