利用废弃粉煤灰制备压裂液用硼交联剂的研究
发布时间：2018-09-06 10:11
【摘要】：利用废弃粉煤灰制备聚硅酸,以聚硅酸、硼砂为原料,合成了一种高温延缓型交联剂。采用单因素法,通过测定硼交联剂性能,优选出最佳合成工艺参数为:硼砂5wt%,配体28.5wt%,反应温度80℃,催化剂1.5wt%。并对合成目标产物进行了红外光谱表征,其交联的HPG(羟丙基胍胶)冻胶压裂液的高温流变性评价表明,当胍胶浓度为0.45wt%,交联比为100∶0.8(体积比)时,110℃,170 s-1的剪切速率条件下,剪切2 h,粘度达到130 MPa·s以上,证明该交联剂对HPG具有较好的交联效果,老化破胶实验表明其交联的压裂冻胶易破胶返排,残渣低。
[Abstract]:Polysilicic acid was prepared from waste fly ash. A high temperature retarded crosslinking agent was synthesized from polysilicic acid and borax. By measuring the properties of boron crosslinker by single factor method, the optimum synthesis parameters were obtained as follows: borax for 5 wts, ligand for 28.5 wts, reaction temperature 80 鈩，
本文编号：2226025
[Abstract]:Polysilicic acid was prepared from waste fly ash. A high temperature retarded crosslinking agent was synthesized from polysilicic acid and borax. By measuring the properties of boron crosslinker by single factor method, the optimum synthesis parameters were obtained as follows: borax for 5 wts, ligand for 28.5 wts, reaction temperature 80 鈩，
本文编号：2226025
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