Rope coring drill pipe is a kind of drill pipe that can be used to obtain core without lifting the drill. Its characteristics are "three high and one low", namely, high drilling rate, long life of diamond bit, high utilization rate of time, low labor intensity of workers, so it is widely used in geological prospecting, coal field exploration and other fields.In the whole set of drilling tools, the most important and valuable one is the drill pipe. The quality of the drill pipe is directly related to the advantage of coring drilling, and it is also crucial to the accurate acquisition of geological data and the control of drilling cost.
