Building a liquid mud plant and running one are different problems, and the bridge between them is commissioning. A plant is not ready when the last flange is bolted up — it is ready when the weighing is calibrated, the lines hold pressure, the conveying flows and the first batches come out on-spec. This page walks the path from plot plan to first mud.
From plot plan to first batch
Installation follows the plot plan: foundations, silo erection, tank setting, structural steel, piping, electrical and instrumentation, each signed off as it completes. The goal of the build phase is mechanical completion — everything installed, connected and punch-listed — which is the starting line for commissioning, not the finish.
Civil, structural and mechanical completion
The physical plant comes first: foundations sized for full silos and tanks, silos erected and aligned, tanks set and connected, piping run and supported, and the whole assembly walked down against the drawings. A punch list captures every defect — a missing support, a wrong gasket, an unlabelled line — and clearing it is what allows pressure and function testing to begin.
Pressure, function and leak testing
Before any fluid of value enters, the systems are tested. Liquid lines and vessels are pressure / leak tested (hydrotest where appropriate), every valve is function-tested, and the conveying system is checked for tightness. Safety systems — ESD, relief and interlocks — are trialled so they are known to work before they are needed, not discovered to be wrong during an incident.
Calibration and conveying trials
Now the plant is made accurate. Load cells are calibrated against known weights so the weigh hopper and weighed tanks read true. Dense-phase conveying is trialled, often with inert material first, to prove flow rates, prove the airlock and check the baghouse and bin vents hold dust. Instruments are ranged and verified. This is the step that turns installed equipment into a plant that can be trusted with a recipe.
Staged commissioning and handover
Commissioning is done in stages: a water batch to prove circulation and transfer, then a first water-based batch built and tested against API RP 13B, before the plant takes on oil-based systems and live supply. Alongside the fluid work, documentation, SOPs and operator training are completed, so handover passes a plant that is not only built but proven and operable.
Key takeaways
Installing an LMP follows the plot plan to mechanical completion — foundations, silos, tanks, piping, electrical and instruments, punch-listed against the drawings. Commissioning then proves it: pressure and function testing, ESD and interlock trials, load-cell calibration, conveying trials with inert material, and staged water and first water-based batches tested to API RP 13B, with SOPs and training completed at handover. Scope and sequence vary by project; the complete-test-calibrate-prove path is constant.