18670975. FABRICATION OF DOWNHOLE DRILLING TOOLS simplified abstract (SAUDI ARABIAN OIL COMPANY)
Contents
FABRICATION OF DOWNHOLE DRILLING TOOLS
Organization Name
Inventor(s)
FABRICATION OF DOWNHOLE DRILLING TOOLS - A simplified explanation of the abstract
This abstract first appeared for US patent application 18670975 titled 'FABRICATION OF DOWNHOLE DRILLING TOOLS
The abstract describes a method of forming a composite cutter for a downhole drilling tool by mixing polycrystalline diamond powder and cubic boron nitride powder in a specific molar ratio, placing the mixture into a mold, subjecting it to ultra-high-pressure, high-temperature treatment, and then cooling it to form the composite cutter.
- Mixing polycrystalline diamond powder and cubic boron nitride powder in a molar ratio between 0.1 and 0.9.
- Placing the mixture into a mold shaped like a cutter.
- Subjecting the mixture to ultra-high-pressure, high-temperature treatment with specific pressure and temperature ranges.
- Cooling the treated mixture to form a solid composite body, which becomes the composite cutter.
Potential Applications: - Downhole drilling tools in the oil and gas industry. - Mining equipment for hard rock drilling. - Cutting tools for machining applications.
Problems Solved: - Enhanced hardness and wear resistance of the composite cutter. - Improved performance and longevity in demanding drilling environments.
Benefits: - Increased efficiency and productivity in drilling operations. - Cost savings due to longer-lasting cutting tools. - Enhanced precision and accuracy in drilling processes.
Commercial Applications: - Manufacturers of downhole drilling tools. - Suppliers of cutting tools for industrial machining. - Companies involved in mining and excavation operations.
Questions about the technology: 1. How does the specific molar ratio of polycrystalline diamond powder and cubic boron nitride powder impact the performance of the composite cutter? 2. What are the key differences between the composite cutter formed using this method and traditional cutting tools?
Original Abstract Submitted
A method of forming a composite cutter for a downhole drilling tool is described. The method includes: mixing a polycrystalline diamond powder and a cubic boron nitride powder with a molar ratio between 0.1 and 0.9 to form a catalyst-free composite mixture; placing the catalyst-free composite mixture into a mold configured in a shape of a cutter; exposing the catalyst-free composite mixture to an ultra-high-pressure, high-temperature treatment including a pressure between 11 Gigapascals (GPa) and 20 GPa, and a temperature between 1300 Kelvins (K) and 2600 K to form a solid composite body; and cooling the solid composite body to form the composite cutter.
