针对乐安稠油油藏高轮次吞吐末期超细水泥封堵技术中存在的封堵有效期短的问题,通过配方改进,自行研发了适于热采井封堵的耐高温水泥堵剂,并对堵剂的性能、施工方式及适用范围进行了相关评价。目前已经成功应用于稠油热采井打塞、炮眼封堵、管外窜及套管漏失封堵等,封堵有效期由1个延长到3个以上,推广应用价值较高。 In order to solve the problem of short plugging effective period in ultra-fine cement plugging technology at the end of high throughput of Luan heavy oil reservoir, the high temperature resistant cement plugging agent suitable for thermal well plugging was developed by formula modification The performance of plugging agent, construction methods and the scope of the relevant evaluation. At present, it has been successfully applied to heavy oil thermal recovery wells plugging, hole blocking, tube channeling and casing leakage blocking, plugging valid from 1 to 3, the promotion of high value.