دسته: مکانیک
بازديد: 37 بار
فرمت فايل: ppt
حجم فايل: 3288 کیلوبایت
تعداد صفحات فايل: 85
Wellbore Hydraulics
- Hydrostatics
- Buoyancy
- Pipe Tension vs. Depth
- Effect of Mud Pressure
- Laminar and Turbulent Flow
- Pressure Drop Calculations –Bingham Plastic Model –API Power-Law Model
- ...
Axial Tension in Drill String
Example
A drill string consists of
10,000 ft of 19.5 #/ft drillpipe and
600 ft of 147 #/ft drill collars
suspended off bottom in 15#/gal mud
(Fb = bit weight = 0).
• What is the axial tension in the drillstring as a function of depth?