氮气泡沫技术治理高含水水平井的研究  

Study on Nitrogen Foam Technology for High Water-cut Horizontal Wells

作　　者：王建[1] 王桂勋[1] 唐洪涛[1] 高学生[1] 赵海晶[1] 潘卫东[1] 吴妍[1] 

机构地区：[1]中国石化胜利油田胜利采油厂工艺研究所,东营257051

出　　处：《精细石油化工进展》2009年第6期1-4,8,共5页Advances in Fine Petrochemicals

摘　　要：针对应用于底水油藏开发的水平井综合含水率上升速度较快的问题,采用氮气泡沫技术进行治理。通过室内模拟试验,评价了氮气泡沫的封堵能力、对油水层及高低渗地层的选择性封堵能力、以及在岩心中的稳定性,表明氮气泡沫能在一定程度上压制底水油藏含水上升的趋势;通过考察不同发泡剂、稳泡剂的发泡体积和半衰期,确定了十二烷基磺酸钠为发泡剂,聚丙烯酰胺为稳泡剂。并在两口不同类型水平井中进行了矿场试验,收到了良好效果,为下一步治理此类问题的水平井提供了一种经济有效的模式。The nitrogen foam technology was water reservoir. The plugging ability, selective used to treat high water-cut of the horizontal wells in bottom plugging ability between high and low permeability formations and oil-water layers, and stability in cores of the nitrogen foam was evaluated by simulation experiments in laboratory. The results showed that the nitrogen foam could inhibit the increase trend of the water-cut of horizontal wells in bottom water reservoir. By investigating foam volume and half-life of different foaming agents and stabilizers, SDS was selected as the foaming agent and PAM as the foam stabilizer. The technology was tested in two different type wells and gave a favorable result. It provided an economical and effective method for treating horizontal wells with such problem.

关 键 词：氮气泡沫技术 水平井 发泡剂 稳泡剂 

分 类 号：TE357[石油与天然气工程—油气田开发工程]