YSM - Leading Chinese excavator spare parts & machinery part supplier.
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YSM - Leading Chinese excavator spare parts & machinery part supplier.
A drill pipe is a seamless steel pipe that composes around 95% of the length of a drill string. For clarity, a drill string is what is used to actually drill into the ground to extract resources. The drill pipe is hollow, which allows drilling fluid to flow freely throughout the pipe and the pumping process to be completed successfully.
Drill pipes are manufactured to transfer drilling torque the entire length of the pipe – often several miles. They are also created to resist pressure changes and need to have the ability to hold the entire weight of the deeper drilling components. Drill pipes are manufactured by welding together the threaded tool joint, the box tool joint and the pin tool joint. These joints are used in the top section of the drill string to pump fluid and transfer torque to the bit.
Drill pipes are manufactured in a variety of sizes and materials, meaning there is a perfect drill pipe for your project. Similar to the API length ranges, there are also groupings of API classes, based on the size and material of the drill pipe. The API classes measure yield strength, tensile strength, the drill-pipe body and the tool joint.
