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Drilling wells requires a deep understanding of groundwater and its types
Release time:
2018-07-17
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Diamond drill bit drilling wells have replaced the traditional low-efficiency artificial well drilling, water below the water level has become groundwater, which is formed by the surface of the water through infiltration into the ground below. The water on the ground includes all water resources such as rivers, rivers, lakes, etc. It is necessary to drill wells to transport groundwater to the ground by pumping pressure. In-depth understanding of groundwater and its types is of great help to successfully drill wells. Groundwater exists in the gaps between underground rocks or soils and can be divided into three types: upper water, phreatic water and confined water. 1, the upper layer of water closest to the surface of the water, direct contact with the atmosphere and surface water, this layer
Diamond drill bit drilling wells have replaced the traditional low-efficiency artificial well drilling, water below the water level has become groundwater, which is formed by the surface of the water through infiltration into the ground below. The water on the ground includes all water resources such as rivers, rivers, lakes, etc. It is necessary to drill wells to transport groundwater to the ground by pumping pressure. In-depth understanding of groundwater and its types is of great help to successfully drill wells.
Groundwater exists in the gaps between underground rocks or soils and can be divided into three types: upper water, phreatic water and confined water.
1, upper water
The water closest to the surface is in direct contact with the atmosphere and the water on the surface. This layer of water can directly exchange substances with the material on the ground and is not suitable for direct drinking. It is the gravitational water that exists above the local aquitard in the gas zone, and is generally not widely distributed. It is the groundwater that is blocked by the local aquitard when precipitation or surface water seepage. This water is directly related to the season and climate.
2, diving
The water layer above the first water-resisting layer (completely impermeable rock layer or soil layer, etc.) interacts directly with the upper water, so it is also vulnerable to the pollution of the ground environment. The advantage of this layer of water is that it is relatively easy to obtain. In most areas, the water source of this layer is obtained by manual drilling, and diamond drill bits are not required to drill into rock formations or soil.
3, confined water
Confinement water is filled with water layer between two aquifers, due to the blocking of aquifers, surface pollutants can not completely penetrate into the water layer, so the application of this kind of water source is relatively healthy. Hydrogeological well drilling is to extract this kind of water source, drill through the water-resisting layer through the diamond drill bit, and pump it to the ground for people's life irrigation.
Since the geological drilling rig needs to reach the confined water layer when drilling wells with gold diamond drill bits, the sign of judging whether the water well can supply water stably is that when the drill bit drills into the water layer, there will be a relatively large water pressure overflow from the orifice, mainly due to the high water pressure of the confined water in a relatively closed space. Therefore, the well drilling master would smile when he saw the water coming from the orifice and completed the drilling task of the well again.
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