roller bit

基本解釋

In this paper, on the basis of the results obtained from the bench and field tests of the three roller bit, its improving direction is approached.
本文以三牙輪鉆頭的臺(tái)架試驗(yàn)和油氣田現(xiàn)場(chǎng)試驗(yàn)的效果為依據(jù)，探討三牙輪鉆頭的改進(jìn)方向。
Analysis of the side-wall pattern shows that the side-cutting process of the roller bit is related to not only the teeth surface design but also the rock property and the drilling parameters.
井壁模式分析說(shuō)明，牙輪鉆頭的側(cè)向切削過(guò)程不僅與齒面結(jié)構(gòu)有關(guān)，而且與巖石性質(zhì)、鉆井參數(shù)有關(guān)。
The investigation directions of the high speed roller bit sealing are put forward in the future.
針對(duì)這些情況提出高速牙輪鉆頭軸承密封在今后的研究方向。
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