Journal of Chemistry / 2015 / Article / Tab 3

Research Article

Polymer Drilling Fluid with Micron-Grade Cenosphere for Deep Coal Seam

Table 3

Applicable formula and correlation coefficient of different drilling fluid rheological models under different temperatures.

ModelTemperature/°CRegression equationCorrelation coefficient

Bingham200.8865
300.9016
400.9213
500.9144

Power law200.9968
300.9982
400.9961
500.9970