Through drilling experiment in 156 adjustment Wells, the drilling behaviors, cutter wear, downhole jet flow field and drilling effect of drag bits and roller ones were comparatively analyzed.
通过156口调整井钻井试验，对比分析了刮刀钻头和牙轮钻头的钻进特性、牙齿磨损特性、井底流场特性及钻井效果。
Through drilling experiment in 156 adjustment Wells, the drilling behaviors, cutter wear, downhole jet flow field and drilling effect of drag bits and roller ones were comparatively analyzed.
通过156口调整井钻井试验，对比分析了刮刀钻头和牙轮钻头的钻进特性、牙齿磨损特性、井底流场特性及钻井效果。
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