New study reveals potential for increased coal-bed methane production.
The researchers studied how sensitive a coal-bed methane reservoir in the Southern Qinshui Basin is to factors like velocity, water, alkaline substances, and stress. They found that the reservoir is moderately to weakly sensitive to velocity and water, but adding a small amount of KCl can help reduce water sensitivity. The reservoir is weakly sensitive to alkaline substances, which can dissolve quartz sand. It is strongly sensitive to stress, with irreversible damage occurring in 55.88% of cases. Strengthening reservoir protection can increase coal-bed methane production.