Feb 14, 2008 16:05
16 yrs ago
английский term
RPM (причем тут обороты в минуту?) - что-то другое
английский => русский
Техника
Нефтепромысловые науки и технологии
cementing
Plastic Viscosity (PV) – The measure of
resistance to fluid flow from the amount, type, and
size of solids present - CENTIPOISE
PV = 600 RPM minus 300 RPM
Yield Point (YP) – Resistance to initial flow,
or the stress required to start fluid movement –
(lb force/100 square ft)
YP = 300 RPM - PV
resistance to fluid flow from the amount, type, and
size of solids present - CENTIPOISE
PV = 600 RPM minus 300 RPM
Yield Point (YP) – Resistance to initial flow,
or the stress required to start fluid movement –
(lb force/100 square ft)
YP = 300 RPM - PV
Proposed translations
(русский)
3 +4 | а вот причем | Nik-On/Off |
5 | обороты в минуту | Nico Rhodionoff |
4 | yes - revolutions per minute | PoveyTrans (X) |
Proposed translations
+4
9 мин
Selected
а вот причем
yield point
A parameter of the Bingham plastic rheological model. YP is the yield stress extrapolated to a shear rate of zero. (Plastic viscosity, PV, is the other parameter of the Bingham-plastic model.) A Bingham plastic fluid plots as a straight line on a shear-rate (x-axis) versus shear-stress (y-axis) plot, in which YP is the zero-shear-rate intercept. (PV is the slope of the line.) YP is calculated from 300- and 600-rpm viscometer dial readings by subtracting PV from the 300-rpm dial reading. YP is used to evaluate the ability of a mud to lift cuttings out of the annulus. A high YP implies a non-Newtonian fluid, one that carries cuttings better than a fluid of similar density but lower YP. YP is lowered by adding deflocculant to a clay-based mud and increased by adding freshly dispersed clay or a flocculant, such as lime
http://www.petroleumtimes.com/glossary/index.php?letter=y
A parameter of the Bingham plastic rheological model. YP is the yield stress extrapolated to a shear rate of zero. (Plastic viscosity, PV, is the other parameter of the Bingham-plastic model.) A Bingham plastic fluid plots as a straight line on a shear-rate (x-axis) versus shear-stress (y-axis) plot, in which YP is the zero-shear-rate intercept. (PV is the slope of the line.) YP is calculated from 300- and 600-rpm viscometer dial readings by subtracting PV from the 300-rpm dial reading. YP is used to evaluate the ability of a mud to lift cuttings out of the annulus. A high YP implies a non-Newtonian fluid, one that carries cuttings better than a fluid of similar density but lower YP. YP is lowered by adding deflocculant to a clay-based mud and increased by adding freshly dispersed clay or a flocculant, such as lime
http://www.petroleumtimes.com/glossary/index.php?letter=y
4 KudoZ points awarded for this answer.
Comment: "Спасибо!"
2 мин
yes - revolutions per minute
...
5 дн
английский term (edited):
RPM
обороты в минуту
Вискозиметры, используемые для определения реологических параметров промывочных жидкостей, определяют "вязкость" раствора по углу отклонения металлического цилиндра, находящегося в растворе внутри другого цилиндра, вращающегося с различными скоростями (как правило 600, 300, 200, 100, 6 и 3 оборота в минуту, поэтому и ДНС, и СНС и пластичесая вязкость привязаны именно к оборотам в минуту. Хочу заметить - что Бингамова модель это позапрошлый век в реологии, а в современных моделях, таких как Хершель-Баккли, понятие ДНС (Yield Point) вообще отсутствует.
Something went wrong...