Safety Considerations

(3) If the drilling rig cannot open the hole smoothly, it should first assign the rock drill to retreat, and then let the rock drill move forward to open the hole from the beginning.

5. Logging Tools Once a borehole is drilled, logging tools are employed to gather geological data. These tools can measure properties such as resistivity, porosity, and density of the surrounding rocks, providing valuable insights into the potential reserves of oil or gas. Accurate logging is fundamental for planning further exploration and extraction activities.

Cleaning method:
Open valve or desilting
Improved design of suction lines or desilting
Lower mounting height

Down-the-hole hammer drilling is a technique used primarily for drilling boreholes in hard rock applications. It employs a pneumatic hammer, situated directly at the drill bit, to deliver high-impact blows that effectively break up the rock. This method contrasts with traditional rotary drilling, where the drill bit operates at the surface and relies on torque and weight to penetrate the ground.

Submarine Hammer Drilling An Insight into Techniques and Applications

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