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自1969年我国首次在淮北朔里煤矿南风井钻井法试验成功以来,煤炭系统已先后钻成各种类型的34个矿井井筒,累计总成井深度6436m,其中最大的钻井直径9.0m、成井深度为508.2m。目前正在钻井施工中的还有钻进直径9.3m、预计深度488m的淮南谢桥矿西风井。
Since 1969, for the first time in our country, the coal mine in Huaibei Shuoli coal mine has successfully drilled into the wellbore of various types of 34 mine shafts. The accumulated well depth is 6436m, of which the largest drilling diameter is 9.0m and the depth of well completion 508.2m. Drilling is currently under way and drilling diameter of 9.3m, the expected depth of 488m Huai’nan Xieqiao mine Westwind wells.