超高温缓凝剂DZH3的性能研究  

Lab Research on DZH-3:an Ultra-High-Temperature Retarder

作　　者：汪晓静[1] 桑来玉[1] 周仕明[1] 杨广国[1] 

机构地区：[1]中国石化石油勘探开发研究院德州石油钻井研究所,山东德州253005

出　　处：《石油钻探技术》2009年第3期22-25,共4页Petroleum Drilling Techniques

基　　金：国家高技术研究发展计划("863"计划)项目"超深井高温高压复杂条件下固井技术研究"(编号:2006AA06A109-6)部分研究成果

摘　　要：针对目前国内超深井对固井缓凝剂的需求,研制了高温缓凝剂A、B,然后将A、B以一定比例复配得到抗200℃的超高温缓凝剂DZH-3。评价了超高温缓凝剂DZH-3在150～220℃不同温度下及不同加量下的抗高温性能、高温稳定性能、高温抗压性能和综合性能等。结果表明:超高温缓凝剂DZH-3在不同加量下,水泥浆体系的稠化时间具有线性可调性且无超缓凝现象;加有DZH-3的配浆水在陈化14d后,浆体的稠化时间及稠化曲线仍具有重现性;浆体在高温下24h强度发展迅速,具有较高强度,无高温高压强度衰退现象;综合性能能满足固井现场的施工需求。In order to meet the demands of cementing retarders on ultra-deep wells, the retarders A and B were developed. Mixing A and B in certain ratio, an ultra-high-temperature retarder, DZH-3 is formed. Its anti-thermal stability, compressive properties and comprehensive performances under various temperatures ranging from 150 to 220℃ with different DZH-3 content were tested. The results indicate that the thickening time can be adjusted linearly according to different addition of DZH-3 without over-retardance, after the serofluid containing DZH-3 aging 14 days, the thickening time and curve can repeat regularly, the slurry can quickly get high compressive strength in 24 hours without recession, also the integrated engineering performances can satisfy the requirements of cementing fields.

关 键 词：油井水泥 固井 高温 缓凝剂 抗压强度 

分 类 号：TE256.6[石油与天然气工程—油气井工程]