新型固井降失水剂HTF-210C的研发及性能评价  

Preparation and Performance of New Fluid Loss Additive HTF-210C for Oil Well Cementing

作　　者：郭锦棠[1] 邹双[1] 喻文娟 刘硕琼 靳建洲 于永金 

机构地区：[1]天津大学化工学院,天津300072 [2]中国石油集团钻井工程技术研究院,北京100089

出　　处：《天津大学学报（自然科学与工程技术版）》2016年第3期261-266,共6页Journal of Tianjin University：Science and Technology

基　　金：国家科技重大专项资助项目(2011ZX05021)

摘　　要：针对当前高温降失水剂与其他外加剂配伍性差,低温条件下易造成水泥石强度发展缓慢,甚至产生超缓凝现象等问题,通过引入一种偏硅酸盐,研制了高温降失水剂HTF-210C.经红外分析表明,偏硅酸盐是以共混的形式存在于降失水剂中;经热重分析表明该降失水剂具有良好的耐热性能,耐热温度可达300,℃;经水泥浆性能评价表明,该降失水剂控滤失性能好,抗盐达饱和,与其他外加剂配伍性好,低温强度发展快,稠化曲线无'鼓包'、'包芯'现象,且重复性好,稳定性高.With regard to the problems of high temperature fluid loss additive, such as exhibiting poor compatibil- ity with other additives and declining the growth of cement strength or even over retarding at low temperature, a new type of high temperature fluid loss additive, called HTF-210C, was developed by introducing metasilicate. The in- frared spectrograms were conducted to verify the coordination of metasilicate with copolymer. The result indicates that metasilicate is not involved in the polymerization reaction. Through TG analysis, the HTF-210C performs high tem- perature resistance and its chemical structure is stable below 300 ℃. The evaluation results show that the HTF-210C has excellent fluid loss control ability, salt tolerant ability, good compatibility with other additives and rapid devel- opment of compressive strength at low temperature. The phenomena of ＂false set＂ or ＂abnormal gel＂ did not appear in the thickening experiments of the cement slurry containing the HTF-210C under high temperature and high pressure. HTF-210C also has high stability and good reproducibility.

关 键 词：降失水剂 固井 偏硅酸盐 水泥浆 配伍性 

分 类 号：TE39[石油与天然气工程—油气田开发工程]