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07
2022-01
07
2022-01
Integral (integrated) pier rough drill pipe-Yiguang Technology
Integral (integrated) pier rough drill pipe, drill pipe joint and drill pipe body are integrated structure, no friction weld, divided into drill pipe inner and outer thickening process. By referring to the structure of the oil drill pipe, the original drill pipe joint and the drill pipe body are connected to the improved integral thickening structure by welding, which eliminates the problem that the performance of the original weld area is difficult to guarantee, and improves the overall performance of the drill pipe. In order to improve the overall strength of the drill pipe, the drill pipe is treated with overall tempering, and the joint is phosphated. The overall fatigue strength and shear strength were significantly improved.
2022-01-07
23
2021-12
Yiguang Science and Technology "Coal Mine Roadway Crawler Loader" Won the Silver Award of Liaocheng City's First "Water City Cup" Industrial Design Competition
2021-12-23
23
2021-12
Yiguang Science and Technology "Coal Mine Roadway Crawler Loader" Won the Silver Award of Liaocheng City's First "Water City Cup"
2021-12-23
22
2021-12
[Staff Care] Strong Winter Solstice Feelings Warm and Benefit Miners
[Staff Care] Strong Winter Solstice Feelings Warm and Benefit Miners
2021-12-22
22
2021-12
16
2021-12
Performance requirements of through-cable drill pipe measured while drilling
The central cable drill pipe is the component with the most complex force and the worst working condition in the process of directional drilling. During the drilling process, the central cable drill pipe shall not only bear the pushing and pulling force exerted by the drilling rig and the counter torque of the screw drilling tool, but also serve as a medium channel to transport mud or other pressure medium to the bottom of the hole. At the same time, during the construction of near-horizontal long drilling and ultra-long drilling, drilling into the lower inclined hole or branch hole will produce additional bending stress, which can easily cause fatigue damage of the drill pipe. The central cable drill pipe is also the signal transmission device between the hole bottom inclinometer unit and the orifice inclinometer, which shall ensure real-time, safe and reduced signal transmission between the hole bottom inclinometer unit and the orifice inclinometer.
2021-12-16
16
2021-12
Four Technical Characteristics of Cable Drill Pipe
The 1. drill pipe body adopts G105 and S135 oil pipe conforming to API standard for production. Through overall heat treatment, the overall mechanical property can be improved and the service life can be prolonged. In order to reduce the connection point of drill pipe and meet the use requirements of narrow space in underground coal mine, the length of drill pipe shall not exceed 3m. And the use of a larger inner diameter of the rod can increase the overall inner diameter of the drill pipe, reduce the loss of liquid kinetic energy in the transmission process, and can reduce the overall quality of the drill pipe. 2. thread structure The force of the thread structure is relatively complex, and fatigue failure or fatigue fracture is prone to occur under the action of various loads such as tension, compression, torsion, and bending. previously made
2021-12-16
