Innovations in production
One of the priorities for Gazprom Neft’s innovative development is technology that ensures the strategic goals of increasing production and enhancing the technological efficiency of oil refining. The Company has introduced a long-term technological planning system that identifies long-term technological challenges and the solutions needed to deal with them.
The Company acquires third-party technologies and also develops its own targeted solutions as part of its technological development.
The Company has had a Technological Strategy for exploration and development since 2014. Technological challenges were grouped into ten priority areas.
The Company launched roughly 70 technological projects during the reporting year that are being implemented jointly with leading Russian and foreign technology developers (research organisations, universities, oilfield companies, IT solution developers and engineering companies).
Completion of the first stage of the study of the Bazhenov formation at the South Priobskoye field. The work resulted in confirmation of the existence of mobile oil reserves. After hydraulic fracturing operations were performed at all the wells, a flow of hydrocarbons was obtained with varying intensity.
At the Priobskoye field, LLC Gazpromneft-Khantos has introduced innovative non-spherical hydraulic fracturing technology that eliminates restrictions on the number of stages in a single bore. This technology will enable the Company to develop additional hard-to-recover reserves.
The drilling of the first horizontal well has been completed at the Novoportovskoye oil and gas condensate field. This marks the first time a dual well has been drilled in Arctic conditions. The drilling of extra-long dual wells intensifies hydrocarbon production while simultaneously reducing infrastructure costs.
|Integrated conceptual design tools||A software module called ‘Surface Infrastructure Development’ is being developed and its introduction will help to improve the economic efficiency of projects by optimising the infrastructure development of multiple well platforms and in-field communications.|
|In the second half of 2015, Salym Petroleum Development completed the installation of equipment and began pumping into injection wells as part of a pilot soda-surfactant-polymer flooding project. The results are expected in 2016.|
|Utilisation of associated petroleum gas||The Company has successfully completed the pilot testing of innovative soft steam reforming technology to process associated petroleum gas developed by the Boreskov Catalysis Institute of the Siberian Branch of the Russian Academy of Sciences. The new technology is recommended for introduction at the Company’s enterprises in order to enhance the utilisation of associated petroleum gas at small and remote fields.|
|Import substitution of technological equipment||OJSC Gazpromneft-NNG has successfully completed the first stage of testing at the Vyngapurovskoye field on the first Russian rotary-controlled system produced by OJSC Elektropribor State Research Centre Concern.|
One method for enhancing oil recovery efficiency that is commonly used in Russia is flooding where water is employed as a displacing agent. Pumped into the subsoil resources via special injection wells, the water pushes the oil towards the production wells acting as a kind of piston. The efficiency of the process can be enhanced additionally by pumping special solutions into the formation, which include surfactants that flush away the residual oil by reducing surface tension at the boundaries with the rock and the water as well as a thickening agent — a polymer that allows for levelling out the injection front and increasing the sweep.
Gas treatment technology
Associated petroleum gas is an integral component of oil production at almost all fields. In order to increase the APG usage level, Gazprom Neft is implementing a number of projects that will make it possible to efficiently process it directly in the regions of production. One of the most commonly used gas treatment technologies is the low-temperature separation of APG into natural gas liquids (NGL), dry stripped gas and natural petrol. The petrol can then be used as fuel or gas and pumped into a pipeline, while NGL is used as a raw material for the petrochemical industry.
However, the construction of a gas processing plant and infrastructure to transport NGLs is a project that would only be economically justified if significant volumes of APG are utilised. Cost-effective processing methods such as mild steam reforming technology are needed for small amounts of raw materials. Such technology makes it possible to convert NGLs contained in APG into methane and obtain a gas that is suitable for use in the power industry and gas pipeline transportation.