— Having heard about this technology, we are at their mine invited Americans — says one of the authors, Ph.D. Ivan Gayvoronskiy. — There are 40 low-productivity wells. Like, show what you are capable of. We managed to increase production somewhere in half, and in some cases even more. And then the Americans realized it, too, began to engage in this technology.
In general, the oil paradoxical situation. Its reserves on the planet shrinking like shagreen leather, and at the same time leave the underground oil producers on average 60-70 percent of "black gold". On the best fields can extract only half the reserves.
— Today in Russia idle 43,000 wells, or a quarter of the total — said Gayvoronskiy. — A variety of reasons. For example, the low profitability — instead of ten tons per day is produced only two. A lot of wells heavily flooded, there is extracted per ton of fuel and 100 tons of water. It is clear that it is not profitable, and the production of such canned.
Incidentally, the Russian oil extraction rate now slipped to 25 per cent, compared with 38 during the Soviet era. The rule of law, of a powerful private trader: to take as much as possible now, and then what — let descendants suffer. And the services of the new owners have a "master key" — the so-called hydraulic fracturing. What is under tremendous pressure fluid is pumped into the reservoir, which it breaks, creating a rift in the tens of meters in length. This allows you to produce a powerful effect in 2-10 times more oil from the well. But such a "tear" does not go to the well completely and soon turns her weakness. And most importantly — the land remains under the lion’s share of reserves. Development of Russian scientists can reach them. Anyway, revive and reactivate many wells, which predict cross.
— The thing is — explains Gayvoronskiy. — The main obstacle to the movement of oil is only 2-5 meters around the well. Here, as in the spring of river traffic jams, converge coming from the most distant areas of the reservoir oil streams, forming a "bottleneck" and interfering with each other to move. Hence the idea — not at all affect the formation, as in a powerful hydraulic fracturing, but only on this critical area. Extend the layer closest to the hole, creating a channel for the movement of oil.
In well drained powder generators pressure and, if necessary to enhance the effect, add flammable compound. Emerging hot gases creates a high pressure and a lot of holes made in the well, affect the formation, creating channels in it to move the oil.
It seems that the idea is not so much a revolutionary, even obvious. Moreover, in this way in the past have tried to increase production. But the method has not gone as he was completely unmanageable, and thus uncontrollable. Act is called, at random, so do not know what happens in each case.
Scientists have managed to VNIPIvzryvgeofizika "ones" brute technology, making it manageable. This mathematical model was created formation, studied various modes of action on it. As a result, there was a new technology that works individually with each layer of concrete, offers the most optimal modes of influence on it. Moreover, created a range of different devices under certain conditions of production. It’s much expanded range of possible applications.
— For example, the known reservoirs bazhenity, where more than 10 billion tons of oil, but it is very difficult to extract — says Gayvoronskiy. — It is almost impervious clay rocks where oil can only move through the artificial cracks. Similar resources are available in the North Caucasus, in layers — the so-called hadumitah. There have tried to use our technology, and well before the idle, put into operation with a capacity of 30-40 tons per day.
Today, Russian scientists developed the technology is already used in the fields of the Urals, the Volga Region, Western Siberia, Kazakhstan, Turkmenistan, Lithuania, Vietnam. Extraction wells by increasing the average 1.5-3 times, and in some cases 8-9 times. The annual economic impact is estimated at three billion rubles.