AREA |
LAST COUNT DATE |
COUNT |
CHANGE FROM PRIOR COUNT |
DATE OF PRIOR COUNT |
CHANGE FROM LAST YEAR |
DATE OF LAST YEARS COUNT |
UNITED STATES |
5/17/13 |
1769 |
+0 | 5/10/13 |
-217 |
5/18/12 |
CANADA |
5/17/13 |
118 | +5 |
5/10/13 |
0 |
5/18/12 |
USA OFFSHORE |
5/17/13 |
52 |
+2 | 5/10/13 |
+5 |
5/18/12 |
INTERNATIONAL |
04/2013 |
1301 |
+33 |
3/2013 |
+123 |
4/2012 |
World Oilfield Forum
Newtonian Fluid Model
Newtonian fluid model is the simplest rheological model. Let’s describe in the mathematical way, a relationship between shear stress (lb/100 ft2) and shear rate (1/sec), named a consistency curve, is a straight line which passes through the original (see the figure below).…
Added by Rachain Jetjongjit on December 20, 2010 at 1:30am — No Comments
Gel Strength
The gel strength is the shear stress of drilling mud that is measured at low shear rate after the drilling mud is static for a certain period of time. The gel strength is one of the important drilling fluid properties because it demonstrates the ability of the drilling mud to suspend drill solids and weighting material when circulation is ceased.
How can we get…
ContinueAdded by Rachain Jetjongjit on December 12, 2010 at 11:30pm — No Comments
Yield Point (YP)
Yield Point (YP) is resistance of initial flow of fluid or the stress required in order to move the fluid. You can simply say that the Yield Point (YP) is the attractive force among colloidal particles in drilling mud.
Practically, you can calculate the YP by this following formula.…
ContinueAdded by Rachain Jetjongjit on December 10, 2010 at 10:00pm — No Comments
Plastic Viscosity (PV)
Plastic Viscosity (PV) is the resistance of fluid to flow. In the field, we can get the PV from a viscometer. Typically, the viscometer is utilized to measure shear rates at 600, 300, 200, 100, 6, and 3 revolutions per minute…
Added by Rachain Jetjongjit on December 9, 2010 at 2:00am — 3 Comments
Funnel Viscosity
he funnel viscosity is time in second of drilling mud flowing through the Marsh Funnel Viscosity. The Marsh funnel is dimensioned so that the outflow time of one quart of freshwater (956 cc) at a temperature of 70 F +/- 5 F (21 C +/- 3 C) in 26 +/- 0.5 seconds.Added by Rachain Jetjongjit on December 7, 2010 at 10:00am — No Comments
Mud Weight or Mud Density
Added by Rachain Jetjongjit on December 7, 2010 at 10:00am — No Comments
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