DOWNHOLE DEVICE FOR MEASURING PRESSURE, TEMPERATURE AND MOISTURE CONTENT Russian patent published in 2025 - IPC E21B47/06 

FIELD: measuring.

SUBSTANCE: invention relates to devices designed to measure parameters of fluid flow (oil, water, gas and their mixtures), such as temperature, pressure, moisture content (downhole sensors), and can be used for analysis of parameters in horizontal wells, including wells with multi-stage hydraulic fracturing (HF). Disclosed is a downhole device for measuring pressure, temperature and moisture content of a fluid flow, which includes two sections connected in series. Geometrical dimensions of the cross section of the second section do not exceed the diameter of the first section. First section is a sealed vessel made in the form of a pipe, inside which there is a communication and control unit, and on the outer surface of which at least one pressure sensor and one temperature sensor are installed, which are connected to the communication and control unit. Inner cavity of the section is filled with a sealed material. Second section includes a system for determining moisture content, which is connected to a communication and control unit and is made with possibility of being washed with a liquid. At the same time inside the device there is a through longitudinal flushing channel and a channel, which has sealed inlet and outlet for arrangement and connection of connection elements of power and communication cables to a communication and control unit, pressure and temperature sensors and a moisture content determination system.

EFFECT: simplification of the device design while simultaneously increasing the reliability of the sensors and the possibility of using the device in contaminated wells.

2 cl, 3 dwg