石油钻采工艺2016，Vol.38Issue(1)：42-47,6.DOI:10.13639/j.odpt.2016.01.009
玄武岩纤维对铝酸盐水泥石性能的影响
Effects of basalt ifber on the performance of aluminate cement stone
摘要
Abstract
In order to further improve the performance of aluminate cement stone used for cementing in heavy oil thermal recovery wells, this paper studies the effects of basalt ifber on the performance of cement stone. Through the measurement of cement slurry engineering performance, mechanical properties and permeability of cement stone, and combined with scanning electron microscope (SEM) to analyze the microstructure, this paper explores the functional mechanism of basalt ifber reinforced aluminate cement stone. The results show that, after adding appropriate amount of basalt ifber into aluminate cement and at low temperature and normal pressure environment, the engineering performance of the cement slurry does not change much, the mechanical properties of the ifber modiifed cement stone are signiifcantly improved and have obvious toughness. Under high temperature and high pressure, strength and permeability of ifber modiifed cement stones remain stable, and the ifber cement stone has good high temperature resistance. By observing the microstructure of cement stone and analyzing the functional mechanism of ifber, it is found that basalt ifber maintains stable in aluminate cement stone, the microscopic pore structure of cement stone has been improved, the emergence and development ofmicro-cracks is under control, the ifber and cement hydration products are bonded tightly, which resists cracking. Fiber breaking away from bonding and being pulled out increases the cement fracture energy, hence improving the performance of aluminate cement stone used in cementing by basalt ifber as a toughening material.关键词
固井/铝酸盐水泥/玄武岩纤维/力学性能/微观形貌/稠油热采Key words
cementing/basalt ifber/aluminate cement stone/mechanical properties/microstructure/heavy oil thermal recovery分类
能源科技引用本文复制引用
程小伟,张明亮,杨永胜,龙丹,李早元,郭小阳..玄武岩纤维对铝酸盐水泥石性能的影响[J].石油钻采工艺,2016,38(1):42-47,6.基金项目
高等学校博士学科点专项科研基金“硅酸盐-磷铝酸盐水泥水化产物与其在高酸性环境下的腐蚀行为研究”（编号20115121120006）；四川省教育厅科技项目“等离子改性废旧橡胶增强油井水泥石韧性机理研究”（编号13ZA0182）；西南石油大学油气田材料重点实验室开放基金（编号x151514kcl10）。 （）
