Difference between revisions of "Cementing (Model Outputs)"
(Created page with "===Depth Channels=== *'''Overbalance Pressure''' - The amount of pressure in the wellbore that exceeds the pressure of fluids in the formation. Calculated as <center><code>OBP...") |
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<code>SGS</code> - Static gel strength, lb/100 sq f | <code>SGS</code> - Static gel strength, lb/100 sq f | ||
| − | <code> | + | <code>300</code> - Conversion factor (to obtain MPR in psi), lb/in |
| − | <code> | + | <code>L</code> - length of the cement column, ft |
| − | <code> | + | <code>D</code> - = effective diameter of the cement column, in. (hole diameter minus pipe diameter) |
Revision as of 11:14, 24 August 2018
Depth Channels
- Overbalance Pressure - The amount of pressure in the wellbore that exceeds the pressure of fluids in the formation. Calculated as
OBP=AP-PPAP - annulus pressure;
PP - reservoir pore pressure;
- Gas-flow potential factor - is the estimated amount of gas flow that can be expected from a formation. Calculated as
GFPF=MPR/OBPOBP - Overbalance Pressure
MPR - Theoretical maximum pressure restriction. Calculated as
MPR=SGS/300*L/DSGS - Static gel strength, lb/100 sq f
300 - Conversion factor (to obtain MPR in psi), lb/in
L - length of the cement column, ft
D - = effective diameter of the cement column, in. (hole diameter minus pipe diameter)
