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News

  • 22
    12
    2020
    What Should Be Paid Attention to When Reaming Rocks?
    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 ...
  • 15
    12
    2020
    Selection of Reamer during Construction
    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...
  • 08
    12
    2020
    Introduction of Roller Bit
    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 ...
  • 01
    12
    2020
    Basic Structure and Working Principle of Tooth Bits
    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 ...
  • 24
    11
    2020
    Classification and Selection of Tooth Bits
    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...
  • 17
    11
    2020
    Rock Reamer Hole Opener - Precautions for Drilling through Reamer
    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...
  • 10
    11
    2020
    A Form of Rock Penetration Drilling
    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...
  • 03
    11
    2020
    Features of Replaceable Hob Type Rock Reamer Hole Opener
    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...
  • 22
    10
    2020
    How to Choose a Reasonable Reamer for Pre-reaming
    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...
  • 15
    10
    2020
    What Kind of Reamer Can be Used for Different Drilling Rigs?
    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...
  • 08
    10
    2020
    Drilling Parameters of the Rig
    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...
  • 01
    10
    2020
    Drilling Assembly Experience in the Construction Process
    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...
  • 22
    09
    2020
    Structural Features of Oil Drill Bit
    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...
  • 15
    09
    2020
    Influence of Bit Pressure on Drilling
    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...
  • 08
    09
    2020
    Effect of Rotational Speed on Drilling
    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...