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The scope ladder

From drawing to running plant.
One partner.

Two parallel arcs run through our delivery: a fabrication-led arc for plant builds and equipment scope, and a membrane-led arc when our patented separation IP is in play. Pick where you enter (engineering, pilot, fabrication, or installation) and we own the work from there to handover.

Fabrication-led arc

Engineering → Fabrication → Installation → Operations.

Most plant builds and equipment packages enter here. Engineering and fabrication scope is handled in our shops; we erect, commission, and stay on for operations support. Engineering can be picked up as a stand-alone scope when the customer plans to fabricate elsewhere. See Engineering & design →

  1. Completed Acid Gas Oxidizer (AGO) STACK at the PSE Kerteh shop, ready for shipment.

    Fabrication

    Code-stamped pressure equipment, skids, packaged plants, and membrane systems, built in our own shops.

    Step in detail
  2. Modular process systems installed at industrial sites.

    Installation & Commissioning

    We erect, hook up, and start up the system or plant on your schedule.

    Step in detail
  3. Operational AZEO-SEP system at the Virginia hybrid refinery.

    Operations & Support

    Run the system or plant for you, or train your team. Either way, we stay on call.

    Step in detail

What this is not

Not a stack of vendors.

Most industrial projects fail in the seams between vendors. The fabricator blames the engineer. The engineer blames the operator. The operator blames the equipment. Petro Sep eliminates the seams by owning the scope you hand us, end to end, in our own shops.

  • No subcontracted fabrication.

    Every vessel and skid in our fabrication scope is welded in our own shops, by welders we have qualified, under our own quality system. Purchased equipment is inspected at the vendor's works before it ships.

  • No outsourced commissioning.

    The engineers who designed the system are the same engineers who start it up on your site.

  • No 'support contract' that means a phone tree.

    If you ask for support, you get the engineer who knows your system, not a Tier 1 ticket queue.

  • No vendor finger-pointing.

    One contract. One point of accountability. One team responsible from drawing to steady state.

How we engage

Two commercial models.

Procurement teams come to us with different shapes of commitment. We support two engagement models, and we will tell you up front which is the right fit for your project.

Model 01

Capital purchase.

You buy the equipment. We engineer, fabricate, install, and commission. We sign a multi-year membrane replacement and maintenance agreement so the platform stays at its commissioning baseline. You own the asset on your books.

  • Capex on your balance sheet. Predictable opex on membrane replacement and service.
  • Best fit when the asset is core to your production line and the financial model favours ownership.
  • Petro Sep retains responsibility for performance, with a defined service-level agreement.

Model 02

BOOM: Build, Own, Operate, Maintain.

Petro Sep retains ownership of the membrane plant. You pay a fee per litre or gallon processed. We carry the asset, run the system, and absorb the performance risk. You move a capex line to opex.

  • Zero capex outlay. Fee scales with volume processed.
  • Best fit when the asset is utility-shaped (water treatment, solvent recovery as a service) rather than product-shaped.
  • Variable pricing keeps Petro Sep’s incentives aligned with your uptime and recovery numbers.

Hybrid arrangements (Capital purchase on the membrane train, BOOM on the consumables and service stack) are common. Tell us the shape of the commitment that works for your organization; we will scope the engagement model to fit.

Have a build or a separation problem
we should look at?

Send drawings, specs, datasheets, or a fluid sample. We respond promptly with a routing recommendation, a scope plan, and an honest read on schedule.