№ 1 (01) 2011.
2011
"Oil. Gas. Innovations ╩№ 1 / 2011
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MAIN ISSUE: VII International Scientific and Practical Conference Ashirovskie reading
WELL DRILLING
Numerical simulation of the vibration mode of BHA in stick-slipr drilling bits
Nurgaleev AR Tikhonov VSNurgaleev AR, Tikhonov VS {slide = details} PDC Numerical Modeling of BHA Fluctuations at STICK-SLIP Mode While Drilling with PDC Drill Bits {tab = Abstract} We study the torsional and longitudinal vibrations of the drill string (BC), including the layout of BHA (BHA ), the relationship between them is established through interaction with the rock bit during the cutting process and due to friction. The computer program STICK-SLIP, which allows to perform calculations non-linear oscillations BC in the time domain in the "freeze-slip" bit PDC. {Tab = Abstract} The authors consider the rotating and longitudinal fluctuations of a drill column (DC), including bottom-hole arrangement (BHA), relation between which is established during the interaction between the drill bit and the rock during rock cutting process and the influence of friction. STICK-SLIP software, allowing to perform the calculations of non-linear drill column fluctuations in an intermediate area at a mode "stick-slip" of PDC drill bit has also been developed. {Tab = About the Authors} Nurgaleev AR, VS Tikhonov, Ph.D. / ZAO "Aquatic" (A Weatherford Co), Moscow / {tab = keywords} rotary drilling, modeling, drill string, torsional and longitudinal vibrations, a chisel, a computer program STCK-SLIP. {Tab = Key words} rotary drilling, modeling, drill column, rotating and longitudinal fluctuations, drill bit, STICK-SLIP software.