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摘要:在内蒙古毛乌素沙地腹地苏36-4-9C4井作业现场,一场精密的“岩石疏通手术”顺利完成。此次作业入地液量累计达1262.5立方米,其中980立方米来自气田产出液,清水替代率高达77.6%。这意味着,气田压裂作业不再过度依赖珍贵的地表清水,实现了水资源利用的颠覆性突破。
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中国石油网消息:4月21日,在内蒙古毛乌素沙地腹地苏36-4-9C4井作业现场,一场精密的“岩石疏通手术”顺利完成。此次作业入地液量累计达1262.5立方米,其中980立方米来自气田产出液,清水替代率高达77.6%。 China Oil News: On April 21st, at the operation site of Well Su36-4-9C4 in the heart of the Mu Us Desert in Inner Mongolia, a meticulous "rock cleaning surgery" was successfully completed. The total volume of the drilling fluid injected into the ground reached 1,262.5 cubic meters, of which 980 cubic meters came from the production fluid of the gas field, and the water replacement rate was as high as 77.6%. 这意味着,气田压裂作业不再过度依赖珍贵的地表清水,实现了水资源利用的颠覆性突破。 This means that the gas field fracturing operations no longer overly rely on precious surface water, achieving a revolutionary breakthrough in water resource utilization. 毛乌素沙地既是黄河流域上游国家级水土流失重点治理区,也是我国陆上最大整装气田——苏里格气田的核心开发区。区域内植被覆盖率仅为23%,年降水量不足300毫米,蒸发量却高达2000毫米以上,每一滴水都堪称“沙漠珍宝”。 The Mu Us Desert is not only a national key area for water and soil erosion control in the upper reaches of the Yellow River, but also the core development zone of the largest onshore integrated gas field in China - the Sulige Gas Field. The vegetation coverage in this area is only 23%, and the annual precipitation is less than 300 millimeters, while the evaporation exceeds 2000 millimeters. Every drop of water can be regarded as a "precious resource" in the desert. 而苏里格气田储层致密,岩石孔隙是头发丝的百分之一,呈现出天然气“自己流不出来”的开发困局。传统的水力压裂技术虽然能为天然气开辟出穿行通道,却需要消耗大量清水。这与当地脆弱的水资源现状形成尖锐矛盾。 The reservoirs in the Suqing Gas Field are extremely dense, with the rock pores being only one percent the size of a human hair. This has led to a development predicament where the natural flow of natural gas is impossible. Although traditional hydraulic fracturing technology can create pathways for the gas to flow through, it requires a large amount of water. This is in sharp contradiction to the fragile water resources situation in the area. 立足技术突破、坚守生态底线,一场针对苏里格气田压裂技术的“减水—无水”革命悄然打响。技术团队扎根储层改造一线,历经数百次试验论证、配方优化,终于定制化推出高耐盐砂液一体化全域支撑压裂技术。这种给砂子“穿水外套”的创新设计,成为兼顾能源开发与生态保护的关键突破。 Based on technological breakthroughs and adhering to ecological bottom lines, a "water reduction - water-free" revolution targeting the fracturing technology of the Suirugi gas field has quietly begun. The technical team has been working on the front line of reservoir modification, conducting hundreds of experiments and optimizations of formulas, and finally customized and launched the integrated high-salt-resistant sand liquid all-round support fracturing technology. This innovative design of "putting a water coat on the sand" has become a key breakthrough that balances energy development and ecological protection. 如果说传统压裂方式是给岩石打通“人工通道”,那么新的砂液一体化技术就是给陶粒、石英砂等支撑剂穿上一件智能“水衣”——将聚合物粉末均匀敷布在支撑剂表面,施工时遇水迅速伸展增稠,把支撑剂牢牢“镶嵌”在分子链上,同步输送至地层深处。 If the traditional fracturing method is like creating "artificial channels" for rocks, then the new integrated sand-fluid technology is like giving the supporting materials such as陶粒 and quartz sand an intelligent "water suit" - by evenly applying polymer powder on the surface of the supporting materials, when encountering water during the construction process, it will rapidly expand and thicken, firmly "embedding" the supporting materials onto the molecular chains and simultaneously transporting them to the deep layers of the rock strata. 这一创新精准攻克了传统工艺的两大核心痛点:耐盐性拉满,无须依赖珍贵清水,直接利用气田伴生的采出水即可施工;携砂力升级,现场实测砂比最高达41%,加砂效率提升后直接带动整体减水19.6%,作业效率也随之大幅提升,真正走出了一条“以水养气、以气护水”的新型开发“水路”。 This innovation precisely addresses the two core pain points of traditional processes: the salt resistance has been fully enhanced, and there is no need to rely on precious fresh water; the sand-carrying capacity has been upgraded. Construction can be carried out directly using the produced water accompanying the gas field. The maximum sand ratio measured on-site reached 41%. After improving the sand addition efficiency, the overall water reduction was directly achieved by 19.6%, and the operation efficiency was also significantly improved. Truly, it has pioneered a new type of development "waterway" that "replenishes water with gas and protects water with gas". “以前,压裂液离不开清水,就像人离不开干净的饮用水。现在我们打破了这个局限,让压裂液能‘喝’气田自己产生的‘废水’,真正实现了水资源的循环利用。”苏里格气田开发分公司总工程师侯山算了一笔账:截至目前,苏里格气田6口井采用该技术进行压裂作业,入地液量累计超7300立方米,气田产出液替代量近4500立方米,清水替代率较其他耐盐压裂液体系提升15%,压裂液成本较传统胍胶等压裂液体系降低9%,且试气及投产效果与常规压裂持平,充分证实了该项技术的可靠性与经济性。 "Previously, the fracturing fluid could only be made of water, just as people cannot live without clean drinking water. Now, we have broken this limitation and enabled the fracturing fluid to 'drink' the 'waste water' produced by the gas field itself. This truly realizes the recycling of water resources." Hou Shan, the chief engineer of the Suli Ge Gas Field Development Branch, calculated the following: As of now, 6 wells in the Suli Ge gas field have adopted this technology for fracturing operations. The total volume of the fluid injected into the ground has exceeded 7,300 cubic meters, and the amount of fluid replaced by the gas field's produced liquid is nearly 4,500 cubic meters. The water substitution rate of this system has increased by 15% compared to other salt-resistant fracturing fluid systems. The cost of the fracturing fluid has decreased by 9% compared to traditional guanidine-based fracturing fluid systems. Moreover, the gas testing and production results are on par with those of conventional fracturing, fully confirming the reliability and economic efficiency of this technology." |

















