Emulsion for the extraction of tight oil.
Emulsions for producing tight oil – a new Russian scientists synthesized reagents that significantly increase the recovery factor heavy oil. They allow to increase the coefficient of oil displacement by 30% or more.
Emulsion for producing tight oil – a new Russian scientists synthesized reagents that significantly increase the recovery factor heavy oil.
The extraction of difficult oil is one of the most urgent problems of Russian oil and gas industry. It is 60-70 % of the total stock of resources available in the country.
In the process of extraction of oil there are three phases: the first – oil is supplied from the reservoir under the action of the natural forces that support the high pressure in the reservoir. In the second phase, development is carried out by maintaining the reservoir pressure in the reservoir by injection of water or (and) gas. During the first two stages are able to produce from 25 to 40% of the reserves. The third stage – extraction of tight oil requires special technologies to increase oil recovery. Without them, more than half of the reserves of all fields will remain underground.
Methods of producing tight oil is the technology of flooding the reservoirs with solutions of polymers, surface-active substances (surfactants) or emulsion compositions.
Polymers and surfactants in this regard are not very beneficial on a number of factors, for example, they have a low bio – resistance and require additional processing specialized expensive reagents.
Emulsions, in contrast, is very close in composition to the hydrocarbon, which is their advantage. New reagents-emulsion is manufactured on the basis of domestic raw materials. They are 2.5–3 times cheaper than imported counterparts. Not only not inferior to imported products in quality, but superior in their efficiency. In particular, extend the “life” of the emulsion.
Emulsions for producing tight oil presents three new emulsifiers and stabilizers for emulsions. The composition of some of them are nanoparticles that improve the performance of the reagent (antioxid silicon, nano-carbon materials, nanodiamond particles, etc.). Based on these reagents, you can create dozens of different emulsion formulations and choose the composition that is optimal for a particular field.
The effectiveness of new formulations of oil-displacing system is confirmed by experiments. In tests it was found that the new emulsions for producing tight oil allow to increase the coefficient of oil displacement by 30% or more.
– increase in the coefficient of oil displacement by 30% or more,
– increased service life
2.5-3 times cheaper than imported counterparts.