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古龙1井是松辽盆地最深的一口探井,完钻井深6300m。针对四层井身结构、大尺寸井眼较深、地温梯度高、岩石可钻性差、研磨性强等技术难点,进行钻头优选攻关研究,确定合理钻头使用序列,并与多项新工艺、新技术相结合,顺利完成了该井的施工,对松辽盆地深层的钻头序列优选具有重要指导意义。
Gulong 1 well is the deepest exploration well in the Songliao Basin with a drilling depth of 6300m. Aiming at technical difficulties such as four-layer well structure, large-sized borehole, high geothermal gradient, poor rock drillability and strong abrasiveness, etc., the drilling bit optimization research is conducted to determine the reasonable drill bit sequence, and with a number of new processes and new Technology, the successful completion of the well construction, deep drill bit sequence optimization of the Songliao Basin is of great guiding significance.