摘  要:捞油绞车是进行捞油工作的主要工具，它具有很多的优点，有效地解决了低产井的开采工作。但是捞油绞车井口密封问题一直得不到很有效解决，这一点在很大程度上限制了它的应用。本文从该课题背景和意义出发，首先介绍归纳了几种捞油绞车井口的密封方法，对它们的性能进行了比较，分析出各自的优缺点，同时提出旋转密封的设想。

　　　通过研究计算，本文提出捞油绞车井口旋转密封的整体方案，并对零部件的尺寸进行计算，并估算出泄漏量，找到最优的设计方案。该文还描述了选择零部件时注意的问题以及选用原则，同时对零件进行比对，找到适合该设计的零件，并配以图表加以说明。

关键词：抽吸作业  钢丝绳  旋转密封  二级密封

Abstract:Oil hoist is the main tool for oil work, it has many advantages and can effectively solve the low yield of well drilling work. But the oil winch wellhead sealing problem can't be settled effectively, it is largely limited its application. Based on the topic background and significance, this paper first introduces summed up several oil winch wellhead sealing method, to compare their performance, analysis their respective advantages and disadvantages, and puts forward the design of rotary seals.

　　　Through research, this paper proposes the oil rotation winch wellhead sealing overall plan, and a calculation is made to the size of the parts, and to estimate the leakage, to find the optimal design scheme. This paper also describes the choosing parts problems as well as the selection principle, compare the parts at the same time, to find suitable for the design of parts, and matches by the chart.

Key words: Pump operation; steel wire rope; rotating seal; secondly seal;