... 10 2022 3 10 2022 28 11 2022 Copyright © 2022 Society of Petroleum Engineers casing and cementing log analysis artificial intelligence classifier upstream oil & gas well logging interpreter interpretation schema ml prediction impedance prediction accuracy...

... to the lightweight cement. In this case, the well was logged one week after slurry placement. This provided sufficient time for both the neat and lightweight cements to achieve observable acoustic impedance. This is a longer period of time than spacing time for bond logs, but the desire was to achieve optimum...

... minimum point in the well. cement and bond evaluation impedance cement Cement System isolation calculation assumption cement map casing and cementing strength Upstream Oil & Gas CBL objective cement job information cement evaluation operation specialty cement system cement...

... frequency impedance pipe choke SPE Drilling boundary condition elastic pipe resonance load impedance pavlov Magnitude Artificial Intelligence Upstream Oil & Gas pressure fluctuation Transmission Line december 2014 equation university norwegian university conduit In managed...

... drillstring dynamics coefficient oscillator mechanical impedance drill-line vibration drill pipe selection frequency equation resistance oscillation drill line boundary condition transversal drill-line vibration vibration coupling drilling equipment drillstring design longitudinal vibration...

... and the drillstring. Field data examples are given. artificial intelligence lithology reflection coefficient drilling upstream oil & gas completion interface drill string drilling vibration interpretation bit-generated signal drillstring dynamics bandwidth reflection coefficient series impedance...

... bit speed drill pipe selection torque drilling operation compliance top torque rotary table friction torque rotary speed frequency upstream oil & gas drillstring design impedance amplitude inertia spe drilling engineering oscillation artificial intelligence simple pendulum model...

...-domain plot of resonant vibration of 2⅞-in. tubing stuck at 11,000 ft—Case 3. resonant vibration mechanical impedance spe drilling engineering vibration nonresonant system drilling operation impedance oscillator drillpipe resonant frequency frequency natural frequency midway drill...

... distribution along the string remains nearly constant. The current distribution has been resolved numerically by a matrix formulation that takes into account the series or internal impedance of the drill, and a comparison with experimental results has been made. 21 2 1984 8 1 1987 1 5 1986 1...