Lightweight Drill Pipe Based on Composite Carbon Fiber Material

Abstract

At present, our country’s drilling platforms mainly use alloy high-speed shafts. Due to the long transmission torque of drill pipes, drill collars and so on, the drill pipes are subjected to excessive torque and torque during operation, which often lead to fracture failure. The working environment of the drill pipe is wet underground, which is easy to corrode due to chemical reaction with the surrounding environment, thus causing the strength of the high-speed shaft to reduce and corrode, accelerating the fracture of the drill pipe, causing a large amount of waste of engineering materials and causing more serious environmental pollution problems. Based on the defects of the metal main shaft mentioned above, carbon fiber material is used as the main material of the high-speed shaft to avoid the corrosion of the main shaft caused by the changeable environment during drilling operation. Meanwhile, it has higher compressive strength, torsional strength and high temperature resistance. The invention can reduce the cost of transportation and installation parts, consume less electric energy during operation, reduce the weight of the drilling platform itself, and reduce a large amount of unnecessary cost in the drilling industry.