Tracer delivery device and method of use thereof

Abstract

The invention discloses a tracer delivery device and a method for using the same. The tracer delivery device is used for monitoring groundwater flow direction, flow velocity and underwater real-time temperature, and can be used in an underground aquifer or groundwater environment suitable for delivery. The tracer is injected at a fixed point; the operation processor receives the electrical signal detected by the tracer injection device through the cable, and issues an operation instruction to the tracer injection device. Through the device of the invention, specific tracers (such as sodium fluorescein and rhodamine, etc., selected according to needs) can be used to monitor and observe the flow direction and velocity of groundwater, and to judge the hydraulic connection between the source hole and the observation hole. At the same time, it can also monitor the water temperature and horizontal inclination angle, observe the development of rock holes or cracks in the inner wall of the borehole in real time, monitor the flow of tracers in the borehole, and provide reliable basic data and video image data for further scientific research.

Description

technical field [0001] The invention belongs to the application field of water resources and groundwater science and engineering, and in particular relates to a tracer injecting device and a using method thereof. Background technique [0002] In order to solve the problems of groundwater resource evaluation and groundwater movement and migration laws, people often roughly regard the underground aquifer as a homogeneous and isotropic seepage field, and schematically describe the groundwater flow direction and velocity according to the groundwater iso-level lines and streamlines. However, this is often quite different from the real situation. In the past, when people tried to inject tracers into confined aquifers or submerged aquifers in upwelling water, because there was no direction-finding device, a large number of observation holes were needed to know the direction of groundwater flow, which wasted time and effort; The inclinometer device requires a separate borehole to m...

AI Technical Summary

Problems solved by technology

[0004] The existing Chinese patent CN201820478809-confined aquifer dispersion test device has the following disadvantages in the content recorded in the patent document: it is necessary to use a drill pipe to bring the hydraulic plug to the specified depth, and connect the high-pressure pipe and the pressure water pump at the same time. Deep confined aquifers are difficult to realize, requiring dozens or even hundreds of times of drill pipe (about 2 meters per time), long test time and high cost;

If the observation hole is upstream of the source hole, the tracer will not be observed, which will also cause the test to fail

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