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Waste Management of NORM Rejects and Hazardous Waste
in Offshore Oil and Gas Production in Brazil (2002–2018)
—
MARCELO M. VALINHAS
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Waste Management of NORM Rejects and Hazardous Waste
SUMMARY
4 CHALLENGES TO NORM WASTE DISPOSAL
2 WASTE GENERATION
1 INTRODUCTION
3 NORM WASTE STORAGE
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Oil and Gas Explorationand Production – Brazil-Campos Basin
Daily Output2.63 million barrels of oil equivalent a day. (10 thproducer in the world)
Production Wells7,265 (oil and gas)
Production Platforms113
Daily OutputOne million barrelsof oil equivalent a day.
Production Wells565 (oil and gas)
Production Platforms52
Source: www. petrobras.com.br/em/our-activities
Rio de Janeiro
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Around46,000
1
0
5 000
10 000
15 000
20 000
25 000
2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
Sludge Drums (E&P)
-
100 000 000
200 000 000
300 000 000
400 000 000
500 000 000
600 000 000
700 000 000
2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
Oil Barrels
Oil and Sludge Production– Campos Basin
Source: ANP website, 2019 - One barrelequivalent to 42 US gallonsor 158,9873 liters
Source: SIGRE, 2019 - One drumequivalent to 140 liters
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Regulations in Brazil - Clearance Level Ra 226
500
100
10 1 1
1998 2005 2012 2019
Bq
/g
CNEN - Clearance Level Ra 226 and Ra 228 (Bq/g)
Clearance level - value, established by CNEN and expressed in terms of activity concentration and/or total activity, at or below which a source of radiation may be released from regulatory control . (Source:Nuclear Safety Glossary)
RegulatoryPosition 6.02
Standard CNEN 3.01/2005
Standard CNEN 8.01/2014
First Norm Identifed
1988
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Waste Management of NORM Rejects and Hazardous Waste
4 CHALLENGES NORM WASTE DISPOSAL
2 WASTE GENERATION
1 PRESENTATION
3 NORM WASTE STORAGE
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SLU
DG
E
PRODUCTION
< 1 Bq/g
> 1 Bq/g
E&P Offshore Oil – Aspects and Impact
DISPOSAL
SCA
LE
GENERATION
Source: Petrobras – RT LO31/2017
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Contaminated Generated Waste
0
500
1000
1500
2000
2500
3000
3500
4000
4500
2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
Ton
s.
Sludge Cat.I (13%)
Sludge Cat.II (2%)
Scale (<1%)
Pipes (27%)
Equipments (3%)
Sludge (55%)
3R Waste ( 85%)
Reject ( 15 %)
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Clean Service in Offshore Tanks
4,000 ton(until 2014)
CoprocessingSLUDGE
(BG)
21,000 ton
Temporary Storage
800 ton
Industrial Landfill(after encapsulation)
1,000 ton(from 2014 on)
SLUDGE CAT I (between 0.5 and 5 µS/h)
SLUDGE CAT II (higher than 5.0 µS/h)
Temporary Storage
> 1 Bq/g
< 1 Bq/g
Clean Service Generation Disposal
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More then 79 thousand units
1,000 ton
760 Scale with NORM
190 ton
Recycled Pipes and Equipment
Clean Service
10,000 ton
Generation Disposal
Scrap Metal without NORM
± 11,000 ton
Temporary Storage
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Disposal of GeneratedWaste (2002-2018)
21184
10301
4996
1057 765187
Sludge Pipe White Sludge (CAT I) Equipament Yellow Sludge (CAT II) Scare
Ton.
Cooprocessing
Reduction andRecycling
Reduction andRecycling
StorageDisposal or
Storage
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4 PROSPECT TO NORM WASTE DISPOSAL
2 WASTE GENERATION
1 PRESENTATION
3 WASTE STORAGE
Waste Management of NORM Rejects and Hazardous Waste
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Accumulated Drums in Storage Facility
0
500
1000
1500
2000
2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
Stored Drums
SLUDGE CAT.I SLUDGE CAT.II SCARE
Standard CNEN 8.01/1401 Plataform
Decommission
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Number of drums per Storage Facility (11)
0.41
0.26
0.49
0.15
0.74
0.35
5.26
0.65
0.41
Rate Exposure (µS/h) Radeye PRD Equipment
StorageControlled
Area
Supervised
Free Area
2.371.16
Fen
ce
2.85
Sludge Cat.I
Sludge Cat.II
scale
2005 2011 2012 2013 20142015 20152015 201720182018Monitoring Area
Radon Avarage in between 14-37 Bq/m³
Worker with TLD dosymeter
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Storage Facility Control
10 5 1Rate Exposure Control by localizationRadeye PRD Equipment µS/h
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Correlation External Exposure – Activity by Waste Type
µS/h
Ra
22
6 B
q/g
Sludge Cat.I
Sludge Cat.II
scale
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1Bq/g
Exposure and Activity by Waste Type
3Bq/g
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4 CHALLENGES TO NORM WASTE DISPOSAL
2 WASTE GENERATION
1 PRESENTATION
3 WASTE STORAGE
Waste Management of NORM Rejects and Hazardous Waste
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Challenges
PRODUCTION INCREASE
PLATAFORMS DECOMMISSION
SAMPLING DRUM BY DRUM
BUILD AND LICENSING NEW FACILITY
COMMERCIAL SOLUTIONS IN BRAZIL
BEST COST TO STORE
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Challenges
3bq/g1bq/g
Conditional Dispense for the lowest Activity toRa 226 in the Sludge Category I
Exportation - RFI
CONSULTING COMPANIES
NOT REPLIED
DECLINED
REPLIED
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Marcelo [email protected]