中国石油网消息：华北油田油气工艺研究院技术团队依托“双流度”控制技术，有效遏制注水指进、提高油井产能，破解束21断块稠油油藏注水开发难题。截至目前，束21断块应用该技术后，综合含水率下降13.5%，累计增油量达720吨。

China Oil News: The technical team of the Oil and Gas Technology Research Institute of North China Oilfield has effectively controlled the water influx and enhanced the production capacity of oil wells by relying on the "dual flow rate" control technology. They have solved the problem of water injection development in the thick oil reservoirs of the Shu21 block. As of now, after applying this technology in the Shu21 block, the overall water content has decreased by 13.5%, and the cumulative oil production has reached 720 tons.

束21断块是华北油田典型的稠油油藏。随着开发持续深入，该区块油水黏度比偏高的矛盾日益凸显，注水指进现象严重、波及范围受限、驱油效率偏低等问题突出，常规开发手段难以适配其复杂的地质特征，制约油藏采收率提高与效益开发。面对这一技术难题，华北油田精准锁定被驱替相黏度、驱替相黏度两大关键控制参数，采用“双流度”控制技术，打造“水相增黏+原油降黏”双向调整技术体系，实现稠油开发关键技术突破。

Block 21 is a typical heavy oil reservoir in the North China Oilfield. As the development continues to deepen, the contradiction of the high viscosity ratio between oil and water in this block has become increasingly prominent. Severe water injection advancement, limited sweep area, and low oil displacement efficiency are prominent problems. Conventional development methods are difficult to adapt to its complex geological characteristics, which restricts the improvement of reservoir recovery rate and the efficient development. Facing this technical challenge, the North China Oilfield accurately targeted the two key control parameters of the displaced phase viscosity and the displacement phase viscosity, adopted the "dual flow rate" control technology, and created a "water phase thickening + crude oil thinning" two-way adjustment technical system to achieve a breakthrough in key technologies for heavy oil development.

在技术实施上，项目团队精准匹配两套针对性技术体系，形成双重增效合力。一方面采用高黏活性聚合物体系完成水相增黏，优化流度比，有效扩大注水波及体积，解决波及不均问题；另一方面运用生物化学复合体系实现原油降黏，降低稠油流动阻力，提高驱油效率。两套体系协同发力、耦合作用，充分发挥优势。

In terms of technical implementation, the project team precisely matched two sets of targeted technical systems, forming a dual synergy effect. On one hand, the high-viscosity active polymer system was adopted to complete water-phase viscosity enhancement, optimize the flow ratio, effectively expand the water injection sweep volume, and solve the problem of uneven coverage; on the other hand, the biochemical composite system was used to reduce the viscosity of crude oil, lower the flow resistance of heavy oil, and improve the oil recovery efficiency. The two systems worked together and interacted with each other, fully leveraging their advantages.

为保障技术落地见效，技术团队强化全流程工艺管控，严格配液质量全过程监测，精准优化注入流程与施工参数，建立措施效果周分析、月汇报工作机制，持续完善油井动态管理与调整措施，将技术应用转化为增产实效。

To ensure the effective implementation of the technology, the technical team strengthened the control of the entire process of the technology, strictly monitored the quality of the solution preparation throughout the process, precisely optimized the injection process and construction parameters, established a weekly analysis and monthly reporting mechanism for the effectiveness of the measures, continuously improved the dynamic management of oil wells and adjustment measures, and transformed the application of the technology into actual production increases.

该技术自2月实施以来，成效显著。试验井组日产油量提高8.7吨，有效盘活稠油油藏剩余储量资源，验证了“双流度”控制技术在稠油开发中的适用性与可靠性。

Since the implementation of this technology in February, the results have been remarkable. The daily oil production of the test well group has increased by 8.7 tons, effectively revitalizing the remaining reserves of heavy oil reservoirs. This has verified the applicability and reliability of the "dual flow rate" control technology in the development of heavy oil.