Corefield Systems is a completions and commissioning specialist, founded and led by a completions lead who came up through the field. Our job is simple to say and hard to do well: get your project to a clean, audit-ready handover.
Completions is where a project either lands cleanly or unravels. We started Corefield Systems because too many good projects were let down at the finish line. Not by the engineering, but by scattered data, weak systems and completions treated as an afterthought.
We do it differently. We treat completions as a system to be designed and run with discipline: structured ITRs, traceable decisions, clean data, and reporting everyone can trust. Where work is repetitive, such as validation, reporting and dossier assembly, we automate it with AI, then verify it like engineers. The result is a handover that survives scrutiny and a start-up that stays safe and predictable.
“If a sentence wouldn’t survive a site walkdown, we rewrite it until it would.”
Completions · Commissioning · AustraliaCorefield Systems was founded by Attie Groenewald. The method described on this site is not theory. It is how he has run completions and commissioning on some of Western Australia’s largest industrial projects.
Started on the tools as an instrumentation mechanician and technician. Calibration, loop checks and signing ITRs on Roy Hill, Wheatstone LNG, AGL Rockingham and BHP Yarnima.
Moved from supervision into completions leadership on BHP South Flank, covering both the non-process infrastructure and the Ore Handling Plant.
Completions Lead and CCMS subject matter expert, standing up completions management systems across multiple concurrent projects and writing the procedures behind them.
The roles above were held with Clough, Synergy and other principal contractors. They are listed as professional background, not as Corefield Systems engagements.
Three traits that show up in everything we do.
Proven methods, applied consistently. We reduce rework and keep audits clean. Predictability is a feature, not a limitation.
Structured ITRs, traceable decisions, clean data. Detail is the point of the work, never an afterthought to it.
Practical support that fits how teams actually work, from walkdowns and punch through to energisation.
We map your systems, data and handover requirements, and agree what ‘done’ looks like before anyone touches a register.
We configure the CCMS, ITR and QVD registers and reporting so the structure is right from the first walkdown.
Walkdowns, ITRs, punch and progress, tracked in one place, reported clearly and kept audit-ready throughout.
Pre-commissioning through to energisation, verified step by step for a safe, structured start-up.
Clean dossiers and complete data that survive scrutiny. Handover without the last-minute scramble.
Completions discipline transfers across sectors. We support projects in:
Book a consult and we’ll show you exactly where the quickest wins are on your project.
