铝酸盐水泥固井材料在稠油热采环境下的性能  

Application of a New Type of Cement for the Long-term Wellbore Integrity in a Thermal Recovery Well

作　　者：武治强 李强 岳家平 李早元[2] 郭小阳[2] WU Zhiqiang;LI Qiang;YUE Jiaping;LI Zaoyuan;GUO Xiaoyang(Research Institute of China National Offshore Oilfield Corporation,Beijing 100028,China;Southwest Petroleum University,Chengdu 610500,China)

机构地区：[1]中海油研究总院有限责任公司,北京100028 [2]西南石油大学,成都610500

出　　处：《重庆科技学院学报（自然科学版）》2018年第5期49-51,共3页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：国家重大科技专项"渤海湾盆地辽河坳陷中深层稠油开发技术示范工程(二期)"(2011ZX05053)

摘　　要：稠油热采井的固井水泥材料需经受300℃以上高温。模拟高温蒸汽吞吐热采作业环境,实验检测铝酸盐水泥材料的耐高温性能,包括高温养护前后水泥石的抗压强度、渗透率、孔隙度、孔径分布、矿物组分和微观形貌的变化情况。结果表明:在热采条件下,铝酸盐水泥石的力学性能变化较小,微观结构致密,高温稳定性和完整性良好。During the development of offshore heavy oil wells, the cementing materials must withstand high tempera-tures above 300 degrees. The conventional Portland cement materials have poor resistance to high temperature, and integrity cannot be effectively guaranteed, which will affect the productivity of heavy oil wells. By simulating steam huff and puff conditions, the new type of alunfinate cement material was evaluated at 315 degrees high temperature to test its integrity. The compressive strength, permeability, porosity, pore size distribution, mineral composition and microstructure of cement paste before and after high temperature were tested. The results show that the mechanical properties of the cement stone have little change, and the microstructure is compact. So the stability and integ-rity under the high temperature are good under the condition of thermal recovery.

关 键 词：热力采油 固井材料 铝酸盐水泥 耐高温性能 矿物组分 微观结构 

分 类 号：TE256.6[石油与天然气工程—油气井工程]