TOOL FOR IN-SITU ASSESSMENT OF GROUNDWATER AQUIFER QUALITY AND FLOW RATE Russian patent published in 2021 - IPC E21B49/10 

FIELD: hydrogeology.

SUBSTANCE: invention relates to the assessment of aquifers intended for use in agriculture, in particular to devices and methods used to measure in-situ qualitative and quantitative values required to determine whether the aquifer is suitable for agriculture. The tool contains a housing for electronic and electrical control devices, a housing for a hydraulic means controlled by the electrical and electronic devices of the tool, a test body consisting of various hydraulic circuits for controlling various working valves of the tool, and the said test body additionally contains a rear pad on the longitudinal axis of the tool, and the said rear pad is simultaneously controlled by two telescopic pistons that appear from inside the tool when signaled by ground equipment, functionally capable of doing this, and a front pad driven by multiple pistons. In this case, the pistons located below the front pad are moved by one or more electro-pneumatic devices acting together and creating a forward or reverse translational movement of the front pad, and the body of the front pad has a cylindrical opening, which, in turn, contains a probe cup or cylinder and a probe piston, and a cylindrical opening in the body of the front pad forms a chamber, the outlet of which is the beginning of a pipeline line that runs along the tool, and the pipeline line has one or more branches connecting it to various measuring devices and sample storage tanks, a preliminary test chamber, an evacuation pump or hydrostatic well column, while the pipeline line is provided in at least one or more branches, with pressure sensors , temperature, conductivity, pH, calcium, sodium, magnesium and potassium sensors.

EFFECT: reliable determination of the hydrodynamic parameters of each aquifer.

17 cl, 8 dwg