关于乳改性水泥石压缩和拉伸性能的研究
Lianzhi Yang1, Jie Zhang1, Jiyun Shen2
1School of Civil and Resource Engineering, University of Science and Technology Beijing, Beijing 100083, China.
Materials (Basel, Switzerland)
|October 16, 2024
概括
这项研究调查了乳改性水泥石 (LMCS) 的机械性能,这对于石油和天然气井的钻井完整性至关重要. 在各种压力下,LMCS表现出增强的强度和耐用性,为井建设提供了有价值的数据.
科学领域:
- 材料科学 材料科学 材料科学
- 地质技术工程 地质技术工程
- 石油工程是石油工程中的一个.
背景情况:
- 井口完整性对于安全高效的钻井操作至关重要.
- 水泥是井井建设中的主要障碍物,需要对其机械性能有深入的了解.
- 乳改性水泥石 (LMCS) 具有有利的抗道,抗腐蚀和机械特性.
研究的目的:
- 综合检查乳改性水泥石 (LMCS) 的机械性能.
- 为了确定材料在单轴和三轴压缩,以及巴西裂变条件下的行为.
- 为了获得LMCS的强度标准,以帮助构成模型和模拟.
主要方法:
- 单轴压缩试验用于确定弹性模量,波桑比率和压力强度.
- 在不同限制压力 (2-10 MPa) 下进行三轴压缩试验,以评估模拟下孔条件下的强度.
- 巴西分裂试验评估拉伸强度.
主要成果:
- 单轴压力强度在15.82到22.21 MPa之间;弹性模量在4.08到8.29 GPa之间;波桑比率在0.05到0.46.
- 三轴测试显示,压力强度随着限制压力 (27.38到39.58MPa) 的增加而增加,增幅的速度下降.
- 拉力强度在2.34到3.72MPa之间;莫尔 - 库伦和德鲁克 - 普拉格参数成功得出.
结论:
- LMCS表现出良好的机械性能,包括在封闭状态下增强的压力强度,使其适合钻井应用.
- 衍生的强度标准为开发构成模型和模拟石油和天然气井中的LMCS行为提供了必要的数据.
- 这些发现为优化水泥石的选择和在石油和天然气井建设中的应用提供了宝贵的指导.
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