文档介绍：Temperature Control Unit
1
Drilling Fluid Rheology
Newtonian Fluid:
Viscosity:
Non-Newtonian Fluids:
PAC and XCD were used to control the rheological parameters of the drilling fluid.
Herschel-Bulkley Fluids:
Apparent Viscosity:
For Newtonian Fluids:
2
Rheology Temperature Effects
3
Rheologies of Test Fluids at Different Temperatures
4
Annular Pressure Loss Gradients at Different Temperatures
Fluid A
Fluid B
5
Small-Scale Flow Loop
6
Small-scale Flow Loop
7
Low Pressure Ambient Temperature Flow Loop
8” x
4-1/2”
annulus
100’ long
transparent test section
140 rpm
max. drillpipe rotation
Max. flow capacity:
750 gpm
Angle of inclination:
00 – 900
8
Data Acquisition and Control System
9
LPAT FLOW LOOP CAPABILITES
Conventional (pressible) Drilling Fluids
Max Pressure: 50 psi
Temperature: Ambient
Max Pumprate: 650 gpm @ 50 psi ( Centrifugal Pump )
Compressible Drilling Fluids ( Foams & Aerated Muds )
Max Pressure: 120 psi ( pressor )
Temperature: Ambient
Liquid Pumprate: 650 gpm
Air Flowrate: 800 scfm @ 120 psi
10