产水已成为困扰成熟油气田开采的一个主要问题。高产水引起腐蚀和结垢的增加,流体处理设备的负荷增加,同时也带来了环境问题,最终导致关井(涉及大修费用)。为了避免水波及,产层不得不废弃,即使油层间隙还有可采的大量油气。在过去的几年中,使用聚合物体系控制油气井产水,并且取得了不同程度的成功。以丁基丙烯酰胺、丙烯酸酯共聚物(PAtBA)与聚乙烯亚胺为基础的胶联聚合物已经成功地应用于各种堵水施工中。文章叙述了世界范围内完成的200多次作业中的取样结果,包括在同一地理位置单独完成的90多次作业的平均结果。除了“标准的”基岩处理,也给出其他处理措施的结果,包括裸眼水平完井中封堵循环窜流以及封隔器与暂堵凝胶的联合应用。另外,文中还提供了与提高体系温度极限工作相关的实验数据。本文提供的数据说明,缓凝剂体系的发展可使最高驱替温度达到至少176℃。 Water production has become a major problem plaguing mature oil and gas fields. High yields of water cause increased corrosion and scaling, increased load on the fluid handling equipment, and environmental problems, eventually leading to shut-in (involving overhauling costs). In order to avoid water pollution, the production layer had to be discarded, even though there was a large amount of recoverable oil and gas in the oil gap. In the past few years, polymer systems have been used to control the production of oil and gas wells, with varying degrees of success. Adhesive polymers based on butyl acrylamide, acrylate copolymer (PAtBA) and polyethylenimine have been successfully used in various plugging constructions. The article describes the sampling results of more than 200 jobs completed worldwide, including the average of more than 90 jobs done in a single location in the same geographic location. In addition to the “standard” bedrock treatment, results are given for other treatments, including plug-in recirculation channeling in openhole horizontal completions and the combination of packer and temporary block gel. In addition, the article also provides experimental data related to increasing the temperature limit of the system. The data presented here shows that retarder systems have been developed to achieve a maximum displacement temperature of at least 176 ° C.