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架試驗和油氣田現(xiàn)場試驗的效果為依據(jù)，探討三牙輪鉆頭的改進方向。
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.
井壁模式分析說明，牙輪鉆頭的側(cè)向切削過程不僅與齒面結(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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