Liquid density monitoring device and method

Abstract

The invention provides a liquid density monitoring device and method. The device comprises a floater part immersed in a liquid, a connecting component, a potentiometer and a computing component; a floater can float up and down along with variation of density of the liquid, the liquid is contained in a stable groove and has a preset height; the connecting component is located above the floater andis connected with the floater, and the connecting component can synchronously move with the floater; the potentiometer comprises a fixed end on the stable groove and an electrical contact piece contacted and conducted with the fixed end, the electrical contact piece is fixedly connected with the connecting component, the electrical contact piece can slide relative to the fixed end in the verticaldirection, and magnitude of current flowing through the poteniometer is changed along with variation of a relative position between the electrical contact piece and the fixed end; and the computing component is respectively connected with the fixed end and the electrical contact piece and jointly forms a circuit loop with the potentiometer, and the computing component is used for measuring a current value in the circuit loop and converting the current value into a density value. The liquid density monitoring device provided by the invention can monitor the density of the liquid in real time, and liquid density monitoring efficiency can be improved.

Description

technical field [0001] The invention relates to the field of oil drilling, in particular to a liquid density monitoring device and method. Background technique [0002] Oil and gas invasion occurs during the drilling process, and the density of the drilling fluid will change. If the change in the density of the drilling fluid is not monitored in real time, it may cause accidents such as well kicks, which will bury hidden dangers for the safety of well control during the safe production of drilling. , causing unnecessary human and economic losses. [0003] At present, the monitoring of liquid density, such as the monitoring of drilling fluid density, is usually done manually. Specifically, the drilling fluid needs to be manually collected and measured by a drilling fluid density detection device, such as a mud hydrometer (specific gravity scale), to obtain the drilling fluid density. [0004] However, in the prior art, each time the drilling fluid density is measured, the d...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problem that the monitoring efficiency of the current liquid density is low, the present invention provides a liquid density monitoring device and method, which not only realizes the real-time monitoring of the liquid density, but also improves the monitoring efficiency of the liquid density

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