本文選題：封隔器膠筒 + 完全防突　； 參考：《工程設(shè)計學(xué)報》2017年03期

【摘要】：為了防止封隔器膠筒在大間隙和高壓差工況下肩部突出,提高封隔器的封隔能力,針對傳統(tǒng)防突裝置的不足設(shè)計了一種傘式完全防突裝置。首先,使用有限元軟件對無防突裝置、安裝部分防突裝置和使用完全防突裝置的膠筒在封隔大間隙工況下的密封性能進行了對比分析,發(fā)現(xiàn)使用完全防突裝置時膠筒的最大Von Mises應(yīng)力最小、封隔能力最強。其次,介紹了傘式防突裝置的結(jié)構(gòu)和工作原理,對其機構(gòu)進行了分析。同時設(shè)計了一款適用于Y111-150型封隔器膠筒的傘式防突裝置,驗證了機構(gòu)不會發(fā)生自鎖,各零部件之間也無干涉發(fā)生。當防突裝置翼板展開防突時,連桿兩端處的銷釘受力最大,此處易發(fā)生失效;當防突裝置用于大間隙、高壓差封隔時可適當增加這2處銷釘?shù)闹睆胶瓦B桿的厚度。研究結(jié)果對封隔器防突裝置的設(shè)計具有一定參考意義。
[Abstract]:In order to prevent the Packer cylinder from protruding under the condition of large gap and high pressure difference, and to improve the sealing ability of Packer, an umbrella type complete outburst prevention device was designed in view of the deficiency of traditional anti-outburst device.Firstly, the sealing performance of the rubber cylinder with no outburst prevention device, partial anti-outburst device and complete anti-outburst device under the condition of large clearance sealing is compared and analyzed by using finite element software.It is found that the maximum Von Mises stress is the smallest and the sealing ability is the strongest.Secondly, the structure and working principle of umbrella-type anti-outburst device are introduced, and its mechanism is analyzed.At the same time, an umbrella anti-outburst device suitable for Y111-150 Packer cylinder is designed, which verifies that the mechanism will not occur self-locking and there is no interference between parts and components.When the flange of the anti-outburst device is extended, the pin force at the two ends of the connecting rod is the largest, and the failure is easy to occur here, and when the anti-outburst device is used in the large gap, the diameter of the pin and the thickness of the connecting rod can be appropriately increased when the high-pressure differential seal is used.The research results have some reference significance for the design of Packer outburst prevention device.
【作者單位】： 西南石油大學(xué)機電工程學(xué)院;西南石油大學(xué)石油天然氣裝備教育部重點實驗室;中國石油集團川慶鉆探工程有限公司井下作業(yè)公司;
【基金】：國家自然科學(xué)基金面上項目(51274171) 教育部重點實驗室項目(OGE201403-03) 四川省科技計劃項目(2015JY0078,2015SZ0010-06) 四川省教育廳科研項目(14ZA0042)
【分類號】：TE931.2
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本文編號：1755536