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The main parameters of the rock reamer operation control are the push-pull force applied to the reamer by the drilling rig (pull force during reverse reaming, thrust force during forward reaming), or ...

Choosing the suitable under reamers hole openers according to the characteristics of the stratum during construction is the main way to improve construction efficiency.In order to adapt to different f...

Ⅰ. Classification of tooth bitsDrilling, exploration, petroleum, drill bits, drilling accessoriesⅡ. The main structural features of tooth bits:1. The use of high-strength and high-toughness carbide ...

Since the first roller cone bit came out in 1909, the tooth bit has been the most widely used in the world. Tri-cone bits are currently the most commonly used bits in rotary drilling operations. This ...

There are many manufacturers of tooth bits, and these drill bit factories provide bits of various types and structures. In order to facilitate the selection and use of roller cone bits, the Internatio...

1. Rock drilling is different from soil drilling. Generally, the cost is higher and the cost is higher. Therefore, the safety of reaming and the reliability of the project must be the highest principl...

1. Rock through directional drillingThe directional drilling of rock crossing engineering mainly includes simple construction method, double wall drill pipe drilling method, pneumatic or hydraulic DTH...

1. This series of drilling tools are suitable for large-diameter traversing projects with heavy loads of large drilling rigs, and suitable for various rock formations.2. The rock reamer hole opener us...

Before pre-expanding, an optimized reaming plan should be formulated, and the maximum reaming diameter and number of reaming should be determined according to the equipment capacity, stratum condition...

1. Advantages of cone type reamer:1) Short processing cycle.2) Suitable for rock reamer hole opener of various diameters (more suitable for small and medium diameters), and suitable for various format...

1. Drill pressureTheoretically, the drilling pressure depends on factors such as formation rock hardness, diameter, drilling speed, drilling rig, drilling tool capacity and drill bit structural streng...

The control of the pilot hole curve is very important. Choose the best combination of drilling tools according to the type of strata crossing. In the rock construction process, for the high strength o...

Oil drill bit is an important tool for oil drilling. It is used to drill oil when extracting oil. Its performance will directly affect drilling quality, drilling efficiency and drilling cost.Structura...

Bit pressure is a necessary condition for rock breaking at the bottom of the well. The size of the bit pressure determines the method and characteristics of rock breaking, which will directly affect t...

Rotation speed indicates how fast a drill bit with a certain diameter rotates, and is the target used to measure the reversal speed during the drilling process. When drilling, the rock breaking condit...