The main reason causing the low restoring rate of the smallgauge casing damaged Wells in Daqing Oilfield is the inefficiency of drifting and reaming technology.
大庆油田小通径套损井修复率低的主要原因是套损井段扩径、找通道技术不过关。
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In this paper, the application of high speed steel compound roll in splitting rolling of smallgauge hot rolled ribbed bars at bar Plant of Shandong Shiheng Special steel Group co.