Automatic measurement system and method for multi-aquifer deep hole stratified pumping test

Abstract

The invention provides an automatic measuring system and method for a layered water pumping test of a deep hole including multiple water-bearing strata. The system comprises a water-bearing stratum packer used for isolating the multiple water-bearing strata, and a data collecting and processing device used for measuring the hydrogeological parameters of different water-bearing strata. The data collecting and processing device comprises an aboveground data processing and displaying unit and an underground data collecting unit, wherein the aboveground data processing and displaying unit and the underground data collecting unit are arranged in a sealed shell. A communication cable of the underground data collecting unit penetrates through the water-bearing stratum packer to stretch into the water-bearing strata underground and is used for collecting dynamic information of the water-bearing strata. The aboveground data processing and displaying unit is used for receiving the dynamic information and further processing the dynamic information so as to generate hydrogeological parameter data. By the adoption of the automatic measuring system and method, the multiple water-bearing strata can be isolated from one another, and the hydrogeological parameters of all the water-bearing strata are measured and displayed in real time; moreover, the measuring range is wide, the sampling frequency is adjustable, and the requirements for the modernization layered water pumping test can be met.

Description

technical field [0001] The invention relates to an automatic measurement system and method for multi-aquifer deep hole layered pumping tests, which are suitable for automatic measurement of hydrogeological parameters in the process of multi-aquifer drilling and pumping tests. Background technique [0002] At present, the acquisition of hydrogeological parameters during the borehole pumping test is mainly divided into two types: manual measurement and automatic measurement. It is required to measure at different frequencies and fill in the form to record. This method is time-consuming and labor-intensive and the measurement accuracy is not high; with the advancement of automatic measurement technology, automatic measuring instruments for hydrogeological parameters have appeared, and the measuring instruments are installed underwater. After setting the sampling time, the instrument automatically stores the groundwater parameters in the instrument after starting, which greatly ...

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Problems solved by technology

[0003] However, for the stratified pumping test with multiple aquifer boreholes, the existing measuring instruments have certain limitations, which are mainly manifested in: the sampling frequency cannot be adjusted and the sampling frequency is low during the whole pumping test process, which cannot meet the Sampling requirements for pumping tests; the measuring range is small, generally around tens of meters, and cannot be used in deep monitoring holes; the structure is complex, and it is not easy to assemble and use with other equipment; the monitoring data cannot be displayed in real time

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