Groundwater monitoring well dynamic water swirling packing method and packing equipment

Abstract

The invention provides an underground water monitoring well flowing water swirling flow packing method and packing equipment. According to the method, a water pump is placed in a well pipe for pumpingwater, a negative pressure state is presented in a borehole, a water supply pump is used for extracting slurry from a water tank on the ground to inject the slurry into a feeding funnel to form a swirling flow, then pebble materials or clay balls are put into the swirling flow, the swirling flow causes the pebble materials or the clay balls to be in a motion state, the situation that the funnel is blocked due to the precipitation of the pebble materials or the clay balls during rest is prevented, when the swirling flow enters a guide pipe, the water flow in the pipe can also be driven to be in a rotating state, the state can also drive the pebble materials or the clay balls to be in the rotating state, the rotation state enhances the power of the pebble materials or the clay balls to sink, the situation that gaps are blocked due to the accumulation of the pebble materials or the clay balls in the gap between the well wall and the well pipe is prevented, meanwhile, the annular hole canbe uniformly filled with the pebble materials or the clay balls, and the well completion quality is guaranteed.

Description

technical field [0001] The invention relates to the technical field of filling for groundwater monitoring wells, in particular to a filling method and equipment for dynamic water swirl filling in groundwater monitoring wells. Background technique [0002] As a high-quality water source, groundwater is an important water supply source in my country. In 2018, the national groundwater supply exceeded 97 billion m 3 , of which the groundwater supply in Northeast China and North China accounts for more than 50% of the total water supply. Groundwater has become an important determinant of economic development in a region, so it is necessary to monitor groundwater. The most effective measure for groundwater monitoring is to build dedicated groundwater monitoring wells. At present, my country has built more than 20,000 national-level groundwater monitoring wells, and the average monitoring density is only 1 / 500km 2 , the density of monitoring wells is far from meeting the monito...

AI Technical Summary

Problems solved by technology

Once the filling rate of gravel and clay balls is greater than the sedimentation rate, the gravel and clay balls will be congested somewhere, causing the filled gravel and clay balls to fail to reach the designated position

Moreover, once the gravel and clay balls are filled in the well, even if they do not reach the designated position, they cannot be taken out and refilled. Finally, the monitoring well can only be scrapped, causing great economic losses

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