注水对沈84-安12油田高凝油藏冷伤害浅析  

Brief Analysis for Damage in the High Freezing Point Oil Reservoir Caused by Cool Water Injuction in Shen 84-An12 Oilfield.

作　　者：张崇刚[1] 朱静[1] 

机构地区：[1]辽河油田浅海石油开发公司

出　　处：《油气井测试》2001年第4期55-57,共3页Well Testing

摘　　要：高凝油藏主要采用注冷水开发工艺 ,对油层必然造成不同程度的冷伤害。通过对沈 84 安 12块十几口注水井的压降资料进行分析研究及解释评价 ,指出注入水的水质及温度 ,尤其是温度对高凝油藏的影响十分明显 ,温度过低会使高凝油藏严重污染 ,降低最终采收率。针对此情况 ,提出了合理的注水方案 ,使沈 84 安The high freezing point oil reservoir is usually developed by cool water flooding.It can make different degree formation damages.After having analyzed more than 10 wells injection test data in Shen84 An12 fault block in Shenyang oilfield,the results show that the quality and the temperature of the injection water,especially the temperature makes a significant effect.If the temperature is too low,the high freezing point oil reservoir will be seriously damaged,and the final oil recovery will be decreased.A new suitable injection process is developed and the formation damage is decreased.

关 键 词：高凝原油 注水 温度 地层损害 高凝油藏 冷伤害 

分 类 号：TE258.1[石油与天然气工程—油气井工程]