Fluid mixing system

Details Fluid mixing system Fluid mixing system

B - Operations, Transporting

28

C

B28C 7/04 (2006.01) B28C 7/02 (2006.01) G05D 11/13 (2006.01) E21B 33/14 (2006.01)

Patent

CA 2429292

A method for continuously mixing a borehole fluid such as cement includes using a measurement of the solid fraction of a cement slurry as it is being mixed to determine the ratio of the solid and liquid components to be added to the slurry. A system for mixing the includes a liquid material (water) supply including a flow meter; a solid material (cement) supply; a mixer which receives the liquid and solid materials and includes an output for delivering materials from the mixer to a delivery system; a device for measuring the amount of material in the mixer; and a flow meter in the output; wherein measurements from the flow meters and the device for measuring the amount of material in the mixer are used to control the amount of solid and/or liquid material added to the mixer.

L'invention porte sur un système de malaxage en continu d'un fluide pour forage tel que du mortier consistant mesurer la fraction solide d'un coulis de ciment en cours de malaxage pour déterminer le rapport entre éléments solides et liquides, et la quantité de liquide à lui ajouter. L'invention porte également sur un système de malaxage comportant: une alimentation en eau munie d'un débitmètre; une alimentation en ciment; un malaxeur recevant l'eau et le ciment et présentant une sortie de décharge fournissant le matériau malaxé à un système de distribution; un dispositif de mesure de la quantité de matériau présente dans le malaxeur; et un débitmètre placé sur la sortie. Les indications des débitmètres et du dispositif de mesure de la quantité de matériau présente dans le malaxeur servent à réguler les quantités d'eau et de ciment ajoutées au malaxeur.

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