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1987年夏季,在密苏里州(Missouri)艾奇逊县(Atchison County)境内完井3口,这3口井都在埋深不到2900ft 的地层内获得了泵抽100bbl/d 以上的产能。1987年秋季,阿莫科(Amoco)公司在衣阿华州(lowa)卡罗尔县(Carroll Coun-try)封堵了它的艾斯奇德(Eischied)1号深探井。据报导,其总深度超过17000ft。这是衣阿华州仅有的一口深探井。在南部的浅油井和北部的深干井之间的广大面积内所钻的任一深度的深井或浅井只作过极少的测试。发现油的地方和阿莫科公司所钻井之间的距离为200mi(1mi=
In the summer of 1987, three wells were drilled in Atchison County, Missouri, each of which received more than 100bbl / d of pumping capacity in a formation of less than 2,900ft. In the fall of 1987 Amoco blocked its Eischied 1 Deep Well in the Carroll Coun-try in Lowa, Iowa. It is reported that its total depth exceeds 17000ft. This is the only deep exploration well in Iowa. Only a few tests have been conducted on deep or shallow depths of any depth drilled in the vast area between the southern shallow well and the northern deep well. The distance between the place where the oil was found and Amoco was drilled was 200mi (1mi =