E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 21/01 (2006.01) B01D 21/00 (2006.01) B01D 24/00 (2006.01) E21B 7/12 (2006.01)
Patent
CA 2726445
There are described a method and a device for recovering drilling fluid which is used in connection with the provision of a subsea well (10), in which the drilling fluid is circurlated from a vessel (20) on a sea surface (21) via a drill string (12) and out through a drill bit (12') into an annulus (13) which is defined by a borehole and the drill string (12), the device including: a filtering device (1) which is connected, in respect of fluid, to said annulus (13) and which is arranged to contain drill cuttings (4) and drilling fluid; and a fluid line (7) which extends from a portion of the filtering device (1) to the vessel (20), the fluid line (7) being arranged to carry drilling fluid which has been separated from the drill cuttings (4) back to the vessel (20).
L'invention porte sur un procédé et un dispositif de récupération de fluide de forage utilisé pour le forage d'un puits sous-marin (10), le fluide circulant depuis un navire (20) de surface (21) via un train de tiges (12) et ressortant à travers le trépan (12') dans un espace annulaire (13) délimité par le puits et le train de tiges (12). Le dispositif comporte: un dispositif de filtrage (1) relié pour ce qui concerne le fluide audit espace annulaire (13), et conçu pour contenir les déblais de forage (4) et le fluide de forage; et une conduite de fluide (7) reliant une partie du dispositif de filtrage (1) au navire (20), ladite conduite (7) retournant le fluide de forage séparé des déblais de forage (4) au navire de surface (20).
Gowling Lafleur Henderson Llp
Ott Subsea Bag Technology As
LandOfFree
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