Leak Off Test Drilling Procedures & Calculations Sheet
Before starting leak off test drilling procedures, gauges should be checked for accuracy. Also the upper pressure limit should be determined. It is so simple to run leak off test drilling but if you exceeded certain pressure, you may break the formation and a loss of circulation may occur.

Leak Off Test Pressure Equations

Field Units

LOT in equivalent mud weight = (LOT pressure ÷ 0.052 ÷ Depth of Casing Shoe TVD ) + (Working
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