西南石油大学学报(自然科学版) ›› 2008, Vol. 30 ›› Issue (2): 116-118.

• 油气化学工程与化工 • 上一篇    下一篇

丁苯胶乳对固井水泥石性能的影响

熊生春,何 英,徐依吉,等   

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-04-20 发布日期:2008-04-20

〗Influence of Styrene-butadine Emulsion on Cement Slurry Performance

XIONG Sheng-chun et al   

  • Received:1900-01-01 Revised:1900-01-01 Online:2008-04-20 Published:2008-04-20

摘要: 针对油田中后期开发面临的固井水泥环受腐蚀、脆性破裂的问题,采用水泥石抗腐蚀性分析、试件抗压和抗折强度实验,对胶乳改善水泥石的抗腐蚀性和韧性进行了研究,分析了胶乳改善水泥石抗腐蚀性和韧性的机理。结果表明,胶乳水泥石比普通水泥石抗腐蚀能力明显提高;随着水泥石中胶乳加量增加,水泥石的脆性系数逐渐减小,抗折强度逐渐增大,韧性增强。m(胶乳)∶m(水泥)在1∶10~1.5∶10时,水泥石的致密程度最高,渗透率最小。

关键词: 丁苯胶乳, 水泥石, 柔韧性, 抗腐蚀性, 强度

Abstract: Aimed at the problem of cementing quality, cement-mantle corrosion and brittle fracture in the mid-term and later stage of oilfield development, the improvement of corrosive resistance and toughness of cement stone by using emulsion are investigated by means of chemical analysis and compressive resistance and bending strength test on cement samples. The results demonstrate that the emulsion cement stone can obviously be improved than the anticorrosive ability of ordinary cement stone. With the increase of the emulsion content in the cement stone, the fragility coefficient of the cement stone decreases gradually, compressive resistance increases and the tensile toughness of the cement stone is strengthened when m(emulsion)/m(slurry) is 1/1.5∶10, the cement stone is tightest and the permeability is lowest.

Key words: styrene-butadiene emulsion, cement slurry, toughness, corrosive resistance, tensile strength