US 11,680,478 B2
Integrated collar sensor for measuring performance characteristics of a drill motor
Svetozar D. Simeonov, Houston, TX (US); Pralay K. Das, Sugar Land, TX (US); Maxim Nikolayevich Yushko, Houston, TX (US); and Michael Dewayne Finke, Cypress, TX (US)
Assigned to HALLIBURTON ENERGY SERVICES, INC., Houston, TX (US)
Appl. No. 16/645,462
Filed by HALLIBURTON ENERGY SERVICES, INC., Houston, TX (US)
PCT Filed Jun. 30, 2019, PCT No. PCT/US2019/040033
§ 371(c)(1), (2) Date Mar. 7, 2020,
PCT Pub. No. WO2021/002830, PCT Pub. Date Jan. 7, 2021.
Prior Publication US 2021/0404317 A1, Dec. 30, 2021
Int. Cl. E21B 47/01 (2012.01); E21B 47/007 (2012.01); G01L 1/20 (2006.01); G01L 1/22 (2006.01)
CPC E21B 47/01 (2013.01) [E21B 47/007 (2020.05); G01L 1/205 (2013.01); G01L 1/22 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A downhole tool comprising:
a drill motor;
a collar; and
one or more sensors secured within the collar for measuring one or more operational characteristics of the downhole tool including performance characteristics of the drill motor during operation of the downhole tool, the one or more sensors including a first sensor including:
a first substrate,
a plurality of strain gauges integrated into the first substrate and configured to measure axial strains and torsional strains on the collar that are transferred to the first substrate for measuring the one or more operational characteristics of the downhole tool including the performance characteristics of the drill motor;
a printed circuit board (PCB) positioned within the first sensor in proximity to the plurality of strain gauges and integrated into the first substrate, wherein the PCB includes electronics electrically coupled to the plurality of strain gauges and configured to concurrently calibrate the plurality of strain gauges on the first substrate based on a predetermined calibration parameter and control operation of the first sensor in measuring the one or more operational characteristics of the downhole tool; and
a temperature sensor disposed on the PCB within the first sensor in proximity to the plurality of strain gauges and integrated into the first substrate, wherein the temperature sensor is configured to measure temperature at the plurality of strain gauges and the plurality of strain gauges is controlled based at least in part on the temperature at the plurality of strain gauges.