caa a22 4500 606226079 CHVBK 20210128101151.0 cr unu---uuuuu 210128e20150701xx s 000 0 eng 10.1007/s10553-015-0603-z doi (NATIONALLICENCE)springer-10.1007/s10553-015-0603-z Development and Use of a Downhole System for Measuring Drilling Engineering Parameters [Elektronische Daten] [Ma Tian-shou, Chen Ping] A system capable of operating in downhole conditions at depths of several thousand meters is developed for measuring drilling engineering parameters (DEP) in real time. The aim is to monitor DEP during drilling, including the weight on the drill bit (WOB), torque on the drill bit (TOB), and lateral force on the drill bit. The design of the structure and parameters of the sensors, calibration of the sensors, and the field test results are described. Four separate strain gages and a measuring system are designed to measure DEP in the downhole during drilling in real time. The field tests show that the designs are sound. The measured axial force is greater than the calculated value, which means that the real WOB is higher than the logging WOB and the real TOB is greater than the logging torque. Thus, the survey instruments can meet the requirements for rotary steerable drilling and conventional drilling. The measured WOB and TOB data can also be used to analyze drill string vibrations. Springer Science+Business Media New York, 2015 measurement of downhole parameters during drilling nationallicence drilling engineering parameters (DEP) nationallicence weight on bit nationallicence torque on bit nationallicence lateral force on bit nationallicence Tian-shou Ma Southwest Petroleum University, Chendu, China aut Ping Chen Southwest Petroleum University, Chendu, China aut Chemistry and Technology of Fuels and Oils Springer US; http://www.springer-ny.com 51/3(2015-07-01), 294-307 0009-3092 51:3<294 2015 51 10553 https://doi.org/10.1007/s10553-015-0603-z text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10553-015-0603-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Tian-shou Ma Southwest Petroleum University, Chendu, China aut NATIONALLICENCE 700 1- Ping Chen Southwest Petroleum University, Chendu, China aut NATIONALLICENCE 773 0- Chemistry and Technology of Fuels and Oils Springer US; http://www.springer-ny.com 51/3(2015-07-01), 294-307 0009-3092 51:3<294 2015 51 10553