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.

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。

youdao

For a long time, computer simulation drilling process has been used by domestic and foreign scholars, especially in recent years a great progress has been made.

长期以来用计算机数值模拟钻井过程一直受到国内外学者的重视，特别是最近几年来已经取得了很大的进展。

youdao

For a long time, computer simulation drilling process has been used by domestic and foreign scholars, especially in recent years a great progress has been made.

长期以来用计算机数值模拟钻井过程一直受到国内外学者的重视，特别是最近几年来已经取得了很大的进展。

youdao