Method for measuring deep groundwater flow rate

A measurement method and groundwater technology, applied in groundwater detection/exploration, fluid velocity measurement, velocity/acceleration/impact measurement, etc., can solve problems such as large limitations, long measurement period, non-recyclable, etc. The effect of interfering with target movement and stabilizing performance

Active Publication Date: 2019-08-20
辽宁省水利水电勘测设计研究院有限责任公司
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Problems solved by technology

[0009] Static water level logging method, accuracy 0.01, non-recoverable, the main principle is Darcy's law, the operation of this method is cumbersome, and the accuracy is not high
Its own limitations are relatively large, and the requirements for geological

Method used

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  • Method for measuring deep groundwater flow rate

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Embodiment Construction

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0032] As attached figure 1 As shown, a method for measuring the velocity of deep groundwater includes the following steps:

[0033] Preliminarily select at least three measurement areas, select drilling points within the measurement area, drill holes at the selected drilling points through the drilling equipment, and stop drilling when water is found at the drilling points;

[0034] Select the required number of casings according to the dr...

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Abstract

The invention discloses a method for measuring deep groundwater flow rate. A hole is drilled in a measuring area, and if water appears in the borehole, drilling is stopped. A measuring device is placed into the borehole from the center of a casing through a measuring tube step-by-step. A collecting device is turned on. The falling position of the measuring tube is observed through a visual camera.When water flow is found, falling is stopped. A rotary centralizer is arranged at the top of the ground to keep the measuring tube in the vertical direction. The direction of the water flow is observed through the visual camera. If the water flow direction is parallel to the measuring device, the measuring tube is rotated, and the value of the flow rate is observed and collected. The steady maximum is the flow direction of the water flow. The upper end of the measuring tube is fixedly on the upper port of the casing through hard connection. The measured water flow is monitored in real time. Due to the convenience of the Dopod principle, a measuring element protruding into an overflowing tube can measure the instantaneous flow rate and the average flow rate. The method provided by the invention can measure deep groundwater and can determine the specific direction of the water flow.

Description

Technical field [0001] The invention relates to the technical field of measuring deep underground fluid data, in particular to a method for measuring the velocity of deep underground water. Background technique [0002] Doppler flow meter has just emerged in our country, and it is not widely used to measure the flow direction of groundwater flow. Since there is no suitable borehole that can be applied to the probe device to measure the size and direction of the fluid using sound waves, its application Conditional judgment still needs to solve many technical problems. If these problems are solved, the Doppler velocity measurement instrument will have higher velocity measurement accuracy, larger velocity measurement range, and stronger anti-interference ability. [0003] Application number: 201610997859.3 discloses an intelligent underground water level measuring instrument, which includes a measuring device casing, connecting wires, a wire sealing cover, a water pressure sensor and ...

Claims

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Application Information

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IPC IPC(8): G01V9/02G01P5/24G01P13/00
CPCG01P5/241G01P13/0006G01V9/02Y02A90/30
Inventor 杨冬鹏佟胤铮那荣越艾存峰王茺郑佳伟秦增平云跃峰王浩宇高亚威金亮董冰王晓琪马路姜宏郭湛湛马秀梅王浩燃鲁远杰高良艳王福峰孟兆武张宜洪任众王琳钟锁蓝张黎方亮周佳锐曹卫东付长剑温延风
Owner 辽宁省水利水电勘测设计研究院有限责任公司
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