Embed Size (px)
Citation preview
Page 1
Offshore Block B on Methane Reduction activities :
Belida Flaring Reduction
Presented To : International Gas STAR Workshop
By Rismal Adriansyah & Krishna Ismaputra
Page 2
Belida Facility Overview Background and Flare Reduction Drivers Flaring Reduction Implementation Efforts Results Challenges Operation Benefit - conclusion
Table of Content
Page 3
Belida Facility Overview Background and Flare Reduction Drivers Flaring Reduction Implementation Efforts Results Challenges Operation Benefit - conclusion
Table of Content
Page 4
Belida Facility Overview Belida Field Locations
Page 5
SOUTH BELUT
TEMBANG
SINGAPORE
BUNTAL
BELIDA
KIJING
BELANAK
KEONG
BAWAL
MALONG
BINTANG LAUT
KERISI
HIU
NORTH BELUT
Kakap PSC (Star Energy)
Block A PSC (Premier)
FSO ‘Intan”
LPG-FSO
Belanak FPSO “Belanak Natuna”
HANG TUAH
MALONG
Offshore Block B Development
Bawal
South Belut
Page 6
Belida Field
• Formation : Delta (gas), Lower Arang (oil), Udang (oil) • Compl type : Single string, Single/Two zone, Single
selective • Field prod (Sep’05): 30.89 BOPD; 160 MBWPD, 108 MMSCFPD • API : 47 Deg • Discovered : December 1989 • First oil : October 22, 1992 • First gas : June 18, 2003
WHPB
DPPA
LGP
INTAN
12”, 8” (Crude, Fuel Gas)
18”, 12”,12”, 12” (Fluid, Gas, Gas, BG2)
8” GL
Page 7
Belida Facility Overview
DPPA
WHPB
PRODUCTION MANIFOLD
TEST MANIFOLD
TEST SEPARATOR
SAND KNOCK OUT DRUM
PRODUCTION MANIFOLD
TEST MANIFOLD
TEST SEPARATOR
SAND KNOCK OUT DRUM
3 STAGES OIL SEPARATION
OIL PRODUCED GAS PRODUCED WATER LIFT GAS/FUEL GAS
LEGEND
FSO INTAN
WATER TREATMENT
OVERBOARD
TO EXPORT TANKER
LGP
COMPRESSION UNIT
CONDENSATE RECOVERY
Page 8
Belida Facility Overview Background and Flare Reduction Drivers Flaring Reduction Implementation Efforts Results Challenges Operation Benefit - conclusion
Table of Content
Page 9
Background and Flare Reduction Drivers
Drivers Belida facilities performance improvement
including operation optimization Potential economic values from recovery of flared
gas to be used as fuel or sales gas Increase focus on environment in terms of CO2
emission from flare emission Alignment with COP Position on Climate Change
as part of COP Sustainable Development Policy
Page 10
Belida Facility Overview Background and Flare Reduction Drivers Flaring Reduction Implementation Efforts Results Challenges Operation Benefit - conclusion
Table of Content
Page 11
Overall Belida Flare System Sources
LP Flare
MOF BA-12001
LIFT GAS FLOW LINE
CRUDE COOLER
LIFT GAS SCRUBBER AUTOMATIC/MANUAL
BLOWDOWN
SAND KO BLOWDOWN/
RELIEF
3RD STAGE SEP RELIEF
TEST SEPARATOR RELIEF
FUEL GAS BLOWDOWN/RELIEF
& SKIM VESSEL RELIEF
PRODUCTION HEADERS RELIEF
1ST STAGE SEP RELIEF/BLOWDOWN
2ND STAGE SEP RELIEF/BLOWDOWN
GAS PROD SCRUBBER SKID
1ST STAGE SEP GAS
2ND STAGE SEP GAS
SHIPPING PUMP SEAL POT
SKIM VESSEL GAS
SWAB VESSEL VRU SUCTION SCRUBBER
SLUG CATCHER
HP Flare
Page 12
Identified sources of Belida HP and LP flaring: Associated gas. Make up gas to gas lift requirement from the gas
export. Controller Tuning. Lift Gas Compressor capacity.
Flaring Reduction Implementation Efforts
Page 13
2006 2007 2008 2009 2010
Commitment to Reduce Flare in Place
Team charter developed to establish a flaring reduction process
Identify the sources of flare gas and developed plans to reduce or eliminate where possible
Fine tuning of the stabilizer’s operating condition
Study of associated gas utilization
Gas lift optimization
Valve inspection with special tools
Q1 2011
Progression Effort – A Summary
Monitor & maintain the set point of PIC 2102 & no passing PSV
Minor facility modifications to reroute gas back through the processing system
Page 14
Program Purpose Result Process optimization
(PIC setting) To maintain and making sure all PCVs
are mostly in closed position thus limited gas was flared to these PCVs.
