水泥中(SiO_4)~4-四面体聚合态结构与抗压强度的关系  

The relation between tetrahedral configuration (SiO_4) and compression strength of class G cement

作　　者：王晓钧[1] 陈悦[1] 钟白茜[1] 杨南如[1] 周兴山 林鲜[2] 霍明江[2] 张颖[2] 谭振球 

机构地区：[1]南京化工大学材料系 [2]中国石油天然气总公司工程技术研究院

出　　处：《钻井液与完井液》1997年第2期12-14,共3页Drilling Fluid & Completion Fluid

摘　　要：应用三甲基硅烷化(TMS)技术,对常温(93℃)和高温(160℃)下掺有NaCl的G级油井水泥浆固化过程中水化产物(SiO_4)^(4^-)四面体聚合态结构与抗压强度的关系进行了分析。结果表明,国产G级油井水泥在93℃和160℃下,当其在8h相对左右龄期具有较多的活性单体时,水泥石强度也相应较高,NaCl浓度为15％时,水泥石的8h龄期强度比NaCl浓度为0％和36％时的水泥石同龄期强度大。指出TMS技术,同样可以用活性单体含量的变化,对在其它应用条件下可能导致G级油井水泥性能变化的因素作出一定的解释。The relation between compression strength and tetrahedral configuration (SiO4) formed in the solidification process after adding sodium chloride to cement slurry is analysed in the temperature condition of 93 ℃ and 160℃ by using trimethyl silanization technology (TMS) . Tests indicate that the cement possesses good compression strength while adding sodium chloride for 8 hours. also the compression strength of cement with the concentration of 15% sodium chloride is higher than that of cement with the concentration of 0% and 36% sodium chloride.

关 键 词：油井水泥 掺料水泥 高温水泥 抗压强度 固井 

分 类 号：TE256.6[石油与天然气工程—油气井工程]