FST Procedure
This article presents Formation Strength Tests Equipment and Procedure.
Equipment Requirements
A formation strength test requires:
- a Cement Pump with mud tank calibrated in ΒΌ bbl
- calibrated gauges covering anticipated pressure range mounted on a dedicated manifold
- a chart recorder
- a recording form.
Test Pressure Limitations
The test pressure shall be limited to a maximum pressure that does not exceed the lowest:
- leak-off pressure.
- limited pressure advised in the Drilling Programme (Limit Test) of the casing burst pressure . . .