一種新型高溫酸化緩蝕劑的制備及其應用
發(fā)布時間：2018-07-24 17:22
【摘要】：為了滿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,合成了一種吡啶類季銨鹽。在吡啶類季銨鹽中復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,并對其基本性能進行評價。由評價結果可知,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SEM電鏡掃描、EDS能譜測試和極化曲線測試可以看出,HTCI-2為一種以抑制陽極反應過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井進行了現(xiàn)場試驗,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：2142098
[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：2142098
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