Knowledge analysis of groundwater structure

Classification:

Industry dynamics

Release time:

2021-05-13

【Summary Description】 Water is the "source of life", an important condition for the survival of human beings and all living things, and an indispensable part of the human body.

钻杆

Water is"Source of Life",It is an important condition for the survival of human beings and all living things.,It is an indispensable part of the human body. We often use water in our lives by drilling wells to obtain groundwater. Groundwater exists in the gaps between underground rocks or soils and can be divided into three types: upper water, phreatic water and confined water.

1Upper layer 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, and this water is directly related to the season and climate.

2, diving

The water layer above the water barrier (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.

3Confined water

Confined 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 will laugh when he sees the water coming from the orifice.Yan Kai, once again completed the task of drilling wells.

Key words:

weilida drill