Mechanisms of in-advance failures in water injection wells

Thanks to the application of water injection in carbonate reservoirs in the Tahe Oilfield, oil productions were improved obviously. The water injection wells in different regions displayed unique dynamic characteristics when more wells were injected with water and more water was injected in wells. After water injection failure, the cumulative injection production ratio was much lower than that of the other wells in the area. Productions decreased sharply when water injections failed in advance.