Chemical Injection Pump Skids
Amarinth’s chemical injection pump skid packages deliver precisely metered chemicals into onshore and offshore oil and gas processes. Engineered for the harshest environments and designed for a service life of up to 30 years (with as much as three years of uninterrupted operation), these compact, automated skids minimise footprint while ensuring fully automated, reliable dosing. Available in baseplate, crash frame, and containerised configurations, each skid can accommodate up to ten high-pressure, positive-displacement pumps. Typical applications include the chemical injection of gas corrosion inhibitors, scale inhibitors, biocides, oxygen scavengers, flocculants, filter-aid cleaners, reverse-emulsion breakers, drag-reducing agents, and anti-foaming or demulsifier treatments.
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Amarinth’s skid packages are optimised for performance, space efficiency, seamless integration, and simplified maintenance, and can be custom-engineered to meet exacting specifications (including NORSOK, Statoil/Equinor, Shell DEP, and BP DGS standards).
Constructed on a welded steel frame with integrated pipework and instrumentation, skids are available in baseplate, crash frame, or fully containerised designs. Advanced 3D-CAD, CFD, and FEA techniques, combined with strict adherence to industry standards, ensure a robust structure capable of withstanding seismic and blast loading.
Each skid can accommodate up to ten API 674 / 675 reciprocating pumps, delivering up to approximately 19 m³/h at 1250 bar g. Optional PLC-based control systems and condition-monitoring instrumentation provide fully automated, turnkey operation to maintain peak efficiency. Skids can also be configured for remote operation, automatically adjusting injection volumes to maintain optimal pressure and maximise extraction performance. Drive options include pneumatic or electric motors to suit site requirements.
Material options include carbon steel, stainless alloys, Hastelloy, super-duplex stainless steel, and titanium, all selected for durability, corrosion resistance, and NACE MR0175 compliance as required for sour-service environments.
All equipment is ATEX-compliant or IECEx-certified, and supplied with full component traceability and comprehensive NDE/NDT testing. Documentation is tailored to project requirements, including certificates, translations, and EAC approvals where required.
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Specifications
| General description | Individually designed Chemical injection skid packages incorporating up to ten API 674/ 675 positive displacement pumps in a variety of alloys complete with integrated pipework and automated process control where required |
| Construction | Weld fabricated frame and pipework with integrated API injection pumps to suit |
| Design methodology | Advanced computer techniques, 3D modelling, CFD & FEA |
| Design standards | ASME B31.3, ASME VIII, PED, |
| Design pressure rating | 1350 barg @ 38°C |
| Suction pressure rating | Atmospheric |
| Temperature rating | 100°C |
| Performance envelope | Flow Rate: Up to 19 m3 /h per pump |
| Maximum pumps | 10 |
| Configuration | Open, semi-open and fully-enclosed skid frame designs |
| Frame Sizes | Up to 8m x 6m x 4m (l x w x h) |
| Design life | 30 years (3 years uninterrupted operation) |
Hydraulic Performance
Amarinth chemical injection pump skids are engineered to meet a wide range of hydraulic duties, delivering precise flow rates and discharge pressures of up to 1,250 bar g. Each system is carefully designed to account for all hydraulic losses across valves, pipework, and instrumentation, ensuring guaranteed performance that meets exact customer specifications for flow, head, and process conditions at the skid edge. In addition, Amarinth considers all specific customer design requirements.
Options
Introduction to API 675 Pump Skid Package Options
| Driver | Instrumentation | Integrated Control |
|---|---|---|
| Electric motor inc. VSD options | Pressure gauge | Flow |
| Air driven | Pressure gauge, Pressure transmitter, Pressure differential gauge, Pressure differential transmitter, Temperature gauge, Temperature transmitter, Flow transmitter | Flow, Pressure, Temperature, Duty, Standby, Shutdown |
Materials
Introduction to API 675 Pump Skid Package Materials
| Skid Frame | Pipework | Casing | Impeller |
|---|---|---|---|
| Carbon steel | Stainless steel | Stainless steel | Stainless steel |
| Galvanised steel | Hastelloy | Hastelloy | Hastelloy |
| Stainless steel | Titanium | Titanium | Titanium |
