ETCT technology was tested on over a hundred, mostly several decades old, heavily-watered, and shut-in wells in Russia. The results far exceeded our expectations. Production increased by at least double and, in some cases, as much as fifteen-fold, compared to pre-treatment values.
In Texas, we applied ETCT on a well in Texas, USA, that had been shut down since 1999, with a 99.5% water-to-oil ratio (WOR). When the well was originally opened in 1994, initial production was 35 barrels per day, gradually decreasing to zero, despite all efforts to push the oil to neighboring wells. After the ETCT treatment, the well immediately produced 38 barrels of oil per day, and the WOR was reduced to below 60%. This demonstration proved the efficacy of ETCT and, after several days of increased production, the well was closed again and the demo was evaluated as a success.
A recent demonstration was done in the north of Russia on an old, non-productive well for Lukoil. Approximately 20 tons of chemical reagents were pumped continuously into the well over several hours. We calculated that some 75 GJ (38 million BTU) of heat was released, and the chemicals all converted into gases. Temperatures quickly reached the target value, slightly above around 300°C (600°F), and were maintained at this level, entirely at our control.
The well produced 695 extra tons of oil over the next 90 days, resulting in a net profit exceeding USD 1 mil. Two years after treatment, production still remained 30-40% above pre-treatment levels.
This large-scale demonstration proves that we are able to quickly and safely pump a (practically) unlimited amount of reagents, while fully regulating the process.
Old, shut-in wells can be re-opened and made productive again. The increase in production continues steadily for many months, up to two years, and it continues to be relatively high even when the collector cools down. The well is then ready for another ETCT treatment to increase production again.
We are ready to demonstrate our technology on oil fields anywhere in the world.