AN EFFECTIVE METHOD OF HIGH-VISCOSITY OIL RESERVOIR DEVELOPMENT
An experiment has been conducted at a large oilfield with Permian and carbon reservoirs of high-viscosity oil. The experiment consisted in alternating injection of water and a small part of oil (less than 10 % of total input) into one injector. Although the injected oil contained only 20...25 % of high-viscosity oil, and only 35 % of the input went into the 2 adjacent producers, the oil production gains in the latter made up for the injection. In the future, when injecting own produced and dead high-viscosity oil into injectors, oil production growth in surrounding wells can be expected to exceed oil input by 12,7 times.