Bottom hole pressure
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Bottom Hole Pressure Relationship
The pressure, usually measured in pounds per square inch (psi), at the bottom of the hole. This pressure may be calculated in a static, fluid-filled wellbore with the equation: BHP = MW * Depth * where BHP is the bottomhole pressure in pounds per square inch, MW is the mud weight in pounds per gallon, Depth is the .
In smaller diameters it can be psi ( bar) or higher. Backpressure or pressure held on the choke also increases bottomhole pressure, which can be estimated by adding up all the known pressures acting in, or on, the annular ( casing) side. Bottomhole pressure can be estimated during the following activities;.
Bottom-hole Pressures in Oil Wells - OnePetro
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Description:Oil Field Knowledge , Well Control This is a classic example demonstrating how bottom hole pressure will be due to gas migration in a shut in well. This is very important concept in well control. For this example, since the volume of the well does not change, and assuming that no mud or fluid is lost to the formation. This example will demonstrate the gas behavior in a shut in well. The well is shut-in without pipe in hole.