The same relationships built into our tool kits and remote evaluations — run them live, get the band you're in, and know what to do next. Works on the rig, online or off.
The single most useful number in solids control: of all the solids your bit generated, how many did the surface equipment remove before they recirculated? Compare the fluid you actually built against the dilution-only volume that pure dilution would have needed.
Cones run on geometry and pressure, not flow. The variable that decides whether a cone actually cuts is head — the energy at the inlet that spins solids to the wall. Below target, the cut coarsens and fines slip back into your active system, silently driving dilution.
The most flexible machine on the train — and the most often mis-set. Bowl speed decides which of two opposite jobs you get: low G recovers barite, high G dewaters and pulls the ultra-fine solids dilution can't economically remove.
Solids-control losses are invisible because the system never stops running — the dilution rate just sits quietly higher than it should. Put a number on what restoring efficiency is worth over a section.
Pick a screen by mesh alone and you're guessing. API RP 13C labels a screen through a defined screen-cloth test and conductance, not through field PSD alone. Tell us the section and fluid; get the cut-point priority, the trade-off to watch, and what to read on the deck.
These five run one calculation at a time. The Doctor toolkit links 22 connected modules — diagnosis, what-if and daily reporting — and works offline in five languages. Enter your email to request the field guide and a sample remote-evaluation report.
