Separation Systems

Compact Total Separation Systems

Compact TotalSeparation Systems

Compact Total Separation

Systems from FMC Technologies

provide state-of-the-art separa-

tion technologies for primary

topsides and subsea separation.

The compact separation

equipment minimizes space

and weight while optimizing

separation efficiencies.

In existing installations,

these systems make increased

production possible.

Benefits Optimize gas and oil quality Minimize foot-print area and weight Reduce impact of solids Increase gas and oil production Optimize produced water quality

Separation Systems The separation company major oil companies go

to with their most challenging projects. Maximum return on investment through extensive

experience and know-how. The only separation company with a proven track

record with inline separation equipment. The leading company in subsea separation. Develops out-of-the-box solutions for the separation

challenges of tomorrow.

The modern art of separation

Cost-effective for subsea and high-pressure applications with limited spaceThe minimum weight and space requirements of Compact Total Separation Systems help to make marginal fields commercially viable. For existing installations where space is limited, this compact equipment will provide separation solutions that lead to increased production. Since pressure vessels can be reduced in size, or sometimes even be eliminated when applying inline separation equipment, compact equipment is ideal for subsea separation and other high-pressure applications.

The challenges of compact separation systemsThe lack of slug volume makes operation under slugging conditions difficult. Other challenges are achieving sufficient separation efficiency, erosion problems due to high velocities and efficiency of inline equipment based on cyclonic technology declining as the flow rate is reduced. These challenges can be dealt with by applying Compact Total Separation Systems.

To overcome the slugging challenges, a buffer volume equal to the maximum required slug volume in the system can be included. Using a design with one or more parallel units helps to handle a wider range of flow rates. Highly efficient desanding equipment combined with erosion resistant material minimizes the risk of erosion. Highly efficient liquid-liquid and gas-liquid equipment ensure that the required separation efficiency can be achieved.

Our equipmentAt Separation Systems we have developed a line of highly efficient compact equipment based on cyclonic technology that covers all aspects of primary separation. The equipment can be combined to suit all conditions and separation requirements. Key characteristics:

Ultra-compact separation in pipe segments Effective de-bottlenecking to increase production

capacity for existing processes Compact separation skids for new-build production

systems Combination of high G-forces and low shear rates

result in increased separation efficiency

Inline Separation Systems

InLine DeSander

The InLine DeSander removes sand from single and multi-phase fluids and can be customized to suit any application. It is a compact cyclonic unit without any reject streams that can handle a wide range of flow rates and achieve efficiencies up to 99 %. Particle sizes down to 1 microncan be removed depending on the size of the unit.

Our inline separation equipment is based on compact cyclonic technology. The inline equipment in the table on the right is currently available.

The operating ranges of the InLine DeGasser, InLine DeLiquidiser and InLine PhaseSplitter overlap to some extent. The space available and required boot size / scrubber size can restrict the use of the InLine DeLiquidiser and InLine DeGasser in which case an InLine PhaseSplitter should be used.

The technology was developed and qualified with Statoil. The first unit, which was installed on Heidrun in the Norwegian sector of the North Sea, has been in operation since 2009.

Separation chamber

Sand-free liquid/gas

Liquid/gas stream with sand particles

Swirl element

Sand extraction

Sand stream

Inline portfolio overview

InLine DeliquidiserRemoves liquid from gas stream

*Efficiencies achieved with actual applications, results may vary depending on flow conditions

Sepe

ratio

n Ef

ficie

ncy

*

InLine DegasserRemoves gas from liquid stream

InLine PhaseSplitterOne stage gas/liquid separation

Gas-liquid InLine DeGasserInLine DeLiquidiserInLine DeMisterInLine PhaseSplitter

Liquid-liquid InLine DeWatererInLine ElectroCoalescerInline HydroCyclone

Solids InLine Desander

Controls InLine Controls

100 %

80 %

60 %

40 %

20 %

0 %

100 %

80 %

60 %

40 %

20 %

0 %90 92 94 96 98 100

GVF %

100 %

80 %

60 %

40 %

20 %

0 %10 20 30 40 50 60 70

GVF % Set Point

Liquid from gas

Liquid from gasGas from liquid

Gas from liquid

100 %

96 %

92 %

88 %

84 %

0 %

Diameter of InLine DeSander

Sand

Rem

oval

Eff

icie

ncy

Solid particles from: 1 - 100 microns

1" 4" 6" 10" 12"

InLine PhaseSplitter

The purpose of the InLine PhaseSplitter is to split a multi-phase stream into two single phases a gas and a liquid phase. The InLine PhaseSplitter was designed to cover the gap between the InLine DeGasser and InLine DeLiquidiser. The principle of operation is the same as that of the InLine DeGasser and the InLine DeLiquidiser, while the InLine DeLiquidiser and InLine DeGasser can be considered to be polishing units, the PhaseSplitter is in general for bulk separation. The technology was developed and qualified with Statoil. The first unit, which was installed on Veslefrikk in the Norwegian sector of the North Sea, has been in operation since 2006.

