Environment Report 2017
ENVIRONMENT REPORT 2017
Figure 2: Total Produced Water Discharged to Sea and Reinjected versus Production
300
2,000
Produced Water Discharged Produced Water Reinjected Production
1,800
250
1,600
1,400
100 Produced Water (Million m 3 ) 150 200
1,200
1,000
800
600
Production (Million boe)
400
50
200
0
0
2016
2015
2014
2013
2012
2011
2009
2010
2005
2006
2007
2008
2003
2004
2000
2001
2002
Source: EEMS July 2017
International Comparison The International Association of Oil & Gas Producers (IOGP) reports that globally 0.6 tonnes of producedwater were discharged and 0.5 tonnes were reinjected per tonne of hydrocarbon produced (both onshore and offshore) by IOGP member companies in 2016 4 . In comparison, 1.8 tonnes of produced water were discharged and 0.6 tonnes reinjected per tonne of hydrocarbon produced on the UKCS during 2016. This reflects the maturity of the UKCS and its technically challenging environment compared to other basins around the world. It is therefore to be expected that more produced water is generated in the UK than the global average. When comparing specifically with Norway, 2.4 tonnes of total produced water were generated per tonne of hydrocarbon on the UKCS in 2016 compared with 0.8 tonnes of produced water per tonne of hydrocarbon on the Norwegian Continental Shelf 5 . This is because many of the larger fields in Norwegian waters are yet to reach high levels of water as a percentage of total production and new fields with high levels of daily production are continuing to come on-stream. Similarly to the UK, 24 per cent of total produced water is reinjected into the subsurface.
4 See IOGP Environmental Performance Indicators 2016 at http://www.iogp.org/data-series 5 See Norsk Olje & Gass Environmental Report 2017 at http://bit.ly/NorskEnvironRep17
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