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2013年5月20日,彩512井一周来已累计正常排液143.2m3,压裂效果良好,当天试气日产气1 200m3。这标志着我国首次在2 500m以下的深层煤层应用套管压裂改造获得成功。
On May 20, 2013, Well Cai-512 had a total of 143.2m3 of normal drainage fluid in a week. The fracturing effect was good. On the day of the test, gas production was 1 200 m3 per day. This marks the first successful application of casing fracturing in deep coal seams below 2 500m in China.