2.1, geological spiral drill pipe is our company in the geological drill pipe high torque performance on the basis of the use of single spiral.Blade or double spiral blade, prestressed winding, fully automatic welding. The drill pipe body adopts high-grade geologyDrilling special alloy steel pipe, drill pipe joints using high-quality alloy structural steel, by high-pressure forming, vacuum conditioning treatment,It is manufactured by friction welding. It has the characteristics of high bending strength, firm welding and high slag discharge efficiency. withCompared with similar products, the fatigue strength and shear strength are greatly improved.
2.2, our company's production equipment all use advanced automated CNC processing equipment, high production efficiency, quality.The quantity is stable, which effectively ensures the high quality of the mass production of drill pipe products. Differential design of spiral blade structure,The scope of application for drilling geological conditions is wider, and the structural design of high-helix blades is suitable for medium-hard and above ground.The structural design of the low spiral blade is suitable for soft geological conditions and soft coal seams.Drilling and gas drainage drilling construction. It has the characteristics of high efficiency slag discharge, high drilling rate and not easy to get stuck.Advantages. Greatly improve the production efficiency of drilling construction, and is the first choice for efficient drilling construction, energy saving and consumption reduction in coal mines.Products.
2.3. Performance of geological spiral drill pipes with different structures
2.3.1, the number of spiral head: single spiral, double spiral and three spiral of different design, is to meet the differentGeological conditions and drilling process requirements, especially the requirements of slag discharge efficiency and choose to use. single helixCompared with the multi-head spiral, due to the smaller relative screw moment, it has a larger slag discharge thrust and the drilling slag is not easy to stick to the drill pipe.Features. More able to adapt to the wet and sticky drilling environment. Compared to the multi-head spiral design, the number of spiral turns increases and thus.The movement time of the drilling slag in the borehole is relatively long. The multi-head spiral has a higher relative slag discharge efficiency due to the increased screw torque,The movement time of the drilling slag in the borehole is short. The thrust in the spiral becomes relatively low. In the product introduction, follow the customerProcess selection is required.
2.3.2. Spiral form: The main difference between the flat welding type of blades and the vertical welding type of blades is that the flat welding type is due to the rowThe amount of slag is relatively small, suitable for drilling in soft geological conditions that are prone to holding and collapse, greatly reducing collapse.The drill pipe bit is damaged due to the sticking of the hole. The vertical welding type has a large amount of slag discharge and higher efficiency, which is suitable for F1 and above.Drilling construction of medium hard coal and rock geological conditions.
