Simulation and Study of the Effect of the Length of the Completed Zone in Horizontal Wells on the Phenomenon of Water Coning with a Focus on Identifying Optimal Well Completion Conditions
Subject Areas :
1 -
Keywords: Water Coning Phenomenon, Horizontal Well, Well Completion Zone Length, Simulation, Water Cut Percentage,
Abstract :
The phenomenon of water coning represents the mechanism of water entering the lower parts of oil formations into oil production wells. The phenomenon of water coning will have a significant impact on reducing the rate of well utilization and production, followed by a decrease in the rate of discharge and, as a result, the overall recovery efficiency of oil reservoirs. This phenomenon is also one of the most important and fundamental issues and problems in oil wells, which has a great impact on final production, increasing operating costs, and also creating environmental problems. This article simulates and studies the effect of the length of the completed area in horizontal wells on the phenomenon of water coning, focusing on identifying the optimal conditions for well completion in an oil field using Eclipse software. For this purpose, initial field data including geological, petrophysical, and reservoir information are used as software inputs, and this phenomenon is simulated in the field. In this study, the effect of the length of the completed area in the field on the amount of produced water cut has been evaluated. The results of this study show that increasing the length of the completed area in horizontal wells leads to a decrease in the percentage of produced water cut. For example, in a well with a fixed length, increasing the length of the completed area from 300 to 600 feet has caused a decrease in the percentage of water cut, and this pattern has also been observed in wells with lengths of 9000 and 12000 feet.
