E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 21/00 (2006.01) E21B 3/02 (2006.01) E21B 19/16 (2006.01) E21B 21/01 (2006.01) E21B 33/068 (2006.01)
Patent
CA 2267426
A method for drilling wells in which the tubular (5) can be added or removed from the drill string (17) whilst the drill is rotating with the mud and drilling fluids being circulated continuously and kept separated from the environment to reduce pollution. A connector is used with an inlet (15) and outlet (10) for the mud etc. and which incorporates rams (11) to seal off and separate the flow of mud as a tubular is added or removed.
L'invention concerne un procédé pour forer des puits, par lequel le matériel (5) tubulaire peut être ajouté au train (17) de forage ou retiré de ce dernier pendant que le trépan fore la boue en tournant et que des liquides de forage circulent en continu et restent séparés de l'environnement ambiant afin de réduire la pollution. Un raccord présentant une entrée (15) et une sortie (10) pour la boue, etc., est utilisé, ce raccord comportant des mâchoires (11) d'obturateur pour colmater et séparer l'écoulement de boue lorsqu'un matériel tubulaire est ajouté ou retiré.
Coupler Developments Limited
Maris International Limited
Mcfadden Fincham
LandOfFree
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