通过对TD地区GC区块钻井难点分析，提出了以钻头优选、复合钻井、液动旋冲钻井为主的提速技术，取得了良好的施工效果。%This article provides access for drilling speed acceleration which include bit selection,composite and hydraulic rotary percussion drilling based on the analysis of difficulties occurred when drilling in GC Block,TD area.
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