Abstract
Production of oil and gas in production wells or reservoirs gradually decreases over time due to the accumulation of production interfering substances. This problem can be solved relatively simply and economically by injecting acid to remove these substances. However, proper acid treatment design and field operation are crucial due to the possibility of the formation incurring damage and for more effective stimulation of the reservoir. In this study, the overall process of matrix acidizing for oil wells in southern Alberta, Canada is summarized, together with descriptions of demonstration cases in preliminary research, acid treatment design, and field application process.
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