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)
|*Other: Spraying and infiltration.|
The number of discharges by destination increased compared with the previous year.
19% of the discharges are located in critical areas according to the Potential Water Quality Affectation Index.
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)|