51∕2in套管打捞器设计（毕业学术论文设计）.doc

PAGE 5 1/2in 套管打捞器设计 摘要：在油井的开发过程中，经常遇到井下管柱既不能倒开也无法活动解卡的问题，在这个时候就需要打捞工具来解决。对此类问题，以前大多使用磨铣工具来处理，但是磨铣作业不仅时间长，效率低，而且在经济上很不划算。为此本文设计了一种集套管切割和打捞于一体的套管打捞器，这是一种利用液压驱动的原理来进行套管切割和打捞的一种打捞工具，其不仅可以顺利的对套管进行切割和打捞，而且可以很好的解决磨铣作业中存在的不足之处。本文重点介绍了这种套管打捞工具的工作原理，结构及其方案的具体设计与方法。 关键词：套管切割；打捞；一体  Design Abstract: In the development process of the well, We often meet the problem that down-hole string can neither pour drive nor Sticking-releasing.at this time,wo need the fishing tools to solve this problem. In the past, we mostly used grinding milling tool to solve it. But grinding milling operation not only spend a very long time but also has a low efficiency .and it is not worthwhile in the economy. the casing fishing of this paper designs that make casing cutting and salvage together. This is a fishing tools which use the principle of hydraulic drive to cut and salvage casing. It can not only cutting and salvage casing smoothly but also solve the shortcomings which exists in grinding milling operations. This paper introduces the working principle of casing fishing tools, structure , the specific design and methods. Key wards: casing cutting, salvage, together 目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc263032333 1 绪 论 PAGEREF _Toc263032333 \h 1 HYPERLINK \l _Toc263032334 1.1 研究的意义和目的 PAGEREF _Toc263032334 \h 1 HYPERLINK \l _Toc263032335 1.2 国内外打捞器研究状况 PAGEREF _Toc263032335 \h 1 HYPERLINK \l _Toc263032336 1.2.1 国内打捞器研究现状 PAGEREF _Toc263032336 \h 1 HYPERLINK \l _Toc263032337 1.2.2 国外打捞器研究状况 PAGEREF _Toc263032337 \h 3 HYPERLINK \l _Toc263032338 1.3 论文设计的方法 PAGEREF _Toc263032338 \h 6 HYPERLINK \l _Toc263032339 1.4 创新点 PAGEREF _Toc263032339 \h 7 HYPERLINK \l _Toc263032340 2 套管切割器的工作原理 PAGEREF _Toc263032340 \h 8 HYPERLINK \l _Toc263032341 2.1 套管切割器的结构原理分析 PAGEREF _Toc263032341 \h 8 HYPERLINK \l _Toc263032342 3 套管切割器的分析计算 PAGEREF _Toc263032342 \h 9 HYPERLINK \l _Toc263032343 3.1 上接头内径中流速的计算 PAGEREF _Toc263032343 \h 9 HYPERLINK \l _Toc263032344 3.2 钻井液经过溢流阀时总