残酸处理剂的研制——油井不外排液的关键技术

残酸处理剂的研制是根据油井酸化后残酸液的性质研究出的具有中和、络合性能的工作液，使用后采出液对泵筒无腐蚀，矿化度达到正常水平，在油水分离器中能正常分离。使油井酸化实现了不动管柱、不排液。大大降低施工成本、缩短施工周期，适应油田油井酸化的需要，适应日益重要的环境保护的需要，该技术目前在大庆油田应用了11口井现场试验，取得了较好的效果。

油井不动管柱酸化技术工艺应用

针对油井施工酸化周期的问题,研究应用了不动管柱酸化工艺,该工艺采用油套环空注入酸液,残酸由抽油泵返排,通过对原生产管柱进行镀膜预处理及施工后期泵入残酸处理剂,利用药剂的中和、络合作用提高残酸的pH值,降低矿化度,有效缓解了残酸对管柱的腐蚀作用,并解决了中和后的残酸由于流体性质的改变。解决了残酸对泵、油管、抽油杆的腐蚀问题及返排液中固体颗粒物对泵筒产生堵塞的问题。

Suitability of Sour Crude Processing and Resid Hydrotreating Technologies

This article has analyzed the environment and tasks confronting China's petroleum refining industry, and has referred to principles for selecting the resid processing technologies and viability of various combination technologies for resid processing. Taking into account the actual commercial practice of resid hydrogenation units, this article has also discussed methods for processing high-sulfur inferior crudes as well as the suitability of resid hydrogenation technology.