摘要
采油三厂原油是高含蜡原油,结蜡问题给采油和运送带来困难。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。可代替原PR-PI-C3型液体防蜡剂防蜡率低(≤40%)、溶蜡速率低(g/70min)、凝固点高(-4℃),冬季加药困难,油井防蜡效果差,热洗周期短。自2003年9月起,针对盘古梁油田结蜡严重、热洗频繁的盘58-27和盘59-25两个井组10口井应用YS-3清防蜡剂,试验结果表明,该剂的防蜡率≥40%。可在-20℃低温下使用和存放,现场加剂量100～120 mg/L。防蜡周期可达9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。
The crude oil in the 3rd oil production factory is high percentage of wax. The crude oil is difficult for recovery and transportation because of the wax deposition. A viscosity reduction style wax inhibition which can prevent the wax deposition along the oil pipe is prepared with extra functions of wax removing and viscosity reduction. The wax inhibition can be used instead of the paraffin inhibitor of PR-PI-C3. Since Sep 2003, YS-3 has been used successfully in 10 production wells of group P58-27 and P58-29 with serious waxing troubles, the test shows that the YS-3 gives a high wax inhibition rate of 40 %. It can be used and stored at the temperature of -20 ~C. The proper dosage of this agent is 100-120 mg/L . The period of its wax removal is nine months, and it has many advantages, such as good fluidity, simple technique, low cost and effective wax inhibition and removal.
出处
《石油化工应用》
CAS
2009年第5期20-22,共3页
Petrochemical Industry Application
关键词
YS-3清防蜡剂
研制
现场试验
采油井
paraffin inhibitor of YS-3
development
filed test
production well
