生物基临时插头材料的制备和表征:自愈和可降解
Jia Li1, Ming Wen2, Shuang Liu1
1Research Institute of Natural Gas Technology, PetroChina Southwest Oil & Gas Field Company, Chengdu, Sichuan 610213, People's Republic of China.
ACS omega
|October 9, 2023
概括
为高温气体井开发了一种新的基于生物的临时密封材料. 这种素衍生的玻璃体表现出优异的热稳定性,自我愈合,在压力下具有卓越的堵塞能力.
科学领域:
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
- 石油工程是石油工程中的一个.
背景情况:
- 由于密封材料的限制,高温气体井操作面临着低成功率的挑战.
- 现有的临时密封材料往往缺乏在极端条件下所需的热稳定性和性能.
研究的目的:
- 为了合成和表征一种新的基于生物的临时密封材料,用于高温气井应用.
- 评估开发材料的热稳定性,自我愈合性,机械性能和降解行为.
主要方法:
- 使用纤维素和乙烯基酸水合物 (AZH) 合成一种素衍生的环氧玻璃化物.
- 使用红外分析,热力学性质测试,动态机械分析和机械性质测试进行表征.
- 在模拟下孔条件下对降解性能和堵塞能力的评估.
主要成果:
- 成功合成了素衍生的环氧玻璃剂,具有基链接.
- 通过高玻璃过渡温度 (Tg) 证明了出色的热稳定性.
- 在120°C的20分钟内达到61%的自我愈合率,具有良好的弹性变形 (反弹>36%) 和低压缩率 (<17%) 在10MPa以下.
- 在120°C下呈现80%的分解和1.2%的NaOH,表明可控降解性.
- 与凝,复合材料和形状记忆聚合物材料相比,它展示了优越的堵塞性能,在10MPa时最大断裂堵塞能力为5x4mm.
结论:
- 这种新的基于生物的临时密封材料为高温气体钻井和重工作业提供了一个有前途的解决方案.
- 它的优异的热稳定性,自我修复能力,机械强度和有效的插电性能满足了关键的行业需求.
- 该材料的兼容性和性能优于现有的选择,突出了其提高运营成功率的潜力.
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