DEVICE FOR MEASURING DRILLING MUD PRESSURE IN WELL Russian patent published in 2020 - IPC E21B47/06 G01L7/00 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil and gas industry, and particularly to measurement of well drilling parameters. Device comprises a housing with a pressure converter installed therein, oscillation drive and pickup assemblies, a power supply, a communication line of the bottomhole with the well mouth, pressure transducer is made in form of a tuning fork resonator, one branch of tuning fork is hollow in cross section in the form of an ellipse, wherein minor axis of ellipse is parallel to vibration direction of second branch, and the first branch through the branch pipe through the membrane is connected to the annular space of the well and frequency of oscillations of this branch is equal to the vibration frequency of the second branch, device is equipped with a microprocessor rigidly fixed in the housing, the output of which is connected to the communication line of the bottomhole with the well head.

EFFECT: creation of reliable and accurate device for drilling mud pressure control directly in the process of drilling in the well.

1 cl, 1 dwg