Drilling well control parameter intelligent monitoring system

Abstract

The invention relates to a drilling well control parameter intelligent monitoring system which comprises a monitoring part for drilling fluid cycling volume, a monitoring part for drilling fluid inlet and outlet flow, a monitoring part for drilling fluid inlet density, outlet density, drilling temperature, outlet natural gas, and H2S concentration, a monitoring part for wellhead pitshaft flowing fluid level and table torque, and a collection instrument part. All the signals are transmitted into the collection instrument to be collected through an RS485 network cable; after data processing is carried out, the data is transmitted to a drill floor parameter display device and a central station host computer through a wireless data transmission device; the data storage, display and print are carried out by the host computer, and the data is simultaneously uploaded into a data platform processor of an upper-level command center; finally, remote control realtime processing and monitoring are carried out on all the well control parameters of all the drilling crews. The intelligent monitoring system has the beneficial effects of realizing omnibearing, long-distance and timely drilling well control, safe production, and playing better role in preventing the occurrence of accidents such as well kick, loss circulation, blow-out, etc.

Description

technical field [0001] The invention relates to a petroleum safety production monitoring instrument, in particular to an intelligent monitoring system for drilling well control parameters. Background technique [0002] In the process of oil drilling in the oil field, due to the complex downhole geology, especially when entering the water layer or oil and gas layer, the oil, water and gas are brought to the ground together with the drilling fluid, which can reduce the density of the drilling fluid, reduce the well pressure of the liquid column, and the bottom hole pressure is greater than that of the liquid. When the well pressure is high, a large amount of oil and gas will return upward, resulting in major accidents such as blowout, and when faults or karst caves occur at the bottom of the well, the drilling fluid will be lost, causing the well wall to collapse and pipe sticking accidents. Therefore, it is very important to monitor the variation of drilling fluid in real tim...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an intelligent monitoring system for drilling well control parameters to overcome the shortcomings of existing monitoring instruments for well kick and lost circulation such as low precision, poor repeat stability, high false alarm rate, and large error in pump metering flow.

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