Q:

What is the definition of differential pressure?

A:

The term "differential pressure" refers to fluid force per unit, measured in pounds per square inch (PSI) or a similar unit subtracted from a higher level of force per unit. This calculation could be taken for pressures inside and outside a pipe or simply in different places along a flow path. This calculation has applications in the drilling industry.

Measuring differential pressure along a line helps drilling professionals identify the precise point of a blockage or to determine whether reservoir fluids are about to start backing into a wellbore, which can interfere with drilling operations. Keeping an eye on pressure at various points along a fluid line is vital for operational safety.


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