Liquid lift method for drilling risers

Details Liquid lift method for drilling risers Liquid lift method for drilling risers

E - Fixed Constructions

21

B

E21B 44/00 (2006.01) E21B 21/00 (2006.01) E21B 21/08 (2006.01)

Patent

CA 2438885

A method for drilling a well below a body of water as disclosed which includes injecting into the well, at a depth below the water surface, a liquid (74) having a lower density than a density of a drilling mud (76) producing a mixture of drilling mud (76) and low-density liquid (74) in the well. The mixture of drilling mud (76) and low-density liquid (74) is withdrawn from an upper end of the well. The drilling mud (76) and the low-density liquid (74) are separated, with at least a portion of the separated low-density liquid (74) returned to the depth below the water surface and at least a portion of the separated drilling mud (76) returned to an upper end of the drill string (60).

L'invention concerne un procédé de forage d'un puits au-dessous des eaux consistant à injecter dans ce puits, à une certaine profondeur au-dessous de la surface de l'eau, un liquide (74) possédant une densité inférieure à la densité d'une boue de forage (76) permettant de produire un mélange de boue de forage (76) avec un liquide de faible densité (74) dans le puits. Le mélange de la boue de forage (76) avec le liquide de faible densité (74) est retiré de l'extrémité supérieure du puits. La boue de forage (76) et le liquide de faible densité (74) sont séparés, au moins une partie du liquide de faible densité (74) séparé étant rejetée au-dessous de la surface de l'eau et au moins une partie de la boue de forage séparée (76) étant rejetée dans l'extrémité supérieure du train de forage (60).

Affiliated with

Also associated with

Rating

Liquid lift method for drilling risers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Liquid lift method for drilling risers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Liquid lift method for drilling risers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1536602