Key Gazprom Neft projects to improve the reliability of pipelines in 2016
The use of advanced technologies when building a 96-km pipeline with capacity of 7 million tonnes of oil per year 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 in the system will be routed along the entire route.
The use 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 equipment as well as ultrasonic flaw detection and thickness measurement devices.
New pipeline diagnostic methods. The magnetometric method is based on recording magnetic fields and makes it possible to identify zones of localised corrosion. Gazpromneft-Noyabrskneftegaz conducted successful tests of the device in late 2015. The development of internal pipeline indicators will make it possible to conduct diagnostics on small-diameter infield pipelines (up to 219 mm), which are the most prone to corrosion.
Gazprom Neft reclaims disturbed and contaminated land and sludge pits taking into account the climatic, hydrological, soil and vegetative conditions of the regions. The reclamation programmes involve an inventory of the land, an assessment of the soil contamination level, the selection of the most effective rehabilitation technology and an assessment of the quality of environmental restoration work, including chemical and analytical monitoring.
Since 2014, the Company has been implementing the ‘Clean Territory’ project, which aims to reduce pipeline failure rates and the area of contaminated land. The project includes diagnostics and monitoring of corrosion, the reconstruction and replacement of roughly 400 km of pipelines per year.
The Company introduced the approach of recycling drilling waste at temporary storage sites without building sludge pits in 2015 and continued to successfully utilise this approach throughout 2016. Drilling waste is recycled with the construction material obtained subsequently being used to eliminate temporary drilling waste storage sites and also at other facilities in accordance with its designated purpose.
Specific land protection indicators in 2016
Ratio of area of contaminated land at the end of the year vs. at the start of the year
Specific amount of spilled oil, condensate and petroleum products as a result of accidents and leaks