油气田环境保护2025，Vol.35Issue(2)：35-43,9.DOI:10.3969/j.issn.1005-3158.2025.02.007
油田采出液余热利用过程腐蚀结垢评价及控制方法
Corrosion and Scaling Evaluation and Control Methods in the Utilization of Produced Water Waste Heat in Oilfields
陈丽丽 1路遥军 1吴一凡 2刘桂英 1张光宇 3陈晓莎 1亢清波 1马宁 1刘若兮 1郑丽坤 1尤小虎 1赵乾坤1
作者信息
- 1. 中国石油华北油田分公司
- 2. 中国石油工程建设有限公司华北分公司
- 3. 中国石油工程建设有限公司北京设计分公司
- 折叠
摘要
Abstract
With the advancement of zero-fossil oil production plant construction,the North China Oilfield has fully utilized the waste heat resources of medium and high-temperature produced water for clean alternatives in station heating furnace systems.Due to issues such as significant temperature differences in heat exchange,poor water quality of the produced water,and severe corrosion and scaling in the production system,which lead to project shutdowns and high maintenance costs in the later stages of operation,the North China Oilfield implemented a comprehensive corrosion and scaling control method,mainly based on chemical treatment and supplemented with physical treatment,in a high salinity produced water waste heat utilization project at the S transfer oil station.This method enabled smooth operation of the project.To address the key issue of corrosion and scaling in the high-temperature utilization range of produced water in this area,effective corrosion inhibitors and scale inhibitors resistant to temperatures above 110℃were successfully selected from a source-control perspective to improve water quality.The inhibitors achieved a scale inhibition rate greater than 95％.In process management,heat exchange processes were optimized,and a"single extraction and single injection"approach was adopted to physically isolate medium-and high-temperature produced water from the station's production system.Additionally,an innovative backwashing and chemical cleaning process for key equipment such as heat exchangers was developed to reduce equipment pressure differences.The use of titanium material equipment,alloy valves,and nano-ceramic lining technology for pipelines enhanced the overall corrosion resistance and acid-washing performance of the project.After the project was put into operation,it demonstrated stable and reliable performance,achieving online cleaning of heat exchange equipment.Additionally,the annual frequency of pipeline and equipment cleaning was reduced by more than 30 times,resulting in direct economic benefits of 5.75 million CNY.This method is replicable and scalable for the utilization of produced fluid waste heat in oilfield stations and geothermal heating projects.关键词
采出液/余热利用/防腐阻垢/评价/控制Key words
produced water/waste heat utilization/corrosion and scaling prevention/evaluation/control分类
石油、天然气工程引用本文复制引用
陈丽丽,路遥军,吴一凡,刘桂英,张光宇,陈晓莎,亢清波,马宁,刘若兮,郑丽坤,尤小虎,赵乾坤..油田采出液余热利用过程腐蚀结垢评价及控制方法[J].油气田环境保护,2025,35(2):35-43,9.
