Geomechanical quiz

How does the effective stress change in overpressured regime compared to normal pressure regime?

• Decreases

• Increases

• Both are possible

• None of the above

Which one of these pressure sources have the lowest level of confidence?

• Gas responses

• D-exponent

• Kick

• FIT

What is the first step in MEM construction?

• Framework model

• Mechanical stratigraphy

• Overburden stress

• Data conditioning

Do you need to calibrate overburden stress during drilling if the pre-drill profile has been estimated from sonic log?

• Yes

• No

What happens if the mud weight gets below shear failure pressure?

• Kick

• Loss

• Breakout

• None of the above

Which one of these is the pressure information source with highest level of confidence

• Seismic velocity

• MDT

• Kick

• FIT

Is there a universal method for estimating/predicting pore pressure in sands and/or carbonates?

• Yes

• No

Kicks originate from ........ formations, that is most of the time from ........ or from ........ formation

• permeable, sand, fractured tight

• impermeable, shale, fractured tight

• permeable, shale, intact

• impermeable, sand, intact

We calibrate and validate the model in order to

• sleep peacefully at night

• identify safe drilling trajectory

• assist right mud weight selection

• maintain internally consistent model

Which stage does the MDT measurements belong?

• Pre-drill

• During drilling

• Post-drill

• All of the above