high pressure co2 re-injection ge oil and gas experience

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• GE solutions for CO2 management

• HP pump … test results

• Next step … compressor and pump system

High pressure CO2 re-injectionGE Oil & Gas experience

GE Oil & Gas

Nicola PezzellaProduct Line Manager

Roma October 18th, 2011






High pressure CO2 re-injection

GE Oil & Gas



CO2 capture & GE products

• Combined cycle power plants

• EGR … reduce energy requirements & CAPEX

• Compressor & pump for CO2 boosting

• Combined cycle power plants

• Large compressors for air separation unit


• Combined cycle power plant

• IGCC power island … gasification technology


HRSG

CO2 Capture

unit

Air

Natural Gas

CO2

Cleaned

Exhaust

GG

Liquid H2OExhaust Gas Recirculation (EGR)

GE scope

Post-Combustion

Pre-Combustion/IGCC

Oxy-fuel (NG)

HRSGAir

Syngas

CO2

CleanExhaust

GG

Coal/Natural gas

Gasification/Reforming

Island w/ CO2 capture



CO2 boosting

• Pump & compressor technology ... API 610/617

• 180+ compressor operating w/ content of CO2, H2 and H2S

• 1000+ pumps installed pumps for liquefied HC gases

Inspection & integrity

• Integrated high-resolution caliper

• Direct wall thickness measurement … integrated mapping as option

• 5 m/s speed

Fanuc / Sensing

Control / Monitoring

Control & measuring

• Process control … monitoring, pressure and flow measurements

• Check metering

O&G TurbomachineryO&G PII

CO2 transportation & GE products

MagneScan Compressor Pump



CO2 sequestration & GE products

Water

Onshore / Offshore Facilities

Fanuc / Sensing

Facility operating surveillance

Produced water treatment

O&G D&PS

Wellheads & trees

O&G Turbomachinery

GE ... a unique provider of integrated solutions for CCS

217 bar … Gorgon project

540 bar … Tupi project

Integrated

Compressor + Pump







GE Oil & Gas



CO2 Pump Evolution

Gas

Supercritical Dense phase

Liquid

Suction coordinates Discharge coordinatesPolytropic path

Vapour Liquid phase

To …• CO2 re-injection (>500 bara) • Density variation up to 25%• Suction conditions in supercritical phase• One single pump delivering from

100 bar up to 560 bar @ 7600 rpm

From 2 pumps in series @ 50% ...

... To1 single pump @ 100%



Supercritical CO2 Test loop • Certification of differential pressure & absorbed power with real fluid

at typical field conditions

• Verification of minimum stable flow & rotordynamics with typical fluid

• Test of integration of seal system with the pump (able to test Dry Gas Seals (DGS) & conventional oil seals

GE Oil&Gas Bari, Italy


Test campaign performance data

•Max discharge pressure = 530bara

•Design mass flow rate =35kg/sec

•Design discharge pressure =453bar

•Design overall efficiency =65.5%

•Max density variation >20%

•Design mass flow rate =26kg/sec

•Design discharge pressure =367bar

•Design overall efficiency =64.8%

•Discharge pressure

•Overall efficiency



"Suction condition @ 100bara, 40°C

0

100

200

300

400

500

0 50 100 150 200Inlet Flow [m3/h]

Discharge pressure [bar]

0

10

20

30

40

50

60

70

Polytropic Head 3900 m

"Suction condition @ 100bara, 15°C

0

100

200

300

400

500

600

0 50 100 150 200

Inlet Flow [m3/h]

Discharge pressure [bar]

0

10

20

30

40

50

60

70

•Max deltaP delivered 460 bar at MCSF

• ρave = 900 kg/m3

•GE EoS model accuracy for liquid CO2

•Dry Gas Seals tested



• High compressibility ρave = 600 kg/m3

•Max density variation through pump

•Validation of new impeller family

•GE EoS model accuracy for supercritic.



Test point A“Supercritical”

Test point B“High Density”

Test Speed 7600 rpm







GE Oil & Gas



H [kJ/kg]

P [bar]

Gas compression

Subcritical Compression + Pumping

H [kJ/kg]

P [bar]

Refrigerated Compression

Refrigeration Cycle

H [kJ/kg]

P [bar]

Integrated compressor & pump systemStudy case … 220bar injection

•Only compressor ... barrel or IG

•Footprint driven by gas volume

•13.5MW required power

•Compressor IG + pump system

•↓ footprint & installation time

•11.1 MW … up to 15% power save

•Compressor IG + pump system

•↓ footprint & installation time

•9.5 MW … up to 25% power save



Q&A

high pressure co2 re-injection ge oil and gas experience

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