Sustainability Report
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Waste management and decommissioning


The linear production model has placed great pressure on the environment and natural capital, generating impacts related to the extraction of natural resources and the generation of solid waste. In view of this, we have undertaken efforts to continuously improve the management of our products throughout their life cycle and have sought to close our processes in light of the circular economy, reinserting waste into the production cycle in order to minimize its final disposal in the environment and the need for of raw material extraction.

We recognize the relevance of sustainability for our business throughout the production chain. Therefore, we have advanced in relation to our previous commitment of zero growth in the generation of waste from processes by 2025, and we are now committed to a 30% reduction in the generation of solid waste from processes by 2030, with the allocation of 80% of this waste to routes for use, recycling and recovery (RRR) by 2030.

To this end, we have developed circularity actions to allow the reuse of our waste as raw material for petroleum products, and in other production processes. The effectiveness of these initiatives is monitored through indicators that measure the amount of waste generated and the percentage destined for use, recycling, and recovery routes.


Since 2013, we have adopted circular economy practices in our activities to prevent the generation of solid waste, with emphasis on the reuse of oily sludge in the production of shale oil and green petroleum coke. These practices made it possible to reduce the generation of hazardous waste by more than half, from 260,000 tons to 98,800 tons in nine years, minimizing any negative impacts on the environment and people . 

As for non-hazardous waste, in 2022 we internally recycled 569 m³ of construction debris for the purpose of using these recycled aggregates in paving access roads and topographic conformation at the Gaslub Cluster works site.

As one of the forms of external evaluation of our solid waste management and performance, we participate annually in the evaluation process of the Dow Jones Sustainability™ World Index (DJSI World). Within this aspect, in 2022, we obtained the highest score in the DJSI World in questions related to Waste Disposal and Hazardous Waste of the “Operational Eco-efficiency” criterion. This recognition reinforces the quality of our management for this topic. 

Generated waste

In 2022, the generation of hazardous and non-hazardous solid waste in our processes was 98.8 thousand and 150.0 thousand tons, respectively, totaling 248.8 thousand tons of waste. The generation of waste from processes in 2022 was the best performance in the last four years, the result of the sum of the circular economy actions implemented and the occasional reduction in non-continuous cleaning and maintenance activities. 

In order to achieve our new ESG waste commitment, we are planning new circularity actions, operational optimizations, sustainable hiring, and workforce training and awareness, to reach 2030 generating a maximum of 195 thousand tons of process waste.



Waste disposal

In 2022, we disposed 110.3 thousand hazardous and 161.8 thousand non-hazardous tons of waste from our processes . The proper management of our solid waste allowed 88% of the hazardous waste mass generated in the processes to be sent to RRR routes. The total hazardous waste from processes destined for non-RRR routes was 13.1 thousand tons, therefore, lower than the established limit for the year (22.2 thousand tons). 

Also in 2022, 68% of the mass of non-hazardous solid waste from the process was destined for RRR routes. The disposal of non-hazardous waste from processes for non-RRR routes was 51.8 thousand tons, therefore, lower than the established limit for the year (91 thousand tons).

In total, 76% of the mass of hazardous and non-hazardous solid waste from the process was destined for RRR routes, which reiterates our efforts to adopt circular economy practices and puts us on track for our new ESG commitment to dispose of 80% of waste process solids for RRR routes by 2030.




Drilling fluids

In 2022, we generated 2.6 thousand tons and disposed of 2.1 tons of cuttings and water-based fluids from exploration and production processes in land operations or landed from offshore operations . We also generated and disposed of 4.7 tons of cuttings and non-aqueous based fluids. We adopted alternatives for environmentally appropriate treatment or final disposal of these materials. 


From oily sludge were generated 38.7 thousand tons and destined 41.5 thousand tons. For this parcel, which is not reused as raw material for petroleum products, environmentally appropriate treatment or final disposal alternatives are adopted.

Decommissioning process

The E&P portfolio active management process must take into account issues related to the decommissioning of assets. This is a legal requirement when the life cycle of the production system ends, or within the scope of area revitalization projects, replacing old systems with new ones. It is thus a natural process within the production cycle of the oil and gas industry.


In compliance with resolution no. 817/2020 of the ANP, the Facilities Decommissioning Programs (PDI) are evaluated and approved by the ANP, Ibama and the Navy, within the limits of their attributions. 


In 2022, we obtained approval from the Brazilian regulatory bodies for the decommissioning of FPSO Capixaba, in the Jubarte field, in Espírito Santo, as well as completing the unmooring of the P-07 platform in February. In addition, we have progressed with approval stages for decommissioning of other production systems, such as the P-33 and P-26, and we continue to carry out disconnection operations and removals of subsea equipment already approved for decommissioning projects underway in the Campos Basin, highlighting those related to the project to revitalize the Marlim field. We also abandoned 13 wells and disconnected 50 risers.


Onshore decommissioning processes

As with offshore decommissioning activities, the abandonment of assets located on land is subject to the same corporate system, obeying the same criteria to ensure the execution of the best alternative to the dismantling of onshore installations.

In the case of onshore assets, the process involves several stages such as inspections, cleaning and decommissioning of pipelines, permanent plugging of wells, razing and environmental recovery of locations with authorization from regulatory bodies and in accordance with applicable legal requirements. 

In 2022, we decommissioned 44 onshore wells in several concessions.

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