MEASUREMENT OF STRESS IN WORKING STRING DURING WELL COMPLETION OPERATIONS Russian patent published in 2020 - IPC E21B47/01 E21B23/00 

FIELD: measurement.

SUBSTANCE: group of inventions relates to a measuring device for measuring stress in a working string during completion operations when fastening a shell for completing a well in a wellbore, methods of installing a shell for completing a well in a wellbore, a method of assessing the integrity of a suspended device for a blind casing string. Measuring device for measuring stress in a working string during completion operations when fastening a shell for completing a well in a wellbore comprises: housing with multiple recesses on housing outer surface; strain gauges, which detect compression, voltage and torque of the housing, applied to the shell for completion of the well during manipulations with the working string during descent; a hydraulic pulse generator which is configured to transmit data received from the strain gauges to the surface controller by telemetry over the hydraulic pulse communication channel; and through hole, which passes through housing and has constant inner diameter. Strain gauges are located in at least two of multiple recesses and said at least two recesses are located in circumferential direction at equal distance from each other along circumference of housing. Hydraulic pulse generator is located in the other one of the plurality of recesses.

EFFECT: technical result consists in improvement of efficiency of measurement of torque and load applied by working string during well completion operations.

11 cl, 4 dwg