ppt - eposoreda database: mtbf motor driven dry-wet compressor unit =1.8 year o&g major: 80% of...

1 Gerold Hake / Chris Kapp Energy Oil & GasProtection notice / Copyright notice

STC-ECOCanned, Clean and Smart

The first canned and hermetically sealed motor/ compressor solution for dirty gas applicationfor onshore, offshore and subsea

Gas Electric PartnershipFebruary 2009, Houston Texas

Presenter: Chris KappSiemens Energy Oil & Gas


STC-ECOWhy go Canned and Seal less ?

It is about RELIABILITY!OREDA database: MTBFmotor driven dry-wet compressor unit =1.8 year

O&G Major: 80% of all forced outages are caused by unforeseen liquid ingress into compressor

Seal supplier: 80% of all seal failures are caused by contamination

SAFETY And ENVIRONMENT !ZERO Emissions: Easy Permitting

No Hydrocarbons, No F&G System

What is the weakest link in your compression compressor system?

Upstream gastreatment systemsCompressor unit

Auxiliary systems

Human

What is the average MTBF of your dry wet compressor units?

MTBF < 1 year

1 year < MTBF < 2 year

2 year < MTBF < 5 year

MTBF > 5 year

What is the weakest link in your dry-wet compressor units?

Internals: labyrinths, impellers,etc.Bearings and/or lube oil system

Dry gas seals and/or theirsupport systemsControl & Monitoring systems

Customer Feedback


STC-ECOThe concept

Smart

Single casing hermetically sealed

Canned axial/radial Active Magnetic Bearings & back-ups

Canned motor

Induction motor with compact end winding, liquid cooled

Single, solid rotor

Multi-stage compressor

Canned

Clean

3D Animation


STC-ECOIn-house testing

Factory Acceptance Testing

• PTC 10, Type 2

• PTC 10, Type 1

ECO-II


STC-ECOField verification – NAM Vries4

NAM Vries 4 is a centralized, gas gathering, treatment and withdrawal station onshore

Process gas is wet natural gas with a number of contaminants like sand, salt, mercury.

The units passed 12.000 operating hours in December 2008 and availability close to 100% and was found to be in excellent condition

Unit Inspection• Compressor internals dirty but OK. Labyrinths slightly worn, but within specifications

Unit Inspection• Active Magnetic Bearings are in good condition

• Dye penetrant test can surfaces revealed no cracks

• Helium gas tightness test confirmed gas tightness

• Endoscope inspection of bearing cavities revealed no internal fouling or moisture


STC-ECOSecond order K-Lab

April 2007: Contract-award

Unit will be extensively tested at Statoil Test Facility, Kårstø Norway [K-lab]

Complementary testing on liquid tolerance simulating transient liquid carry over upstream scrubber

3-Days fill-up with seawater, drain and start

Testing is vital step for Statoil and its partners in the Åsgard Field towards subsea compression by 2013


STC-ECOThe Range

• One common concept

• Two versions

• Four frame sizes

• Large application flexibility


STC-ECO with its canned design offers

increased SAFETYincreased UPTIMEZERO emissions

In the most challenging O&G applications

Critical applications requiring zero emissions for safety, corrosion and environmental reasons.

First installation Vries4 has proven the concept beyond doubt.

STC-ECOWrap up

ppt - eposoreda database: mtbf motor driven dry-wet compressor unit =1.8 year o&g major: 80% of...

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