MULTIPLE SENSOR DEVICE WITH DIFFERENT PARAMETERS TO MONITOR THE RESERVOIR FLOW PROFILE BY MULTIPLE METHODS Russian patent published in 2021 - IPC E21B23/00 E21B47/10 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the oil and gas industry and can be used in geophysical surveys of wells. The device with many sensors with different parameters is a stationary system for monitoring the production of reservoirs in directional and horizontal wells (fields) for long-term monitoring of the reservoir along the inflow profile. The device includes a variety of sensors with different parameters to control the operation of reservoirs using many methods: thermometry, thermal indication of inflow, noise logging, flow measurement, pressure, moisture logging, resistivity logging, density logging with an accurate reference to the depth of the borehole using natural rock radioactivity (gamma background) and collar locator. The device includes a ground recorder, a hermetically sealed cable entry into the borehole, a device propeller and a multi-sensor borehole device that is lowered into the borehole on a geophysical cable before installing a production pump. The device allows obtaining information about the formation profile by many methods with precise reference to the depth of the well without moving the multi-sensor device by simultaneously reading data from the sensors of the same name. The device has a downhole multi-sensor device with a length of 50 to 150 meters, which includes many sensors with different parameters. Sensors of the same name are spaced from each other along the entire length of the device at a distance from 0.4 to 20 meters. The device is assembled from rigidly coupled modules with a length of 1 to 5 meters.

EFFECT: increasing the information content of the data, increasing the efficiency and reliability of the device.

1 cl, 3 dwg