Rachain Jetjongjit


Funnel Viscosity and Rheology of Drilling Mud

19th January 2011
The funnel viscosity is time in second of drilling mud flowing through the Marsh Funnel. 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. Fo... Read >

Buoyancy Factor Calculation and Its Application

15th October 2009
Buoyancy Factor is the factor that is used to compensate loss of weight due to immersion in drilling fluid. Before explaining any further, it is very important to explain the basic concept of Buoyancy. Buoyancy is the upward force that keeps things afl... Read >