System suitable for automatically acquiring pumping test parameters

Abstract

The invention discloses a system suitable for automatically acquiring pumping test parameters. Comprising a water level measurement unit, a temperature measurement unit, a flow measurement and display unit, a central processing system, a parameter centralized storage unit, a parameter centralized display unit, a flow adjusting device, a signal expansion slot, a power expansion slot, a signal line, a power line and a communication line. The pump flow is adjusted on site through the flow adjusting device to achieve on-site centralized display of different water level drop depths and parameters. And each parameter is in remote signal transmission through a 4-20mA standard signal. The signal expansion slot and the power expansion slot can conveniently adjust the number of measurement parameter channels, each unit adopts a unified power supply for power supply and signal communication, and the system is established in a modularized manner. Single-hole steady flow and non-steady flow water pumping and group hole water pumping test parameter automatic acquisition and storage are realized by expanding the number of channels, the field labor intensity can be greatly reduced, the operation is simplified, and the parameter measurement precision and accuracy are improved. The water pumping test scheme can be conveniently adjusted on site according to the water yield characteristic of the aquifer.

Description

technical field [0001] The present invention relates to water resources investigation and evaluation, hydrogeological investigation and evaluation of various underground mining deposits, groundwater hot water investigation and evaluation, water resources utilization, etc. Unsteady flow pumping and steady flow pumping tests (single hole pumping, group hole pumping) to obtain hydraulic parameters , instrumentation, computer applications and other technical fields. Background technique [0002] Obtaining pumping test parameters is widely used in research fields such as water resource survey and evaluation, hydrogeological conditions in various underground mining deposit exploration, groundwater hot water survey and evaluation, and water resource utilization. In the process of conducting the above research, whether the parameters such as aquifer permeability coefficient (K), unit water inflow (q), original water temperature (T), and geothermal gradient (DT) are obtained in a tim...

AI Technical Summary

Problems solved by technology

The conventional acquisition method is to measure the required parameters by multiple pumping tests, change the pump flow rate to obtain different water level drawdowns, multiple measurements to obtain stable water levels, and multiple measurements to obtain temperature parameters (or temperature measurement at the wellhead). Coordination, external environmental factors, measuring instruments, etc. will cause large measurement errors, and there are many on-site measurement links and tedious labor intensity. The required data cannot be stored automatically, which is not conducive to later offline analysis. Using this system can effectively solve such problems

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