延长油田永宁采油厂双河西区回注水腐蚀结垢控制研究
Research on Control Methods of Reinjection Water Induced Corrosion and Scaling for Water Injection System at Shuanghe West District of Yongning Oil Production Plant in Yanchang Oilfield
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- DOI:
- 作者:
- 李国明1, 贠玉平2, 王亚雄2, 安思彤3, 唐组友3
LI Guo-ming1, YUN Yu-ping2, WANG Ya-xiong2
- 作者单位:
- 1.陕西延长石油(集团)有限责任公司研究院 陕西西安 710075;
2.延长油田股份公司研究中心 陕西延安 716000;
3.中原油田采油工程技术研究院 河南濮阳 457001
Research Institute of Shannxi Yanchang Petroleum Co., Ltd.,
- 关键词:
- 回注水;腐蚀;结垢;控制方法
reinjection water;anticorrosion;scaling;control technique
- 摘要:
- 延长油田永宁采油厂双河西区注水系统腐蚀结垢严重，动态条件下的腐蚀速率大于0.254 mm/a。文章通过试验研究了腐蚀结垢的影响因素、影响规律及控制方法，指出导致管道、井筒腐蚀结垢的主要原因是回注水中的溶解氧、细菌以及成垢阴阳离子超标；通过投加pH值调节剂、除氧剂、杀菌剂以及缓蚀阻垢剂，可使回注水对碳钢的腐蚀速率降至0.030 4 mm/a，满足回注要求。
The water injection system at Shuanghe West District has severe corrosion and scaling problems, in which the dynamic corrosion rate induced by reinjection water is greater than 0.254 mm/a. The influence factors, influence rules and control methods of corrosion and scaling are experimentally investigated. The main reason of the well corrosion and scaling is due to superstandard of dissolved oxygen, bacterial and scaling zwitterion. By adding pH regulator, deoxidant, bactericide, corrosion and scaling inhibitor to the reinjection water, the corrosion rate is reduced to 0.030 4 mm/a, that reaches the reinjection standard requirement.2013,6(6): 50-53 收稿日期：2013-5-28DOI：10.3969/j.issn.l001-2206.2013.06.014作者简介：李国明(1967-)，男，河南郑州人，高级工程师，1988年毕业于大庆石油学院油藏工程专业，现从事石油工程管理工作。参考文献：
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