Decision Making

A: Picking the wrong mechanism pushes you toward the wrong mitigation and you end up with accelerated wall loss or a leak before the next interval. Carbonic acid corrosion matches free water, elevated CO₂ partial pressure, and uniform thinning that trends upward with flow and temperature. The other options need either H₂S, chlorides plus oxygen as the dominant driver, or temperatures far above what’s stated.

A: Choosing the wrong geometry shows up as chronic level trips or gas carry-under that chokes downstream equipment. Low GOR and sluggy flow favor a vertical vessel where liquid handling dominates and slugs are buffered by height rather than length. The horizontal options shine at high gas rates, and the three-phase configuration adds internals you don’t need for the stated duty.

A: Locking in the wrong indication feeds bad data into control and protection, and that’s how you trip or overpressure something on first start. Bench calibration removes process impulse effects and tells you whether the transmitter itself is biased before touching the DCS. Tweaking displays or blaming the gauge masks the root issue, and acceptance without closure fails basic ITP logic.

A: Misdiagnosing this leads to repeated trips and potential compressor damage from liquid ingestion. A fouled or collapsed demister explains DP increase and carryover while upsetting level control indirectly. Instrument or valve issues don’t create a sustained DP rise across the mist eliminator.