中国石油网消息:近日，南方油田年初部署在朝阳CCUS调整区块的首口注气井——朝6-405X井顺利完井。该井克服CCUS注气区块地层压力影响、老井场重复利用、防碰绕障、空间受限等多重难题，实现二开一趟钻安全高效完井，为油田CCUS开发规模化推进、提质增效与绿色高质量发展奠定了坚实基础。

China Oil News: Recently, the first injection well deployed by the Southern Oilfield in the adjustment block of Chaoyang CCUS area - Chaoyang 6-405X well - was successfully completed. This well overcame multiple challenges such as the influence of formation pressure in the CCUS injection block, reuse of the old well site, prevention of collisions and obstructions, and limited space, and achieved safe and efficient completion in just one drilling run. This has laid a solid foundation for the large-scale advancement, efficiency improvement, and green high-quality development of the CCUS project in the oilfield.

工程技术部统筹钻井、地质、采油、新能源等多专业技术力量，分析邻井资料、预测地层压力与风险，制定“一井一策”施工方案，同步优化周边注气井停注管控措施。施工过程严格执行精细化闭环管理，落实“双监督”驻井升级机制，强化随钻动态监测，密切关注综合录井气测异常，精准把控钻井参数，优化钻头选型与钻井液体系，有效化解地层压力波动、井壁稳定性等风险，顺利实现二开一趟钻高效完钻，大幅压缩钻井周期。

The Engineering Technology Department integrates multiple professional technical forces including drilling, geology, oil production, and new energy. It analyzes data from adjacent wells, predicts formation pressure and risks, formulates "one-well-one-plan" construction plans, and simultaneously optimizes the shutdown and control measures for surrounding injection wells. During the construction process, strict and refined closed-loop management is implemented, the "dual supervision" on-site upgrade mechanism is adopted, dynamic monitoring during drilling is strengthened, and comprehensive logging gas measurement anomalies are closely monitored. Precise control of drilling parameters is achieved, the drill bit selection and drilling fluid system are optimized, and risks such as formation pressure fluctuations and wellbore stability are effectively mitigated. The second well is successfully completed in one trip with drilling, significantly reducing the drilling cycle.

同时，严格遵循CCUS井固井技术标准，优选防腐蚀、高强度三凝水泥浆体系，优化注水泥、顶替、候凝等关键工序，以固井质量优质率99.66%的成绩交出答卷。

At the same time, strictly adhering to the CCUS well cementing technical standards, we selected an anti-corrosion and high-strength tri-cement slurry system, and optimized the key processes such as cement injection, displacement, and waiting for setting. With a quality rate of 99.66% for cementing, we delivered a satisfactory result.