Mining is a long and complicated process. It usually starts with exploration as large sites have to be studied for their suitability to the purpose. Companies must check whether the area has enough potential to merit the tremendous amounts of investment that need to be poured into the project. Various methods are used for these explorations including air core drilling. This is characterized by the use of compressed air to get the samples out of the drill holes. Three bladed steel and sometimes tungsten bits are utilized to drill into unconsolidated ground. This method is employed to enjoy the following benefits:
Cost
This is a preliminary process in finding suitable areas before actual mining can occur. It can be a hit or miss affair. It is difficult for companies to allocate a lot of resources in such a risky study that may cover a wide area. They need something that is cost-efficient. This is exactly what aircore drilling can provide. It is relatively cheap compared to other types of drilling while being perfectly adequate for the goals. After all, the rig will only need air to get the samples out. There are no explosives and other complications to think about.
Sampling
This drilling method is also preferred when people wish to get as pure a sample as they possibly could. Geologists who are studying an area will want to uncover the exact composition of the substances on the ground. They also want to see them physically as they are. Some forms of drilling can alter the character of the particles due to additives and destructive forces. Aircore drilling is more benign so it is possible to maintain the natural state of the samples. This should reveal more interesting information inside the lab once they get the chance to examine what they got.
Rig
The rig used in this drilling method is much smaller than other types of rigs. After all, the depth it needs to penetrate is only about 50 to 60 meters. It is also meant for unconsolidated ground and not fresh rock so the demand on the capabilities is not as high. As such, it is easier for companies to send these over wherever they need to be. The logistics is more simple and the unit itself is more agile. It can quickly move from one point to the next to get multiple samples and cover a wide area in a short span of time.
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