摘要
根据台兴油田的储层和流体特征 ,分析了注水水质对储层的伤害因素和机理。水敏伤害和注入水与地层水不配伍产生沉淀和结垢是吸水能力下降的主要因素。根据试验 ,防膨剂TDC -15 ,A -2 5 ,防垢剂TH -8185效果良好。及时、定时、定量投加防膨剂和防垢剂是防止注水水质对储层伤害的重要措施。对水处理工艺进行改造 ,增设脱氧、膜过滤系统 。
The factors and mechanism of damages of injection water quality to reservoirs have been analyzed, based on the characteristics of reservoirs and fluid from Taixing oilfield. Water injectivity is mainly affected by two major factors,i.e.water-sensitive damage and precipitation and scaling caused by the incompatibility between injection and formation waters.To prevent injection water causing damages to reservoirs, it is necessary to put antiexpanding and anti-scaling additives timely, regularly and quantitatively. After numerous tests, the antiexpanding additives TDC-5 and A-25, and anti-scaling additives TH-8185 show relatively good results. Additionally, by improving water treatment technology and setting up desoxygenation and membrane-filtering systems, the contents of dissolved oxygen and suspended solids in the water might come to the standards of injection water quality.
出处
《石油与天然气地质》
EI
CAS
CSCD
北大核心
2003年第1期87-90,共4页
Oil & Gas Geology
基金
中国石化新星石油公司科研项目(XYK2 0 0 0 - 24 )资助
关键词
台兴油田
注水水质
对策
储层伤害
injection water
water quality, reservoir
damages
countermeasure
