Off shore
ROTOMAC pumps are built for round-the-clock operation at remote offshore locations, handling products with low shear and minimal pulsation, high solids content, and demanding process conditions including low NPSHa, high inlet pressures, and liquids with varying gas content.
HandlingLow Shear & Minimal Pulsation
SuctionLow NPSHa Capability
DutyRound-The-Clock Operation
MediaHigh Solids & Varying Gas
Conditions Offshore Sector
Where The Equipment Has Nowhere To Hide
Almost 71% of the earth’s surface is covered by oceans, so it is no surprise that a large share of known oil resources lies beneath the seas — offshore output fluctuates around a third of global oil production. As exploration and extraction move into more extreme environments, the demands placed on equipment become tougher.
Offshore exploration uses jack-up, submersible and semi-submersible rigs, while production runs on tension leg and spar platforms and floating production storage and offloading (FPSO) units. Each shares similar processes but has unique requirements depending on location.
One platform, many duties. Drilling waste must be managed, produced water treated, reject oil handled, sewage treated, MEG processed, open and closed drains and caissons emptied, and condensate and crude oil transferred — all from a deck with no spare space and no easy access for maintenance.
Three Conditions That Define The Duty
Offshore process conditions are the hardest test a pump faces. These three shape every specification decision.
Low NPSHa
Drains, caissons and sumps offer almost no suction head. Our pumps are engineered to operate under extremely low NPSHa, in conventional or compact configurations.
- Conventional or compact configurations
- Overcomes severe space restrictions
- Suited to open and closed drains systems
High Solids & Gas Content
Cuttings, sludge and produced water arrive with entrained solids and varying gas content that would block or vapour-lock a conventional pump.
- Solids pass through the conveying cavities
- Handles liquids with varying gas content
- Copes with high inlet pressures
Low Shear
Oil droplets in produced water must survive the pump if separation downstream is going to work. Low-shear conveying protects the droplet rather than emulsifying it.
- Protects oil droplet integrity
- Minimal pulsation for stable metering
- Feeds flotation and hydrocyclone units
ROTOMAC Pumps For Offshore Oil And Gas Extraction
Seven duties across the platform, and the pump technology behind each.
Drilling Waste Management And Cuttings Transfer
Our pumps feed decanter centrifuges, vertical dryers and other processing equipment with minimal shear and pulsation, and transport heavy cuttings or clean mud pits.
Produced Water Treatment
Our low-shear pumps feed oil/water mixtures into induced gas flotation units and de-oiling hydrocyclones without damaging the oil droplet.
Sewage Removal And Treatment
Our pump ranges are used across a variety of applications to handle sewage and wastewater.
MEG Reclamation
The ability to operate under extremely low NPSH conditions and handle highly viscous products with entrained solids makes our pumps well suited to separating MEG from impurities and restoring glycol purity.
Versatile Open And Closed Drains Pumps
Our flexible pump range supports engineered solutions — conventional or compact configurations — to overcome space restrictions and low-NPSHa requirements.
Sump And Caisson Emptying
Our low-shear pumps handle low-to-highly viscous products with entrained solids from sumps and caissons, transferring them onward for separation.
FPSO
We offer engineered solutions for FPSOs handling products with low shear, minimal pulsation, high solids content, and demanding process conditions.
Pump Ranges For Offshore
The ranges most often specified for this sector. Send us your duty and our engineers will confirm the model.
S Range
Robust all-round progressive cavity pumps conveying low to highly viscous products, with or without solids.
W Range
Open hopper pumps with integrated auger feed for highly viscous, semi-solid and non-flowable products.
Vertical Immersible
Vertical immersible pumps that empty pits, basins, sumps and caissons where suction conditions are critical.
Specifying A Pump For An Offshore Installation?
Tell us the duty, the available NPSHa, the solids and gas content and the space envelope — our engineers will configure a conventional or compact solution to fit.
Email Us
contact@rotomac.orgCall Us
+91 7522 002204 (Sales)Head Office
D-4a, Panki Industrial Area, Site-1, Kanpur – 208022, India