明矾石油井膨胀水泥在水热条件下水化硬化的研究

Study on Hydration and Hardening of Alumite Oilwell Expansive Cement under Hydrothermal Conditions

本文研究了以明矾石、硬石膏为膨胀组份的油井膨胀水泥,在室温及30℃、50℃、75℃和95℃常压水热条件下的水化产物和水泥石的显微结构及其孔径分布.讨论了水热温度对明矾石油井膨胀水泥的线膨胀及其抗压强度的影响.

Hydrates of oilwell expansive cement using alumite and anhydrite as expansive components under atmospheric pressure and ambient temperatures of 30℃ , 50℃ , 75℃ , and 95℃, as well as the microstructure and pore size distribution of hardeed cement paste were stu-died. The effects of hydrothermal temperature upon linear expansion and compressive strength of alumite oilwell expansive cement were also discussed.