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Keywords: wellbore pressure
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Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition, August 27–29, 2018
Paper Number: SPE-191038-MS
... and materials drilling operation seal assembly active wellbore lubrication pressure wellbore pressure drilling fluid management & disposal The closing pressure and closing volume serve as interrelating hydraulic control system variables. Hydraulic fluid injection into the close chamber functions...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference, August 22–24, 2016
Paper Number: SPE-180537-MS
... will momentarily deform indicating an unsafe change in a drilling margin trend that will eventually lead to a recordable well control event if wellbore pressure is not proactively adjusted. Since, average BHP has continuously remained within drilling margins during this process, any resultant gain or loss...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference, August 25–27, 2014
Paper Number: SPE-170564-MS
... triaxial stress safety factor safety factor packer multistage acid lowest stage Tarim oilfield characteristic string mechanics deformation drilling operation Upstream Oil & Gas Simulation technological characteristic wellbore pressure distribution curve hanger packer initial condition...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference, August 25–27, 2014
Paper Number: SPE-170552-MS
... debris initial wellbore pressure overbalance Upstream Oil & Gas firing head peak compression load packer underbalance gun carrier Technology Conference axial load dynamic underbalance gunshock load wellbore pressure Baumann society of petroleum engineers packer load Wellbore Fluid...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition, July 9–11, 2012
Paper Number: SPE-156321-MS
... and cuttings diameter increases, and it decreases with the increasing of well incline at first, and then increases. Wellbore temperature and pressure have much more influence on cuttings carrying efficiency, and it decreases when the wellbore pressure increases, if keeping the wellbore temperature and pump...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition, November 1–3, 2010
Paper Number: SPE-132689-MS
... the ellipse obtained when both the cohesion strength (τ 0 ) and friction angle (ϕ) are equal to zero. Equation 5 shows that the elliptical shape of the borehole is also dependent on the pore pressure and the wellbore pressure, and not only the far field stresses (σ H ,σ h ) as often assumed. Borehole...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology, September 9–11, 2002
Paper Number: SPE-77237-MS
... wellbore pressure bottom hole pressure drilling operation boundary specific gravity production logging annular pressure drilling rate window liquid flow rate injection rate Introduction The drilling operations where the drilling fluid pressures in the borehole are intentionally maintained...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology, September 7–9, 1998
Paper Number: SPE-47814-MS
... by R. H. Smith. Confining Pressure Effects. The general influence of wellbore pressure and overbalance on drilling rate has been recognized by the industry since the beginnings of research into why penetration rates decreased with increasing well depth, Beginning in 1954 with Woods s, various authors...
Proceedings Papers

Paper presented at the IADC/SPE Asia Pacific Drilling Technology, September 7–9, 1998
Paper Number: SPE-47799-MS
... penetration wellbore pressure series 1 evaluation bit selection different value vibration cutter series 2 resultant force mpa series 4 rock property penetration rate drilling operation reservoir characterization structural geology pdc bit rock lithology drilling equipment drillstring...

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