文25东交联聚合物-预交联凝胶颗粒复合调驱试验  

Complex Displacement Test with Crosslinked Polymer and Pre-Crosslinked Gel Agent in Wenliu-25 East Block

作　　者：娄兆彬[1] 王志鹏[2] 邹丽[2] 李涤淑[3] 

机构地区：[1]中国地质大学能源地质系,北京100083 [2]中国石化中原油田分公司勘探开发科学研究院,河南濮阳457001 [3]中国石化中原油田分公司采油一厂,河南濮阳457001

出　　处：《新疆石油地质》2005年第3期290-292,共3页Xinjiang Petroleum Geology

摘　　要：针对高温高盐的严重非均质油藏,提出了交联-预交联复合调驱的技术设想,以进一步挖掘开发中后期高含水油藏的剩余油潜力,交联-预交联复合调驱结合了两种调驱剂不同的驱油机理,以实现驱替过程中的调堵协同作用。为验证技术可行性,复合调驱技术首先在文25东块实施,试验共选择了9个井组,实施完成7个井组,共注各种调驱剂7.9226×104m3,总体效果实现了注入压力升高、改善波及体积的目的,试验累积增油8305t,是单纯预交联调驱增油效果的1.3倍。In light of reservoirs with high temperature,high salinity and high heterogeneity,this paper proposed the technique of using crosslinked polymer and pre-crosslinked gel agent for complex displacement to further exploit remaining oil potential during high water-cut stage.These two profile control agents are of different oil displacement mechanisms and act as coordination of flooding and plugging.In order to testify the validity of the technique,field tests have been made in selected 9 well groups in Wenliu-25 east block,of which 7 have been fulfilled,injecting agents of 7.922 6×104 m3 in total.The results show higher injection pressure and improved sweep efficiency.The amount of cumulatively increased oil reaches 8 305 t,corresponding to 1.3 times that of simply using pre-crosslinked agent in effectiveness.

关 键 词：非均质油藏 剩余油潜力 驱油机理 调驱剂 复合调驱技术 

分 类 号：TE327[石油与天然气工程—油气田开发工程] TE357.4