Slug It
Mix the slug you need, not a pit full of barite.
In Development for iPhone
Slug It works out slug weight, length and barite for a dry trip, so you stop over-mixing and wasting sacks.
What It Calculates
Slug length (ft) = slug volume (bbl) ÷ drill pipe capacity (bbl/ft)
Slug weight (ppg) = mud weight + (dry pipe length × mud weight ÷ slug length)
Barite (lb/bbl) = 1470 × (slug weight − mud weight) ÷ (35 − slug weight)
Mix only the barite the slug calls for, and nothing goes back to the pits as excess weight.
What It Does
Start from dry pipe
Tell it how many feet of dry pipe you want and it works back to the slug weight and volume.
Barite to the sack
See exactly how much barite the slug needs, rounded to whole sacks.
Pit gain check
Know how much the pits should gain once the slug falls, before you start pulling.