Upstream Downhole

Services

Engineered pickling, passivation, and chemical decontamination solutions designed to maximize thermal efficiency and stop corrosive attack.

Request Estimate Explore Capabilities

99.8%

Zero Incident Record

300+

Turnarounds Executed

12 Hrs

Avg Downtime Saved

Precision Chemistry for Complex Systems

Upstream Downhole covers a wide range of services. To continue operating at peak efficiency, process systems, vessels, and pipelines must be kept free of scale, sludge, precipitates, and deposits.

Pre-operational Upstream Downhole of pipework

Phase 01

Pre-Operational Cleaning

Performed prior to startup, this critical phase removes foreign materials remaining from construction activities. We target mill scale, weld slag, temporary protective coatings, grease, and debris to ensure pristine system integrity before introducing process fluids.

Degreasing and alkaline boil-outs.

Acid pickling to remove mill scale and iron oxides.

Passivation to create a protective oxide layer.

Phase 02

Post-Operational Maintenance

Executed during regular shutdowns or turnarounds. This process targets the removal of by-products generated during standard operations, restoring heat transfer efficiency, reducing flow restriction, and providing clean access for structural inspections.

Removal of organic fouling (heavy oils, asphaltenes).

Dissolution of inorganic scale (calcium, silicates, iron sulfide).

Decontamination for safe man-entry (LEL, H2S, Benzene removal).

Technician verifying completed maintenance

Chemical Application Methods

Selecting the proper method depends on system design, flow rates, metallurgy, and deposit type. We offer comprehensive delivery techniques.

Fill and Circulate

The standard for closed-loop systems. Chemicals are pumped continuously through the system, using heat and velocity to enhance reaction rates.

Cascading Method

Ideal for large columns and vessels. Chemicals are distributed at the top and allowed to gravity-flow down over trays and internal structures.

Vapour Phase

Injecting chemical formulations into steam streams. Excellent for de-oiling, degassing, and LEL removal in large storage tanks and flare lines.

Two-Phase Flow

Combines liquid chemistry with nitrogen gas. Creates high-velocity turbulence to scour out severe particulates and stubborn scale.

Foam Cleaning

Utilizes highly stable chemical foams to completely fill large spaces (like condensers), ensuring 360-degree contact with minimum liquid volume.

Nozzle / 3D Cleaning

Automated high-pressure chemical spray heads inserted into vessels to mechanically blast and chemically dissolve internal deposits simultaneously.

Sectors We Empower

Industries We Serve

Custom-engineered solutions built specifically to handle the critical demands and stringent standards of heavy industry sectors.

Oil & Gas

Upstream extraction, midstream transmission pipelines, and downstream processing.

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Petrochemical

Complex chemical processing refining plants with extreme heat and cleaning parameters.

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Energy

Turbine, nuclear, hydro, and next-gen steam generator setups requiring high-cleanliness tolerances.

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Utilities

Water, steam, and distribution infrastructure supporting regional grids and public safety.

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Industrial Facilities

Large scale plants, pulp & paper mills, smelting factories, and dry-bulk terminals.

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Manufacturing

Precision fabrication and manufacturing operations requiring specialized utility piping lines.

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Answers to Critical Concerns

Frequently Asked Questions

Common questions regarding our engineering standards, deployment speeds, and safety approvals.

Primus serves Oil & Gas, Petrochemical, Energy, Utilities, Industrial Facilities, and Manufacturing operations. Its service footprint extends across Canada and the United States, with page references to Alberta, Saskatchewan, and Texas.

Primus lists Pipeline Services as one of six core service lines, alongside Upstream Downhole, Nitrogen Services, Pre-Commissioning Services, Industrial Maintenance, and Shutdown & Turnaround Support. Project-specific scope should be confirmed during consultation.

Yes. Shutdown & Turnaround Support is a listed core service, and the page states a 24-hour response target with 48-hour average mobilization. Timing and crew availability should be confirmed for each project.

Primus describes a Canada and USA service footprint, with Canadian references to Alberta and Saskatchewan and a United States reference to Texas. Confirm the exact project location and current deployment availability through the inquiry process.

The page reports 48-hour average mobilization and states that project inquiries receive a response within 24 hours. Actual mobilization depends on project scope, location, personnel availability, and the required service.

Primus highlights ACSA and COR credentials together with HSE and JSA practices. Project-specific safety documentation, requirements, and approvals should be reviewed with the Primus team before mobilization.

Yes. Upstream Downhole is listed among Primus’s six core services, and Industrial Facilities are included among the sectors served. The cleaning scope, operating parameters, and schedule are assessed for each project.

Primus lists Shutdown & Turnaround Support and Industrial Maintenance among its core services. Support for a large-scale turnaround should be evaluated against the project scope, schedule, location, and available personnel during consultation.