与常规钻井相比，室内模拟钻井试验条件下负压脉冲射流辅助钻井可以使钻速提高0.7-3.0倍。
The rate of penetration of the negative pulse jet assisted drilling can increase from 0.7 to 3.0 in in-house simulation drilling compared to conventional drilling.
系统介绍了胜利油田临盘地区1991年首次应用MMH泥浆进行钻井试验以来该泥浆的推广应用情况。
This paper systematically introduced the generalization of MMH mud, since it was first used in 1991 to conduct a drilling test in Linpan area of Shengli Oilfield.
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.
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