影响预交联凝胶颗粒性能的因素分析  

Analysis on factors influencing the performance of pre - crosslinked gel particles.

作　　者：吴应川[1] 白宝君 赵化廷[3] 肖利平[3] 赵普春[3] 

机构地区：[1]中原油田分公司勘探开发科学研究院 [2]New Mexico Institute of Mining and Technology [3]中原油田分公司采油三厂

出　　处：《油气地质与采收率》2005年第4期55-57,i0006,共4页Petroleum Geology and Recovery Efficiency

摘　　要：从凝胶颗粒的基本特征、外观形态、粒径分布分析入手,研究了膨胀倍数及粘弹性等特征参数,评价了颗粒的物理化学性能。实验结果表明,预交联凝胶颗粒适宜于高矿化度的地层,对pH值无具体要求,长期热稳定性好。在95℃条件下考察两年和120℃条件下考察一年均未发现脱水现象。膨胀倍数在30-200倍,也可根据实际选择合适的膨胀倍数。Beginning with analysis on basic features, visual form and grain - size distribution of gel particles, expansion multiple,viscoelasticity and other characteristic parameters were researched. Physical and chemical performance of the particle was evaluated. Experiment results show that pre - crosslinked gel particles were suitable to high -salinity formations without specific demand to pH value and good long - term thermal stability. Dehydrolysis phenomenon didn＇t appear in two years under 95℃ and in one year under 120℃. Expansion multiple was 30～200,which can be selected according to the actual.

关 键 词：预交联凝肢颗粒 适用条件 评价方法 外观形态 膨胀倍数 粘弹特征 

分 类 号：TE358.3[石油与天然气工程—油气田开发工程]