Mixing apparatus and method of using same

Details Mixing apparatus and method of using same Mixing apparatus and method of using same

E - Fixed Constructions

21

B

E21B 21/06 (2006.01) B01F 3/12 (2006.01) B01F 5/12 (2006.01)

Patent

CA 2727703

An apparatus (1) and a method for admixing an additive for a drilling fluid for use in the trilling of a petroleum well are described. The apparatus (1) includes: a mixing chamber (3) which is connected, in terms of fluid, to an inlet line (5) for drilling fluid, an outlet line (7) for drilling fluid and at least one dosing device (9, 9') for an additive, the dosing device (9, 9') being arranged to supply the additive from a container (11, 11') to the mixing chamber (3) and to form a pressure-tight barrier between the mixing chamber (3) and the container (11, 11'); and a pumping device (13) arranged downstream of the mixing chamber (3), which is arranged to suck drilling fluid through the mixing chamber (3).

La présente invention concerne un appareil (1) et un procédé permettant de mélanger un additif destiné à un fluide de forage en vue dune utilisation lors du forage dun puits de pétrole. Lappareil (1) comprend une chambre de mélange (3) qui est en communication fluidique avec une conduite dadmission (5) pour fluide de forage, une conduite dévacuation (7) pour fluide de forage et au moins un dispositif de dosage (9, 9') d'un additif, le dispositif de dosage (9, 9') étant conçu pour distribuer ladditif à partir dun récipient (11, 11') vers la chambre de mélange (3) et pour former une barrière étanche à la pression entre la chambre de mélange (3) et le récipient (11, 11'); et un dispositif de pompage (13) disposé en aval de la chambre de mélange (3), qui est conçu pour aspirer un fluide de forage à travers la chambre de mélange (3).

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