Research on Large-diameter Solid Expandable Tubular Subsidy Technology and Suspension Seal Device
| Autor: | Zhao Tao, Lifei Shao, Daqi Fu, Manlinag Huang, Kailin Chen, Zhu Xiaohua, Shi Changshuai, Yuekui Qi |
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| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Journal of Physics: Conference Series. 1676:012027 |
| ISSN: | 1742-6596 1742-6588 |
| DOI: | 10.1088/1742-6596/1676/1/012027 |
| Popis: | In view of the issue that the diameter is small and the suspension force is uncertain after solid expandable tubular (SET) subsidy. The uniaxial tensile test of SA106B metal is carried out, and the parameters of metal elastoplastic constitutive model are fitted accordingly. Then, a solid expandable tubular laboratory test is designed, and a finite element model of SET is established based on this test. Finally, the effects of the expansion cone radius and the thickness of the rubber ring on the expansion stress and contact pressure are researched. The results show that the established finite element model has small errors and reliable results. The optimal expansion cone radius is selected through the maximum stress and the residual stress of expanded tubular to improve the expansion quality of the tube. The thickness of the rubber ring has a great influence on the contact pressure and the suspension force, so it must be reasonably optimized under the premise of ensuring the sealing ability. The optimal solution of the expansion cone radius and the thickness of the rubber ring is given by comparison. This study provides a theoretical basis for the optimization of solid expandable tubular technology. |
| Databáze: | OpenAIRE |
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