ABSTRACT
The most significant difference between carbonate and sandstone reservoirs is the presence of significant macroscopic heterogeneity in carbonate reservoirs. With the expansion of the development of oil reservoirs, the number of wells with a high water cut has gradually increased, resulting in a significant reduction in oil production. In this research, using the carbonate reservoir X with edge and bottom water as an example, the method of static and dynamic combination is used to determine that the bottom water cone is the primary kind of water production for the high water cut well. At the same time, the primary factors that influence water production are investigated. In the X reservoir, it is considered that the high-permeability strata and barriers have complete control over the high-water-cut wells, and that the high production rate is also the primary factor driving the quick growth in water cut. Finally, effective countermeasures for high-water-cut wells were proposed in accordance with the key controlling variables of high-water cut wells, as well as practicable remedies. It has been demonstrated on the oilfield through actual effect feedback that the countermeasures are successful in reducing the water cut of high water cut wells through actual effect response.
