Discharge
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Water

Discharge

Última actualización 25 nov. 2014

The discharge of wastewater during 2011 was 73.98 million m3, similar to the volume discharged in 2010, which value was modified from that stated in the previous year´s report, due to a review and adjustment to the data provided by the operation.

DISCHARGE TYPE VOLUME DISCHARGED
(Millions of m3)
2009 2010 2011

Domestic wastewater

0.39 0.76 1.02
Industrial wastewater 87.89 72.9 72.92
Other*   0.19 0.06
TOTAL 88.28 73.85 73.98
*Other: Spraying and infiltration.


The number of discharges by destination increased compared with the previous year.
 

YEAR SURFACE SEWAGE SYSTEM OTHER TOTAL
2009 310 12 59 381
2010 199 22 98 319
2011 176 14 178 368


19% of the discharges are located in critical areas according to the Potential Water Quality Affectation Index.

Water re-injection 

In 2011, 74.4 million m3 was re-injected for the purposes of secondary oil production (enhanced recovery type re-injection) or disposal type re-injection. The increase was due to re-injection projects that were carried out in all production departments, except in the Catatumbo Management Department in the Orinoco. 
 

QUANTITY OF PRODUCTION WATER RE-INJECTED (millions de m3)
2008 2009 2010 2011
6.8 6.4 27 74.43