物理钢化对国产漂珠抗压强度的影响研究  

Study on the Influence of Thermal Tempering on the Compressive Strength of Domestic Cenospheres

作　　者：李亚男[1] 蒋争涛 张春梅[1] 童杰[1] 周训武[1] 

机构地区：[1]西南石油大学材料科学与工程学院,成都610500 [2]成都航发特种车有限公司,成都610500

出　　处：《中国陶瓷》2013年第11期55-58,62,共5页China Ceramics

基　　金：四川省高等学校油气田材料重点实验室项目(12YQT024)

摘　　要：为了提高国产漂珠的抗压强度,达到油田固井技术上的要求,采用物理钢化对漂珠进行强化处理,使其表面和内部分别产生压应力和张应力来提高漂珠抗压强度。通过扫描电子显微镜微观形貌观察、X射线衍射结构分析和增压稠化仪抗压强度测试,对比研究强化前后漂珠的表面微观结构特征和力学性能。并对该水泥浆体系的沉降稳定性和抗压强度进行研究,测试对比强化漂珠体系、国产漂珠体系和3 M漂珠水泥浆体系。实验结果表明:530℃,5%的KCl溶液钢化处理后的国产漂珠有新的物相KCl生成,漂珠表面变得十分粗糙,漂珠完好率提高17.03%,水泥石抗压强度提高1.42 MPa。In order to improve the compressive strength of the domestic cenospheres to satisfy the requirements of cementing technology, cenospheres were strengthened by thermal tempering. The purpose of the study is to strengthen cenospheres by producing the compressive stress and tensile stress on the internal and surface of cenosphere by thermal tempering. The micro-morphology, microstructures and the compressive strength of the samples were characterized by SEM,XRD and the booster thickening apparatus. The stability and compressive strength of the slurry system were analysed,and compared it with the two other slurry systems,that is, domestic cenospheres system and 3M cenospheres system. The experimental results show that after cenospheres were treated at 530 ℃ and quenched with potassium chloride solution which the mass fraction of potassium chloride is 5%, new phase potassium chloride appeared on the surface of cenospheres and the surface become very rough. The intact rate improve 17.03% and the compressive strength of the cement is improved by 1.42 Mpa.

关 键 词：漂珠 强化 抗压强度 物理钢化 

分 类 号：TQ174.75[化学工程—陶瓷工业]