中国石油网消息：6月22日，玉门油田宁庆气田防腐技术攻关传来捷报。由采油工艺研究院联合环庆采油厂开展的气井防腐技术研究试验取得关键性成果，成功突破高温、高压、高二氧化碳含量的“三高”深层气田防腐技术瓶颈。

China Oil News: On June 22nd, good news regarding the research on anti-corrosion technology for the Ningqing gas field of Yumen Oilfield was announced. The research and experimentation on gas well anti-corrosion technology jointly conducted by the Oil Production Technology Research Institute and the Huanqing Oil Production Plant achieved a crucial result, successfully breaking through the technical bottleneck of anti-corrosion for "three-high" deep gas fields with high temperature, high pressure and high carbon dioxide content.

宁庆气田属于深层复杂气田，平均埋深超过4000米，井底温度在130摄氏度以上，工况条件极端复杂，气井腐蚀问题严重，是影响气田高效开发的关键痛点。玉门油田采油工艺研究院与环庆采油厂联合组建技术团队，创新构建“材料革新+工艺升级+精准管控”三位一体技术体系，坚持基础研究与生产实际相结合，系统性攻关防腐难题。

The Ningqing gas field is a deep and complex gas field, with an average burial depth exceeding 4,000 meters. The bottom temperature of the wells is above 130 degrees Celsius. The working conditions are extremely complex, and the corrosion problem of gas wells is severe, which is a key pain point affecting the efficient development of the gas field. The Oil Production Technology Research Institute of Yumen Oilfield and the Jingqing Oil Production Plant jointly established a technical team, innovatively constructed a three-in-one technical system of "material innovation + process upgrading + precise control", adhered to the combination of basic research and production practice, and systematically tackled the problem of anti-corrosion.

在材料革新方面，团队坚持化学、物理防腐并重，自主研发新型耐高温缓蚀剂、适配深层高温井下环境的镍钨镀层防腐材质，搭建“井筒—地面管线”双重防腐架构，全方位抑制设备腐蚀问题。

In terms of material innovation, the team adheres to a dual approach of chemical and physical corrosion prevention, independently developing new high-temperature resistant corrosion inhibitors and nickel-tungsten plated corrosion-resistant materials suitable for deep high-temperature underground environments. They have also established a "wellbore-ground pipeline" dual corrosion prevention framework to comprehensively prevent equipment corrosion issues.

在工艺升级方面，团队对全区气井进行腐蚀分级，“一井一策”精准设计防腐加药制度，创新性引入自动加药装置，实现缓蚀剂全天候连续、均匀加注。

In terms of process upgrading, the team conducted corrosion grading for all gas wells in the area, and precisely designed the anti-corrosion dosing system based on "one well, one strategy". They innovatively introduced an automatic dosing device to achieve continuous and uniform addition of corrosion inhibitors throughout the day.

在精准管控方面，团队建立缓蚀剂残余浓度常态化监测机制，加强气井动态分析，实时调整防腐工艺参数。

In terms of precise control, the team has established a regular monitoring mechanism for the residual concentration of corrosion inhibitors, strengthened the dynamic analysis of gas wells, and adjusted the anti-corrosion process parameters in real time.

截至目前，该防腐技术已在宁庆气田全面推广应用，累计完成缓蚀剂预膜作业80井次、井筒防腐作业95井次。前期投入应用的13口先导试验井防腐效果突出，监测结果显示腐蚀速率降低70%以上，为同类深层气田腐蚀防治提供了可复制、可推广的“玉门方案”。

As of now, this anti-corrosion technology has been fully applied and promoted in the Ningqing gas field. A total of 80 pre-film operations for corrosion inhibitors and 95 well-bore anti-corrosion operations have been completed. The 13 pilot test wells that were initially applied showed outstanding anti-corrosion effects. The monitoring results indicated that the corrosion rate decreased by more than 70%, providing a replicable and scalable "Yumen solution" for corrosion prevention in similar deep gas fields.