井下封隔器的密封状况检查在油田注水开发过程中是一项非常重要的工作。
It is an important work to check the sealing condition of the packer in oilfield water-flooding development.
库1井直井段在完井测试期间，2次测试井下封隔器均被埋死，造成非常严重的井下事故。
During the completion well testing period of the vertical well section of Ku 1, we tested 2 times and the downhole packer was all imbedded, result in very serious downhole accident.
进行的多次高温封隔器试验为研制高温高压特殊封隔器和油田井下工具的检测提供了可靠的依据。
Times of high temperature test for packing was made and the reliable test base have been obtained for down-hole tool test under high temperature and pressure well.
胶筒下部钢套采用滑套式，在降低胶筒扩张压力的同时，使封隔器在井下受力更合理。
Sliding steel sleeve at the lower end of rubber barrel is used to make reasonable force arrangement for downhole packer meanwhile the expandable pressure of rubber barrel is decreased.
封隔器胶筒的密封性能直接制约其使用性能，且胶筒属于超弹性材料，在井下多种载荷作用下，其力学行为复杂。
Sealing property of rubber directly restrict its usability. Rubber is a type of super elastic material. Its mechanics behavior is complication under multi-strain in down hole.
许多卡钻事故是由于封隔器及其他锚瓦类井下工具的使用造成的，Y 211型封隔器的卡钻问题最为突出，且多发生在定向井中。
The sticking of the downhole string happened occasionally because great quantity of packers and other tools with slips are used. The sticking of Y211 packer is frequent in directional well.
因此，计算自由移动封隔器管柱的变形量是整个管柱受力分析的重要组成部分，也是保证井下作业成败的关键因素。
Therefore, the calculation on the amount of deformation is not only an important work in force analysis of packer string, but also an important factor to ensure the downhole operation.
完成了井下防喷器的内封隔总成部分的设计，并对易损件进行了强度分析及校核。
Complete the design of the inner pack assembly of the down-hole blowout preventer. Accomplish the strength analysis and check of the easily worn parts.
完成了井下防喷器的内封隔总成部分的设计，并对易损件进行了强度分析及校核。
Complete the design of the inner pack assembly of the down-hole blowout preventer. Accomplish the strength analysis and check of the easily worn parts.
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