Report Analysis for Performance Improvements.

A: The pressure step changed inlet momentum, not residence time. Option A sounds intuitive because mist eliminators do have velocity limits, but raising backpressure increases gas density and can worsen entrainment at the inlet. Option B feels like classic level control, yet dropping level shrinks effective calming volume during a momentum surge. Option D borrows from fractionation thinking; flashing light ends increases vapor rate and shear right where droplets are forming. Cutting inlet momentum addresses the root cause even if it annoys the wells.

A: Start with units. 20,000 barrels per day is about 112,000 ft³/day, or ~78 ft³/min. Dividing 1,200 ft³ by that gives about 15 minutes; adding back typical rounding and normal level puts it in the tens of minutes. Option A drops a factor of five in the conversion. Option B assumes a rule of thumb without checking numbers. Option D confuses slug handling volume with normal residence.

A: A PSV sized and set for vapor fire cases won't see trapped liquid expansion because the liquid leg is hydraulically isolated. Option B feels right because of sizing limits, but the PSV still opens on pressure regardless of source. Option C drifts into material toughness, unrelated to the scenario. Option D misreads the failure direction; collapse isn't driven by blocked outlets here.

A: Free water and H2S set up atomic hydrogen charging, leading to blistering and stepwise cracking. Option A fits CO2 systems but ignores sulfides. Option B needs high hardness and stress; many separators stay below SSC thresholds. Option D explains localized metal loss but doesn't match a low-sand, corrosion-driven environment.