摘要
利用工业废渣磷石膏替代天然石膏作油井水泥的缓凝剂,研究不同熟料细度及掺量对G级高抗油井水泥强度及抗硫酸盐侵蚀等性能的影响。结果表明,随着油井水泥熟料细度的增加水泥石强度逐渐增加,细度达到400 m2/kg,水泥石强度达最高;随着磷石膏掺量的增加,水泥石强度呈现缓慢上升趋势;磷石膏替代天然石膏对水泥石强度影响不大;磷石膏替代天然石膏对高抗油井水泥的抗硫酸盐侵蚀性能未造成不良影响。
Industrial scrap phosphogypsum instead of natural gypsum was used as cement retarding agent. The influences of the content of phosphogypsum and the clinker fineness on the properties of the oil-well cement including compressive strength and sulphate resistance have been studied in this paper. The results show that the compressive strength of cement block increases with the clinker fineness of the oil-well cement and falls down when the fineness is above 400 m2/kg The compressive strength of cement block increases slowly with the content of phosphogypsum. Phosphogypsum instead of natural gypsum has little affection upon the compressive strength and the anti-erosion properties of oil-well cement.
出处
《中国资源综合利用》
2012年第3期26-29,共4页
China Resources Comprehensive Utilization
基金
西南科技大学青年基金项目(08zx3104)
先进建筑材料四川省重点实验室培育项目(08zxxp12)资助
关键词
油井水泥
磷石膏
强度
硫酸盐侵蚀
oil-well cement
phosphogypsum
strength
sulfate corrosion
