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堵水技术有多种 ,有一种是用强力聚合物凝胶永久性堵死见水区域。该方法只准凝胶进入见水层而不会污染邻近产层 ,因而对解决近井地带水的流动问题十分有效。封隔器及桥塞等机械设备可经常对凝胶充填进行控制 ,但凝胶仍会沿套管外围窜入产层。在这种情形下 ,发生严重窜流时 ,就无法对井进行机械封堵。在此讨论到的专用凝胶充填 ,即双注入技术可用来解决这种类型的堵水问题。双注入方式有多种 ,这里主要讨论全新的双注入系统。
A variety of water blocking technology, there is a strong polymer gel with a permanent block see the water area. This method only allows gels to enter the aquifer without contaminating the adjacent zones and is therefore very effective in solving the problem of the flow of water in the near-wellbore. Packer and bridge plug and other mechanical equipment can often gel filling control, but the gel will still fleeing along the periphery of the casing into the pay zone. In such a situation, the well can not be mechanically plugged in the event of serious channeling. The special gel filling discussed here, namely double injection technology, can be used to solve this type of water plugging problem. There are a variety of double injection methods, here mainly discusses the new dual injection system.