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一、问题的提出 卜弋井田于1960年发现,1969年提交详查最终报告并相继开发。1973年审批地质报告,当时提交的储量居苏南之冠(现居第三位)。井田储量一水平占8.2%,钻孔密度13.79个/km~2;二水平占14.58%,钻孔密度25个/km~2;三水平占28.64%,钻孔密度8个/km~2;四水平—800为远景储量占48.58％,钻孔密度3个/km~2。原设计井型21万t/年,现核定为6万t/年。1976年投产以来至1986年其间最高年产量为5.31万t。现一水平已经结束,总计生产原煤25.97万t,储量利用率为35.73％。目前正在二水平“择优开采”。
First, the issue put forward Pu Yi Tian discovered in 1960, submitted in 1969 detailed report of the final report and have been developed. Approved the geological report in 1973, at the time of submitting the highest level of reserves in southern Jiangsu (now in third place). Minefield reserves of a level of 8.2%, drilling density of 13.79 / km ~ 2; two levels accounted for 14.58%, drilling density 25 / km ~ 2; three levels accounted for 28.64%, drilling density 8 / km ~ 2; Four levels of -800 for the long-term reserves accounted for 48.58%, drilling density 3 / km ~ 2. The original design well 210,000 t / year, is now approved for 60,000 t / year. Since its production in 1976 to 1986, during which the highest annual output of 53,100 t. The current level is over, a total of 259,700 tons of raw coal production, reserves utilization rate of 35.73%. Currently in the second level “preferred mining.”