Protection of Land Resources and Vegetation
The Company implements comprehensive programmes to reclaim disturbed and contaminated land and sludge pits taking into account the climatic, hydrological, soil and vegetative conditions of the regions. The programmes feature an inventory of the land, an assessment of the soil contamination level and the selection of the most effective rehabilitation technology. As part of the reclamation process, work is performed to remove dead wood, collect oily liquids and conduct the technical and biological stages of reclamation. Gazprom Neft annually conducts an assessment of the quality of environmental restoration work, including chemical and analytical monitoring.
The Company is committed to reducing pipeline failure rates and the area of contaminated land. In order to meet these objectives, Gazprom Neft has employed a project since 2014 called “Clean Territory” that includes measures involving diagnosis, reconstruction, targeted repairs, inhibiter protection and corrosion monitoring. Thanks to the project, the number of failures over this period was 12% less than the projected level. A total of 442 km of pipelines were replaced in 2015.
|Ratio of area of contaminated land at the end of the year vs. at the start of the year, ha/ha||0.18|
|Specific amount of spilled oil, condensate and petroleum products as a result of accidents and leaks, kg/t of extracted hydrocarbons (TOE)||0.003|
“GREEN” SEISMIC SURVEY METHOD
In 2015, Gazprom Neft continued implementing the first “green” seismic survey methods employed in Russia. The Company completed seismic exploration work at the West Luginetsky licence area in the Tomsk Region utilising new wireless equipment. The wireless system also generates substantial time efficiencies, particularly since sensors can be quickly placed and moved across uneven terrain. The clearing width required for the installation of sensors is almost a third smaller than that of conventional technologies. Utilising “green” seismic surveys has enabled the Company to cut in half the amount of forest felled in exploration work.
In addition to reducing our environmental footprint, the new method significantly improves industrial safety levels since logging traditionally involves a high risk of injury. The fact that not a single occupational or industrial safety incident was recorded during the seismic exploration work conducted at the West Luginetsky licence section is a testament to this method.
Key Gazprom Neft projects to improve the reliability of pipelines in 2015:
- The use of advanced technologies to lay pressure pipelines that will connect the Messoyakha group of fields with the northernmost point of the Zapolyarye-Purpe oil transportation system. Semi-automatic and automatic welding guarantees the high quality of pipe joints and ensures the reliability of the oil pipeline. A fibre-optic cable that records any risks of depressurisation of the system will be routed along the entire route. The construction of the pipeline is to be completed in late 2016.
- The commissioning of a mobile laboratory for the non-destructive testing of pipelines at Gazpromneft-Noyabrskneftegaz. The equipment allows for the remote monitoring of the technical condition of main pipelines using
X-ray equipmentas well as ultrasonic flaw detection and thickness devices.
- The commissioning of a pressure pipeline monitoring system using drones at Gazpromneft-Muravlenko. Drones provide continuous remote control of pipeline integrity in real time, including at remote sections of fields, and reduce emergency response time.