岩芯钻探技术在深孔钻探中的应用

Key Points

• The research focuses on the application and significance of core drilling technology in deep hole drilling.
• Describes the definition and principles of core drilling technology.
• Introduces common drilling methods such as hard alloy, diamond, and steel particle drilling.
• Discusses drilling tool selection and application, including single action double pipe and core rope tools.
• Explains trajectory control technology, including measurement methods and control tools.
• Reviews flushing fluid technology and core collection and processing techniques.
• Highlights the essential role of core drilling in acquiring underground information.
• Identifies important factors affecting core recovery rates and field handling.
• Establishes guidelines for selecting drilling methods and tools based on their performance.