SUBSEA DESANDER-SSD™

Cyclonic ‘High Efficiency’ Solids Separation

THE SUBSEA DESANDER BY ePROCESS IS A CYCLONE BASED PROCESS MODULE, PROVIDING THE MOST COST EFFECTIVE SOLUTION FOR THE SEPARATION AND REMOVAL OF SOLIDS FROM MULTI-PHASE FLUIDS.

eProcess Subsea Desanders are based on cyclonic

technology-which has the highest throughput

to size ratio of any separating device. Harnessing

pressure drop to create strong centrifugal

separating forces, solids separate from the

multi-phase fluids in a compact footprint.

Multiphase fluids are directed into the cyclone

creating vortex flow and high g-forces. Free gas

disengages and separates quickly. Heavier solids

are forced outward toward the cyclone wall, while

the lighter fluids migrate in the opposite direction

toward a centre core.

Solids spiral down the cyclone to the underflow

outlet, while the remaining fluids are forced in the

opposite direction to the overflow. The process is

a simple and effective separator, with a 2-3 second

residence time, and no moving parts.

Produced solids from oil & gas wells is a flow assurance issue for subsea facilities. Sand in the flowstream results from unconsolidated reservoirs, high production rates, or the failure of gravel packs and other sand control measures. Detrimental effects of sand production include mechanical damage & erosion to chokes, flow lines, control valves, pumps, compressors, and other equipment; decreased separator capacity due to reduced residence time; partial blockage of pipelines, and high environmental discharge costs.

Solids handling is an increasingly important task, and an efficient process dealing with the problem must address the effective removal of sand from multiphase flow - upstream or downstream of the choke.

AUS | MYS | USA | UAE | UK www.eprocess-tech.com • sales@eprocess-tech.com Advancing Separation Solutions

SUBSEA DESANDER-SSD™

APPLICATIONS• Subsea Wellstream Sand removal;

• Well Test Cleanup;

• Coiled Tubing Cleanup;

• Underbalanced Drilling Operations.

BENEFITS• No moving parts, low maintenance and reduced downtime – result in significant capital and

operating cost savings;

• Compact; 10% the size and weight of conventional filter systems; ease of mobilisation;

• Activates oil and gas wells previously shut-in due to excessive sand production;

• Eliminates solids erosion on downstream pipework, valves, chokes, pumps, compressors

and process vessels;

• Provides solids removal prior to oil contamination and eliminates sludge formation and other

difficult solids accumulation problems.

OPERATIONS• Wellhead Desanders are available in several sizes, separating 98% of particles from

5 to 50 microns and larger, and up to 99% by weight;

• Operating pressure drop requirements vary from 10 to 60 psi, with the larger units handling

solids volumes of up to 20% and the smaller units handling up to 1-2% by volume;

• Product offerings with design pressures up to 20,000 psig.

STORAGE & TRANSPORTATON• Solids are typically collected into dedicated secondary accumulator vessels;

• Easy mob / demob of subsea module based sand collection package;

• Numerous solids transport and disposal options available depending on existing subsea

facilities infrastructure.