METHOD OF MEASURING THE LEVEL OF WATER IN THE WELL AND THE DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2018 - IPC G01F23/296 G01F25/00 E21B47/47 

FIELD: test and measurement equipment.

SUBSTANCE: group of inventions refers to acoustic methods of measurement and control and can be used to determine the level of fluid in wells, wells and reservoirs. Method for measuring the water level using an acoustic proximity sensor includes the supply of a sound signal through an open wellhead, the reception of a reflected signal, and the calculation of the time of passage of the depth signal of the water mirror. Before using the level gauge, it is calibrated with a high-precision level, contact type, and corrected by introducing a correction factor, and from the received reflected sound signal, the signal having the largest travel time with the largest amplitude is extracted and the depth calculation is performed using this signal. Apparatus comprises a receiver-emitter located in a common housing and a main device comprising a controller to which an indicator and a charge generator are connected, as well as a radiation scheme, a receiving signal amplifier, a switch, a timer, an ADC, and a memory.

EFFECT: increasing the accuracy of measuring the liquid level in the well by eliminating the effect of interference from clutches and sub-bows changing the diameter of the well on the results of measurements and expanding the nomenclature of funds of a certain purpose.

6 cl, 8 dwg, 1 tbl