| 油井采出液对封隔器丁腈橡胶密封件性能的影响 |
| Effect of Oil-well Produced Water on Properties of NBR Packer Element |
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| DOI： |
| 中文关键词: 油井采出液 丁腈橡胶 封隔器 耐老化性能 |
| 英文关键词: oil-well produced water NBR packer aging property |
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| 中文摘要: |
| 以油井采出液为试验介质研究油井采出液对封隔器丁腈橡胶（NBR）密封件性能的影响。结果表明：在模拟井况下，封隔器NBR密封件出现老化现象，随着浸泡时间的延长，密封件的邵尔A型硬度逐渐增大，拉伸强度和拉断伸长率逐渐下降，老化机理以分子链交联老化反应为主；随着温度的升高，老化速率快速增大；高含水率的油井采岀液对NBR密封件的性能存在负面影响。 |
| 英文摘要: |
| The effect of oil-well produced water on the properties of NBR packer element was investigated using oil-well produced water as test medium.The results showed that，the properties of NBR packer element changed with aging under the simulated well condition.With increase of soak time，the Shore A hardness of the packer element gradually increased，and the tensile strength and elongation at break gradually decreased.The main aging mechanism was cross-linking reaction.As the temperature increased，the aging rate increased rapidly.The oil-well produced water from high water cut wells had negative impact on the properties of NBR packer element. |
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