Water source 'opposite well' exploitation and reinjection method and exploitation and reinjection system adopted by same

Abstract

The invention belongs to the technical field of hydrological geology and environmental geology, and particularly relates to a water source 'opposite well' exploitation and reinjection method and an exploitation and reinjection system adopted by the same. Two wells of different levels in the same well site are selected in the method, the exploitation quantity of the well with high water taking level and low chloride radicals is increased, a large amount of water enters a water source station, a little amount of water is used for re-injecting the well with low water taking level and high chloride radicals, and the reinjection water quantity is used for increasing the pressure of the bottom of the water taking well and blocking the saline water from moving upwards. The exploitation and reinjection system comprises the water source station (10), an exploitation module, a reinjection module and a connecting module; the exploitation module comprises an exploitation water source well (1), a water lifting pipe (6) and an electric submersible pump (2) entering the exploitation water source well; the reinjection module comprises a reinjection water source well (3), a reinjection pipe (5) stretching into the reinjection water source well (3) and an electromagnetic flow meter (4); and the connecting module is a three-way pipe. By using the conventional exploitation conditions, the protection of the exploitation aqueous layer is realized, and the conventional underground water resource is fully developed.

Description

technical field [0001] The invention belongs to the technical field of hydrogeology and environmental geology, and in particular relates to a water source well "opposite well" mining while reinjection method and a mining reinjection system adopted therefor, which are mainly used in the underground aquifers in coastal areas to store saline water bodies Or the built or new water sources near the brackish and fresh water strata in the underground aquifer in inland areas, and the wells in the water source are used for the development, utilization and protection of groundwater resources in the brackish and fresh water interlaced areas. Background technique [0002] At present, for the coastal areas where groundwater is exploited excessively, the development of groundwater resources is mostly recharged during the wet season, and exploited during the dry season, and the mode of "summer irrigation and winter use" is generally adopted. Although it has a certain inhibitory effect on t...

AI Technical Summary

Problems solved by technology

Although it has a certain inhibitory effect on the movement of salty water on the plane, for some areas where salty and fresh water intersect, due to excessive exploitation, it will inevitably lead to the bottom intrusion of salty water in the vertical direction of the water source well, and the water well will gradually become salinized, resulting in The scrapping of wells and water sources, thereby polluting the underground freshwater resources of the entire aquifer

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