【摘要】：為了滿(mǎn)足高溫高壓井酸化施工的需求,以3-甲基吡啶,氯化芐為主要原料,合成了一種吡啶類(lèi)季銨鹽。在吡啶類(lèi)季銨鹽中復(fù)配一定比例的增效劑和表面活性劑,制備出一種新型高溫酸化緩蝕劑HTCI-2,并對(duì)其基本性能進(jìn)行評(píng)價(jià)。由評(píng)價(jià)結(jié)果可知,在180℃、16 MPa,20%HCl或者土酸,4.5%加量條件下,N80試片的腐蝕速率為38.1 g/(m2·h)和39.6 g/(m2·h)。通過(guò)SEM電鏡掃描、EDS能譜測(cè)試和極化曲線(xiàn)測(cè)試可以看出,HTCI-2為一種以抑制陽(yáng)極反應(yīng)過(guò)程為主的混合型緩蝕劑。HTCI-2能在N80鋼片表面形成一層致密的保護(hù)膜,有效地阻止酸液和鋼鐵表面的接觸。HTCI-2不含有毒的炔類(lèi)化合物,與常用的酸化添加劑配伍性良好。在濱深油田濱深22-8井進(jìn)行了現(xiàn)場(chǎng)試驗(yàn),工程施工順利。
[Abstract]:A pyridine quaternary ammonium salt was synthesized from 3-methylpyridine and benzyl chloride in order to meet the requirements of acidizing operation in high-temperature and high-pressure wells. A new high temperature acidizing inhibitor HTCI-2 was prepared by adding a certain proportion of synergist and surfactant in pyridine quaternary ammonium salt and its basic properties were evaluated. The results show that the corrosion rate of N80 specimen is 38.1 g / (m ~ 2 h) and 39.6 g / (m ~ 2 h).) at 180 鈩，

本文編號(hào)：2142098