本文選題：高溫胍膠 + 有機(jī)硼鋯交聯(lián)劑��； 參考：《石油與天然氣化工》2017年02期

【摘要】：目前所用的胍膠交聯(lián)劑在耐溫抗剪切性能上較以前有了一定程度提高,但仍不能滿足深井、超深井的開采工藝需求。研究以四硼酸鈉和氧氯化鋯為主要原料,甘露醇和甘露醇/檸檬酸/乳酸混合分別作為配位體,通過合成工藝條件考察,研發(fā)出一種與胍膠稠化劑配伍良好的具超高耐溫性能的有機(jī)硼鋯交聯(lián)劑。采用紅外光譜與核磁氫譜對(duì)交聯(lián)劑進(jìn)行結(jié)構(gòu)表征,表明所制交聯(lián)劑中存在鋯與配體酸上羧基的絡(luò)合鍵和硼與有機(jī)物的絡(luò)合鍵。同時(shí)通過實(shí)驗(yàn)測定得到壓裂液配方:0.35%(w)超級(jí)胍膠+2%(w)硫代硫酸鈉+0.6%(w)NaOH+0.02%(w)過硫酸銨+0.6%(w)CF-5A助排劑+0.4%(w)有機(jī)硼鋯交聯(lián)劑,在170s~(-1)、180℃下剪切2h,能保持黏度在100 mPa·s左右,該體系耐溫性能優(yōu)異。破膠劑用量0.02%(w)時(shí),7h完全破膠,破膠液黏度低,殘?jiān)可?表面張力小,破膠性能良好。
[Abstract]:The guanidine crosslinking agent used at present has a certain degree of improvement in temperature and shear resistance, but it still can not meet the production process requirements of deep and ultra-deep wells. Sodium tetraborate and zirconium oxychloride were used as main raw materials, and mannitol and mannitol / citric acid / lactic acid were used as ligands respectively. An organic boron zirconium crosslinking agent with super high temperature resistance was developed, which was compatible with guanidine gel thickener. The structure of the crosslinking agent was characterized by IR and NMR spectra. It was shown that there were complex bonds between zirconium and carboxyl group on ligand acid and complex bond between boron and organic compounds. At the same time, the formula of fracturing fluid was determined by experiments. The formula of fracturing fluid was: 0.35w) Super guanidine gum (2w) sodium thiosulfate (0.6%(w)NaOH 0.02w) ammonium persulfate (0.6%(w)CF-5A) (0.4g / w) organic boron zirconium crosslinking agent. The crosslinking agent was shearing at 170 s-1 鈩，

本文編號(hào)：1841419