青海日报格尔木讯：截至3月28日，中国石油青海油田公司在涩北气田优选2口气井开展的高效破胶体系先导性试验已连续稳定生产270天，单井日产气量稳定在0.7万立方米，施工成功率达100%。此举有效破解了涩北气田开发中后期面临的技术瓶颈，助力气田稳产上产、提质增效。

Germu News, Qinghai Daily: As of March 28th, the pilot test of the efficient gel-breaking system conducted on two selected gas wells in the Shibi North Gas Field by China National Petroleum Corporation's Qinghai Oilfield Company has achieved continuous stable production for 270 days. The daily gas output of each well has remained stable at 70,000 cubic meters, and the construction success rate has reached 100%. This move effectively solved the technical bottlenecks faced by the Shibi North Gas Field during its mid-to-late development stage, helping to maintain stable production, increase output, improve quality and enhance efficiency of the gas field.

涩北气田是目前国内海拔最高、环境最恶劣的产气区，也是青甘藏三省区主要气源地，已实现连续15年稳产天然气50亿立方米，累计产量突破1000亿立方米。

The Shibi Gas Field is currently the highest-altitude and most harshly-environmentally-challenged gas-producing area in China. It has achieved stable gas production of 5 billion cubic meters for 15 consecutive years, with a cumulative production exceeding 100 billion cubic meters.

作为典型的第四系生物成因疏松砂岩气藏，该气田进入开发中后期后，地层呈现低压、低温特征，加之“砂细如泥、水砂共舞”的地质特性，给压裂防砂施工带来挑战。

As a typical fourth-generation bio-formed loose sandstone gas reservoir, after the gas field entered the middle and late stages of development, the formation presented low pressure and low temperature characteristics. Coupled with the geological feature of "sand fine as mud and water and sand dancing together", this posed challenges for the fracturing sand control construction.

压裂技术是油气开采中提高采收率的关键手段，水基压裂液的破胶效果直接决定返排效率。

Fracturing technology is a key method for increasing oil and gas recovery rates in the oil and gas extraction process. The gel-breaking effect of water-based fracturing fluids directly determines the efficiency of flowback.

针对涩北气田低温环境下常规破胶剂性能下降、破胶不彻底等问题，青海油田组建专项攻关团队，以胍胶携砂液为研究重点，系统开展低温破胶剂筛选评价实验，模拟地层环境测定黏度变化、破胶速度等关键指标。

In response to the problems such as the reduced performance and incomplete gel dissolution of conventional gel-breaking agents in the low-temperature environment of the Shebei gas field, Qinghai Oilfield established a special research team. They focused on the guanidine gel sand-carrying fluid for research and systematically conducted experiments to screen and eva luate gel-breaking agents under low-temperature conditions. They also measured key indicators such as viscosity changes and gel dissolution speed in simulated formation environments.

经大量室内实验验证，最终优选出耐盐15万ppm、耐温30摄氏度的高效破胶体系，有效解决低温条件下破胶不彻底、返排困难的核心问题，填补了涩北气田低温破胶技术空白。

After numerous indoor experiments, an efficient gel-breaking system with a salt tolerance of 150,000 ppm and a temperature tolerance of 30 degrees Celsius was ultimately selected. This system effectively solved the core problem of incomplete gel breaking and difficult reflow under low-temperature conditions, filling the technological gap in gel breaking for the Shidebei gas field under low temperatures.