Cge Heat Treated Nq 3m Wireline Core Drill Rod Dcdma Standard

Yes. This drill pipe is equipped with a rope core extraction system. There is no need to pull the entire drill pipe out of the hole. Only the inner tube for core extraction can be retrieved through the retrieval device. This significantly reduces the frequency of pulling and setting, and compared to conventional drill pipes, it can save more than 60% of auxiliary working hours, significantly improving the overall drilling efficiency.

The NQ drill pipe adopts standard 1:22 conical precision threads. The disassembly is smooth and the alignment is accurate. In addition, the rope core extraction process significantly reduces the number of drill pipe disassembly and assembly, effectively avoiding the loss of time caused by frequent disassembly, and is suitable for continuous construction of medium and deep holes of several kilometers.

The NQ drill pipe has a reasonable inner diameter size and the matching core extraction assembly has good fluidity. Combined with the dedicated retrieval tools, the core can be quickly handled when blocked, and the fault can be resolved without raising the drill pipe, avoiding long-term drill pipe stoppage.

Yes. The rod body and the joint are made of 4130 alloy material. The joint threads are surface hardened for hardening treatment. The hardness difference between the male and female threads forms a reasonable hardness difference, effectively preventing sticking, and resisting wear. Under normal circumstances, the core take rate can reach over 95%, meeting the sampling standards for geological exploration.

Yes. The process significantly reduces the pulling and sweeping operations, reduces the abnormal wear of the drill pipe outer wall, threads, and diamond drill bits, extends the service life of the entire drilling tool set, and reduces long-term operation costs.