Full-automatic well cementation cement slurry quality controlling method and mixing system

Abstract

The invention provides a full-automatic well cementation cement slurry quality controlling method and a mixing system. The method comprises the following steps: the density value is determined according to the well cementation required cement slurry; and a control system automatically controls the inlet amount of cement plaster and clean water through a cement plaster proportional control valve and a clean water proportional control valve respectively according to the determined density value. The mixing system comprises a controller, wherein the controller is connected with a control panel, a densitometer, a clean water flow meter, a piston pump flow meter, the cement plaster proportional control valve and the clean water proportional control valve; the cement plaster proportional control valve is connected with a cement plaster adjusting valve; the clean water proportional control valve is connected with a clean water adjusting valve; and the densitometer feeds a collected cement plaster density signal back to the controller, and the cement plaster proportional control valve and the clean water proportional control valve are controlled by the controller. The full-automatic well cementation cement slurry quality controlling method can realize full automatic control on a slurry mixing process in the well cementation operation, so the slurry mixing efficiency and the well cementation cement slurry quality can be improved.

Description

technical field [0001] The invention belongs to the technical field of oilfield machinery, and in particular relates to a fully automatic cementing cement slurry quality control method and a mixing system. Background technique [0002] During the cementing operation in the oil field, there are strict requirements on the density and quality of the cement slurry. At present, the slurry mixing system used in oil fields can only automatically control the amount of cement ash discharged, and the amount of clean water still needs to be controlled manually. The amount of slurry mixed can only be adjusted based on the experience and intuition of the operator, which is labor-intensive. , the work efficiency is low, and the cement slurry of stable quality cannot be mixed continuously, and the fully automatic control of the slurry mixing process cannot be realized. Contents of the invention [0003] The technical problem solved by the present invention is to provide a fully automati...

AI Technical Summary

Problems solved by technology

At present, the slurry mixing system used in oil fields can only automatically control the amount of cement ash discharged, and the amount of clean water still needs to be controlled manually. The amount of slurry mixed can only be adjusted based on the experience and intuition of the operator, which is labor-intensive. , the work efficiency is low, and the cement slurry with stable quality cannot be continuously mixed, and the fully automatic control of the slurry mixing process cannot be realized.

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