Reduced flare around 1 mmscfd
Replace LGC engine become Avon-200
Higher HP, increase the gas lift injection rate to increase production, Increase capability taking gas from 1st stage separator
Reduced flare from 1st separator
Managing planned S/D and reduced unplanned shut down by improving reliability
To start up well normally GEC gas used for lifting oil. The gas produced then directly to be flared.
Will avoid flaring from re-start-up activities
Used GEC as LGC during LGC Power Turbine (PT) replacement
When LGC out of services, normally GEC gas used for lifting oil. The gas produced then directly to be flared.
Reduced planned flare and LPO
Re-route skim vessel off gas to VRU suction scrubber
LP Flare opacity reduction Resulted in better Opacity
Flaring Reduction Implementation : Efforts Continues…
Page 15
Belida Facility Overview Background and Flare Reduction Drivers Flaring Reduction Implementation Efforts Results Challenges Operation Benefit - conclusion
Table of Content
Page 16
Month Jan Feb Mar Apr May Jun Jul Aug SeptFlaring Rate (MMSCFD) 62.504 37.327 44.14 65Total YTD (MMSCFD) 208.971
Year Flaring Rate MMSCF/Year CO2 Emission Tonnes/yr2007 2483.5 3617862008 1846.6 2714772009 904.5 714612010 541 144772011 209
Belida Flaring Rate Reductions
2007 2008 2009 2010 2011 F/cast0
200
400
600
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
Year
Flar
eing
Rat
e (M
MSC
F/Ye
ar)
0
30000
60000
90000
120000
150000
180000
210000
240000
270000
300000
330000
360000
390000
Flaring Rate MMSCF/YearCO2 Emmissions - Tonnes/year
Results Summary The remarkable success from those efforts shown in the below chart :
Page 17
Results Summary
Year Flare Rate (mmscf/yr)
Reduction (mmscf)
2007 2,483 380 2008 1,847 636
2009 904 943
2010 541 363
Total 2,322
*) 2006 flare level of 2,863 mmscf – baseline.
Effort from 2007 – 2010 has successfully saved gas flaring about 2.3 BCF (equivalent to 2,392 BBTU) giving benefit of additional revenue in term of gas to sale and environmental benefits.
Page 18
Belida Facility Overview Background and Flare Reduction Drivers Flaring Reduction Implementation Efforts Results Challenges Operation Benefit - conclusion
Table of Content
Page 19
Challenges
Maintain flare when associated gas decreasing over time and increasing gas lift make up.
Maintain unplanned shutdown and dealing with process anomaly
Looking for ways to further reduce flaring
Page 20
Belida Facility Overview Background and Flare Reduction Drivers Flaring Reduction Implementation Efforts Results Challenges Operation Benefit - conclusion
Table of Content
Page 21
Conclusion Continuous Flaring Reduction Program carried out
in Belida Facility from 2007-2010 has significantly reduced Flaring rates and given significant business and environmental benefits: Reduce CO2 emissions from 361,000 tones CO2 on
2007 to 14,000 tones CO2 on 2010 2.3 BCF additional gas sales Safe and steady operating conditions will lead to lower
flaring volumes Continue to optimize and tune all our system to reduce
the volumes of gas being flared Flaring level can be monitored continuously to provide
feedback for review and follow up actions to any anomaly in order for these reductions to be sustainable
Page 22
Offshore Flaring Reduction 2007 – 2011 YTD
Page 23
Thank You
Page 24
Name : Rismal Adriansyah Title : Manager Block B Western Hub Field / Offshore Operation BU : ConocoPhillips Indonesia Education : 1991 BEng Mechanical Engineering – University of Indonesia Certificate : Profession Engineer (PE) from PII – Indonesia Vice Technical Head from MIGAS - Indonesia Service Yr : 19 year
Key Experience: • 19 years professional experience • Mechanical design & construction, Project
Management, Business Development, Operations, Asset Management
Work History : • Offshore Operation : Manager Block B Western
Hub Field • Asset Management : Coordinator Onshore
Asset • Onshore Operation : Manager Sumatra Field
Manager • Onshore Operation : Superintendent Operation • Onshore Operation : Superintendent Project
Work History (cont..) : • EPCI – Tripatra : Various position from Business
Development, Project Management, Project Engineer, Senior Mechanical Engineer.
Interests • Field development, process safety, A&OI, P & S,
System and Structure, management • Travelling, book reading and culinary Others • Married with three children's • Living at Bogor,40 km from Jakarta. Nice weather
Photo
Biographies
