Real-time monitoring system for hole bottom parameters in deep hole drilling

Abstract

The invention provides a real-time monitoring system for hole bottom parameters in deep hole drilling. The real-time monitoring system at least comprises an information collecting device, a signal transmitting device and a receiving device, wherein the information collecting device and the signal transmitting device are arranged on a drilling rod and are positioned at the hole bottom position, the receiving device is positioned on the earth surface, and information collected by the information collecting device can be transmitted to the receiving device for receiving after being transformed by the signal transmitting device; the information collecting device comprises a pressure sensor which is used for collecting various drilling parameters, a temperature sensor, a pressure torsion short joint and a flowmeter; the signal transmitting device comprises a collecting circuit, a transmitting circuit, a battery which is used for supplying power for a circuit and a pair of internal and external insulation short joints; and the receiving device comprises a signal processing unit which is used for receiving, amplifying, filtering, trapping, AD (Analog to Digital) conversing a signal and a display device which is connected with the signal processing unit through a signal line. According to the real-time monitoring system provided by the invention, the drilling accident during a deep hole drilling process can be reduced, and the drilling efficiency is increased.

Description

technical field [0001] The invention relates to a monitoring system for real-time monitoring of drilling parameters at the bottom of a hole during the drilling process. The system can be widely used in the drilling fields of departments such as geology, petroleum, coal, and metallurgy. Background technique [0002] Drilling technology is the only means to obtain deep underground physical geological data and finally delineate ore bodies. Drilling works take place in deep underground, which is characterized by high investment and high risk. As resource exploration and development work shifts to deep areas on a large scale, the working conditions of the drilling process will become more complicated, and it will be more difficult to control the drilling process based on experience alone. Moreover, in-hole accidents that occur from time to time not only seriously affect drilling efficiency but also cause major economic losses. According to incomplete statistics, in recent years,...

AI Technical Summary

Problems solved by technology

The current drilling parameter monitoring system can only monitor the surface parameters in real time, but in the process of deep hole drilling, the drilling parameters at the bottom of the hole near the drill bit are far from the surface parameters, and the drilling parameters at the bottom of the hole near the drill bit can better reflect the drilling parameters. It is of great significance to optimize drilling and improve drilling efficiency

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