Abstract
AbstractIn many cases, the efficiency and safety of a drilling project depend on the reliability of the electrical and electronic control system, as the process progresses without visual access of the operator. The electrical and electronic system provides and regulates the power supply for the drill, collects and monitors the drill data during the whole operating process, and sends and receives the control instructions and feedback signals. The entire system is composed of the surface, borehole and software subsystems. The surface subsystem serves for operating the drilling process, transmitting the drilling and environmental data, and supplying power for the drill motor and downhole control system. The borehole subsystem is generally intended for borehole data acquisition, drill motor control, power regulation and communication. The software subsystem is designed for human–computer interaction, data processing and storage, and programming of signal acquisition and transmission of data. The control system of Antarctic subglacial drilling rig was tested during the 2018–2019 summer season near Zhongshan Station, East Antarctica, in the course of drilling to the bedrock at a depth of 198 m. It exhibited a steady and efficient performance without significant system failures.
Highlights
A new Antarctic subglacial drilling rig (ASDR) has been developed in the Polar Research Center at Jilin University, China
The control system was tested during the 2018–2019 summer season near Zhongshan Station, East Antarctica in a course of drilling to the bedrock at a depth of 198 m
Three related papers describe the general concept of the drilling rig (Talalay and others, 2021a), Ice and Bedrock Electromechanical Drill (IBED) (Talalay and others, 2021b) and auxiliaries (Fan and others, 2021)
Summary
A new Antarctic subglacial drilling rig (ASDR) has been developed in the Polar Research Center at Jilin University, China. The reliability of the control system determines the performance of the drilling process, and is a critical factor of success for the ice and subglacial bedrock drilling project (Fujii and others, 2002; Mortensen and others, 2007; Panichi and others, 2007). Recent experience with deep electromechanical drilling has shown that the main actions for future improvements should be aimed at increasing the production rate and safety of the drilling process and decreasing the accident rate (Talalay, 2016). This aim could be achieved mainly by using an advanced monitoring and control system for the drilling process. Three related papers describe the general concept of the drilling rig (Talalay and others, 2021a), Ice and Bedrock Electromechanical Drill (IBED) (Talalay and others, 2021b) and auxiliaries (Fan and others, 2021)
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