System and method for riser recoil control

B - Operations – Transporting – 63 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B63B 35/44 (2006.01) E21B 19/00 (2006.01)

Patent

CA 2406528

A riser recoil control system (10) adjusts tension forces (F1, F2) applied to a marine riser (60), which is attached to an anchored, floating vessel (30) and a wellhead (80). The riser (60) is attached to the vessel (30) using tension forces (F1, F2) asserted by riser tensioners (20). Each tensioner (20) has an air shutoff valve (110), and an orifice-controlled fluid valve (120). A disconnection sensing means (200) provides a disconnect signal when the riser (60) is disconnected from the wellhead (80), which closes the valves (110, 120) and adjusts the tension forces (F1, F2) applied by the tensioners (20). The invention includes a method for adjusting the tension forces (F1, F2) applied to the riser (60), including sensing the disconnect signal and adjusting the tension forces (F1, F2) supplied to the riser (60) by closing the air shutoff valves (110) and partially closing the orifice-controlled fluid valves (120).

La présente invention concerne un système de stabilisation de colonne montante (10) qui adapte les forces de tension (F¿1?, F¿2?) s'appliquant à une colonne montante marine (30), qui est attaché à un navire à flots (30) à l'ancre et une tête de puits (80). La colonne montante (30) est attachée au navire (30) en utilisant les forces de tension (F¿1?, F¿2?) exercées par des tensionneurs (20) de la colonne montante. Chaque tensionneur (20) comporte une vanne d'arrêt pneumatique (110) et une vanne à fluide commandée par l'orifice (120). Un organe de détection de déconnexion (200) fournit un signal de déconnexion lorsque la colonne montante (60) est déconnectée de la tête de puits (80), ce qui a pour effet de fermer les vannes (110, 120) et reprend les forces de tension (F¿1?, F¿2?) produites par les tensionneurs (20). L'invention concerne également un procédé de reprise des forces de tension (F¿1?, F¿2?) appliquées à la colonne montante (60), comprenant la détection du signal de connexion et la reprise des forces de tension (F¿1?, F¿2?) appliquées à la colonne montante (60) du fait de la fermeture des vannes d'arrêt pneumatiques (110) et de la fermeture partielle des vannes à fluide commandées par l'orifice (120).

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 riser recoil control 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 riser recoil control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for riser recoil control will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1889741

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