InLine DeLiquidiser

The purpose of the InLine DeLiquidiser is to separate liquids from a gas stream. The liquid stream containing gas enters the swirl element which causes a liquid film to form on the wall of the InLine DeLiquidiser. The liquid-free gas is discharged through the smaller diameter pipe in the centre of the InLine DeLiquidiser, while the liquid film is discharged to the vessel boot. The technology was devel-oped and qualified with Statoil. The first unit, which was installed on Sleipner T in the Norwegian sector of the North Sea, has been in operation since 2004.

InLine DeGasser

The purpose of the InLine DeGasser is to separate gas from a liquid stream. The liquid stream containing gas enters the swirl element which causes a gas core to form in the centre of the InLine DeGasser. The gas core then enters the smaller diameter pipe in the centre of the InLine DeGasser and is discharged to the scrubber section, while the gas-free liquid reaches the outlet. The technology was developed and qualified with Statoil. The first unit, which was installed on Statfjord B in the Norwegian sector of the North Sea, has been in operation since 2003.

InLine DeWaterer

The InLine DeWaterer is a compact cyclonic unit designed for efficient separation of bulk oil from water which com-bines high efficiency with low pressure-drop in a compact design. It is an axial flow cyclone that uses a fixed swirl element. The technology has been developed and qualified with Statoil and, during testing, efficiencies exceeding 99 % have been achieved. In December 2010 a successful offshore test was carried out by Statoil at Gullfaks C.

Swirl element Gas extraction

Liquid-free gas

Separated liquid

Separation chamber

Gas-dominatedgas/liquid stream

Swirl element Gas extraction

Gas-free liquid

Separated gas

Separation chamber

Liquid-dominatedgas/liquid stream

Separated gas

Separation chambergas/liquid stream

liquid stream

Separatedoil

Separatedwater

Inlet

Swirl element

Inline HydroCylone

Improved axial flow InLine HydroCyclone: High separation efficiency performance Low pressure-drop Low differential pressure-drop ratio Erosion resistant Resistant to clogging

Suitable for installation in existing hydrocyclone vessels. The worlds first subsea InLine HydroCyclone was installed

at the Petrobras Marlim Subsea Separation Project in 2011

Cyclonic Liquid-Liquid Separation

The advantage of the primary liquid-liquid separation is that it replaces large vessels with compact technology (to reduce size and weight). It can also be used anywhere in a processing stream where compact bulk liquid-liquid separation is required. The InLine DeWaterer is a compact centrifugal inline separator, which removes hydrocarbon liquid from water-dominated streams that can handle up to 30 % - 50 % of gas volume and water cuts of 50 % and higher. It is installed (for debottlenecking purposes and upgrading existing production facilities) in the following ways:

upstream of an existing gravity separator to remove the bulk of the water

in parallel with an existing gravity separator to increase plant capacity

downstream of an overloaded gravity separator to clean the water

The InLine DeWaterer can also be used to remove water droplets from oil if the water cut is

Integrated Separation Systems

For large pressure vessels, the movement of the FPSO can often cause operational problems such as spurious alarms and shutdowns. Designing around this problem often means increased margins and therefore larger pressure vessels which lead to increased cost. As inline equipment is not affected by movement, compact total separation systems are ideal for installation on FPSOs. The potential savings in space and weight can be substantial: up to 8 x smaller footprint and 5 x lower weight. Similar savings can also be implemented at other offshore facilities.

Integrated Inline System Shell PDO Al-Huwaisah, Oman

Our skid replaced an installation in the desert of 135 T. and 12x20x10 m. (LxWxH). It weighs 24 T. and measures 5x6x10 meters.

Petrobras inline three-phase separation system

The Integrated InLine System for Brazilian national oil company Petrobras is a skid for produced water degassing and heavy oil removal which consists of:

A CDS-Gasunie cyclone InLine DeWaterers InLine HydroCyclones

The InLine- DeGasser, DeSander, PhaseSplitter, DeWaterer and DeLiquidiser are patented by Statoil and FMC has exclusive worldwide license to sell this technology.

Other solutions by Separation Systems

Production Improvements Heavy Oil production Efficiency Improvement and Troubleshooting Solids Handling Produced Water

Gullfaks Compact Separation System

An Integrated InLine System was developed for Gullfaks A and C to handle future LP production and to extend field life. The system consisting of InLine PhaseSplitters, InLine DeGassers and InLine DeLiquidizers made it possible to eliminate pressure vessels. A test programme was performed to optimize performance and maximize separation efficiency.

Gasunie cyclone (A - gas/liquid) InLine DeWaterers (B&C - dirty water cleaners)Hydrocyclones (D - recently optimized)

A

C

D

B

Photo: Statoil, Oyvind H

agen

www.fmctechnologies.com/separation

FMC Technologies

Separation Systems

Delta 101

6825 MN Arnhem

The Netherlands

Phone: +31 (0)26 7999100

FMC Technologies

1777 Gears Road

Houston TX 77067

USA

Phone: +1 281 591 4000

Copyright February 2011 | FM

C Technologies