污泥凝胶颗粒调驱剂的研制及应用

Development and Application of Profile Control and Oil Displacement Agent Contained Oil Sludge Filled Gel Particle

杨昌华

YANG Changhua

为解决油田污水处理过程中污泥量不断增加的问题，用含油污泥、丙烯酰胺、硅溶胶、引发剂（过硫酸钾）和亚甲基双丙烯酰胺制备含油污泥填充凝胶颗粒调驱剂，研究了该调驱剂的耐温抗盐性、黏弹性和封堵性，并在中原油田进行了现场应用。结果表明，含油污泥填充凝胶颗粒可就地生产，反应在 20～ 30℃的常温下不需要反应釜即可进行，反应时间 1.5～ 2 h；用上下锯齿分散盘式搅拌桨的搅拌效果好于手工和叶片式搅拌桨搅拌；其污泥填充量可达 50%。与普通凝胶颗粒相比，含油污泥填充凝胶颗粒耐温抗盐性、黏弹性和封堵性均有提高。现场深部调剖效果较好，同时变废为宝，为油田提高采收率、减轻环保压力提供了技术支撑。图 6表 4参14

In order to solve the problem of increasing sludge volume in the process of oilfield sewage treatment，oily sludge filled gel particle flooding agent was prepared by oily sludge，acrylamide，silica sol，initiator potassium persulfate and methylene bisacrylamide. The temperature resistance，salt tolerance，viscoelasticity and plugging ability of the profile control agent were studied. Finally，the profile control agent was used in Zhongyuan oilfield. The results showed that the oily sludge filled gel particle could be produced locally，and the reaction could be carried out at normal temperature of 20—30℃ without reaction kettle. The reaction time was 1.5—2 h. The mixing effect of upper and lower sawtooth dispersing disc agitators was better than that of manual and blade agitators. The amount of sludge filled was up to 50%. Compared with ordinary gel particle，the oily sludge filled gel particle had higher temperature resistance，salt tolerance，viscoelasticity and plugging ability. The deep profile control effect on site of oily sludge filled gel particle was good，which made waste profitable，and provided technical support for improving oil recovery and reducing environmental pressure.