All Blog Posts Tagged 'control' (2)

These are some well control formulas that I have learned from my well control school and I would like to share with you guys. Please feel free to comments or give me suggestions.



Pressure (P) - psi



Pressure (psi) = Force (lb) / Area in Square Inch (in ²)…

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Drilling personnel need to fully understand about the lag time. Lag time is time delay from pressure adjustment made on a choke valve or a choke HCR to show up on the drill pipe pressure gauge.

Does it sound confuse? Let’s me explain more about it. When you adjust a choke position, you will not be able to see changes on the drill pipe gauge right away because drilling fluid is compressible so you need to be patient and wait a little bit until you see the… Continue