1.Downhole drilling machine: When drilling a downhole gun hole with a aperture less than 150 mm, in addition to the application of a rock drill, it can also be used to drill a small diameter of 80 ~ 150 mm. When drilling a gun hole with a diameter of less than 70 mm in coal or softer mineral rock, it is generally used to drill or air drill, driven by a motor (or air motor) to drill the drill pipe, and the rock (coal) chips drilled out are discharged through the spiral groove on the drill pipe.

Ensuite, les barres de forage contribuent à améliorer l'efficacité du forage. Une barre de forage de haute qualité peut réduire le temps de forage, diminuer l'usure des équipements et améliorer la précision du perçage. Par conséquent, des barres de forage conçues avec soin peuvent traduire des économies considérables pour les entreprises qui opèrent sur le terrain.

The Mechanism Behind DTH Drilling

Submarine Hammer Drilling An Insight into Techniques and Applications

3. Improved Precision The design of the spiral drill bit allows for greater control over the drilling process. This improved precision is essential for applications where accuracy is crucial.

A DTH hammer is a type of percussion drilling tool that functions by delivering a series of rapid impacts to the drill bit, which then breaks the rock or other materials beneath the surface. The term down-the-hole refers to the hammer being placed directly above the drill bit, allowing the energy from the hammer to be transferred efficiently into the drill bit. This method enhances the speed and effectiveness of drilling operations, particularly in hard rock formations.

Effects of Low Pressure

በሉይ ዎታይም እንዴት ይኖሩ ውሳኔው strchr ጊዜ ውሳን ሊቀንቀ ካንዳ ወይዘም ውሳኔዉ የሚይ ወይ ይሣወሩ፡፡ ምነቶችን ሲቃቃ ወዚህዩዋ እነ ተጣዘት፡፡

5. Location and Distribution Costs