Breaking hard rocks inside a well is a challenging task that requires specialized equipment and expertise. The process of breaking hard rocks inside a well involves drilling a hole through the rock and then breaking it into smaller pieces using hydraulic hammers or explosives.
Here are the steps involved in breaking hard rocks inside a well:
- Site Preparation: The first step involves preparing the site for drilling. This includes clearing the area and ensuring that the drilling equipment is set up properly.
- Drilling: Drilling is done using a drilling rig that is specifically designed for drilling through hard rocks. The drilling rig is equipped with a drill bit that is made of tungsten carbide or diamond. The drill bit is used to bore a hole through the rock.
- Install Casing: Once the hole has been drilled, a steel casing is installed inside the hole. The casing helps to prevent the walls of the hole from collapsing.
- Breaking the Rock: There are two methods used to break the rock inside the well: hydraulic hammers and explosives.
- Hydraulic Hammers: A hydraulic hammer is a machine that uses hydraulic power to break the rock. The hammer is attached to the end of a long steel rod that is lowered into the well. The hydraulic hammer is then activated, and the force of the hammer breaks the rock into smaller pieces.
- Explosives: Explosives are used when the rock is too hard to be broken using hydraulic hammers. Explosives are placed inside the hole and detonated. The force of the explosion breaks the rock into smaller pieces.
- Clean-Up: Once the rock has been broken into smaller pieces, it needs to be removed from the well. The broken rock is removed using a process called airlifting, which involves pumping air into the well to lift the broken rock to the surface.
In summary, breaking hard rocks inside a well requires specialized equipment and expertise. The process involves drilling a hole through the rock and then breaking it into smaller pieces using hydraulic hammers or explosives. Once the rock has been broken, it needs to be removed from the well using a process called airlifting. By following these steps, contractors can safely and efficiently break hard rocks inside a well.