论文部分内容阅读
大庆原油是高含蜡原油,结蜡问题给采油和运送都带来困难。研发了一种减黏型防蜡、清蜡剂,该剂可防止黏稠度高的原油在采油管上结蜡,并兼有清蜡、减黏作用。可代替过去常采用的机械清蜡、加热清蜡或油管内衬和涂层等方法。由于添加了适量防冷添加剂,使本防蜡剂可在冬季低温下使用和存放。试验结果表明,该剂的防蜡率≥65%,降黏率30%~35%。可在-35℃低温下使用和存放,现场加剂量为2.0%~2.5%。清蜡周期可达3个月以上,并且具有流动性好,加药工艺简单,成本低,清、防蜡效果显著的特点。
Daqing crude oil is a high-wax crude oil, waxing problems to both oil and transportation are difficult. Developed a viscosity-reducing wax, waxing agent, the agent to prevent the viscosity of crude oil in the oil pipe waxing, and both de-waxing, viscosity reduction. It can replace the mechanical waxing, heat waxing or tubing lining and coating used in the past. Due to adding an appropriate amount of anti-cold additives, so that the anti-wax agent can be used and stored at low temperatures in winter. The test results show that the anti-wax rate of the agent ≥ 65%, viscosity reduction rate of 30% to 35%. Can be used at -35 ℃ low temperature and storage, on-site dosage of 2.0% to 2.5%. Clear wax cycle up to 3 months, and has good liquidity, dosing process is simple, low cost, clear, anti-wax effect of significant features.