分析港口作业中平仓机操作安全的重要性，介绍了新研制的平仓机载荷限制器。
Analysing the importance of the security during manipulating the scraper on harbor - operation, a new developed load limiter of scraper is introduced.
在平常的不压井起下钻作业中，管柱下入井眼是依靠其自身重量，不需要附加的向下载荷或者推力。
In ordinary stripping operations, the pipe falls into the wellbore under its own weight, and no additional downward force or pushing is required.
建立了高温高压油气井测试、采油等作业中因井筒温度发生变化导致的套管附加载荷计算模型。
A mathematical model for calculating the additional load on casing because of temperature changing during testing and production operation in HPHT well is established.
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