System and method for well intervention

E - Fixed Constructions – 21 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

E21B 33/035 (2006.01) E21B 33/00 (2006.01) E21B 33/03 (2006.01) E21B 34/02 (2006.01)

Patent

CA 2597887

A system and method is described for well intervention in subsea installed oil and gas wells, comprising a surface vessel (10), or rig, with equipment (22) for handling and controlling a connection string (20) for downhole tools, and also a system (26) for the supply and return of drilling fluid, from where the connection string (20) for the downhole tool runs down in an actual drilling hole (36) of a well on the subsea, where a X-mas tree (12) with associated blowout preventer (16) is arranged on the well, and where a return line (24) for drilling fluid runs up to said system (26) on the surface vessel or the rig. The connecting string (20) for downhole tools runs into the well through open sea without a riser or landing string being fitted, and a removable intervention valve (14) is arranged in the drilling hole (36), where the intervention valve is arranged to function as a testable, temporary barrier.

L'invention concerne un système et un procédé permettant d'intervenir dans des puits sous-marins de pétrole et de gaz. Ledit système comprend un vaisseau (10) ou un appareil de forage se trouvant en surface doté d'un équipement (22) qui permet de manipuler et de commander un train de tubage (20) de connexion pour outils de fond de puits, un système d'alimentation et de retour de fluide de forage à partir duquel le train de tubage (20) descend dans le trou de forage (36) réel d'un puits sous-marin, une tête de puits (12) en production associée à un bloc obturateur de puits (16) étant agencée sur ledit puits, et une conduite de retour (24) pour fluide de forage remontant vers le système (26) sur le vaisseau ou l'appareil de forage se trouvant en surface. Le train de tubage (20) pour outils de fond de puits descend dans le puits en pleine mer sans ajustement d'un tube prolongateur ou d'un train de tige et une soupape d'intervention (14) amovible est agencée dans le trou de forage (36) afin de fonctionner comme une barrière temporaire testable.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

System and method for well intervention does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFCA-PAI-O-1839594

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.