Primary well control: the mud column against the formation. About 55 minutes. Work through the five stages in order.
You're drilling the 8½" section at 9.5 ppg, 30 ft/hr, pumps on, everything steady. Press play and watch the driller's screen.
The ROP doubled, then the pits started gaining. What do you do first?
The weight of the mud column holds back the formation. If the mud pushes harder than the formation, the well is overbalanced and nothing comes in. Move the sliders, then use the buttons to cause a kick yourself three different ways.
What eats into the margin? Try each one, then move the sliders:
Use 0.052 to convert ppg to psi/ft. Round to the nearest whole psi unless the question asks otherwise. Have a go before you look at the working.
Ten questions in IWCF style. Answer all ten, then mark the paper. 8 out of 10 passes the session; the real exam pass mark is 70%.
Trip sheet check
Next: Session 2, fracture pressure, LOT/FIT and MAASP.