气田高温回注水管道结垢机理研究  

Study on Scale Formation Mechanisms of High-temperature Water Injection System

作　　者：陈璐璐[1] 孟江[1] 田园[1] 朱章雄[1] 苏畅[1] 孙海虹[1] 王小琳[1] 宗世东[1] 

机构地区：[1]重庆科技学院石油与天然气工程学院,油气储运工程08级重庆401331

出　　处：《广州化工》2011年第11期73-75,80,共4页GuangZhou Chemical Industry

摘　　要：低温或常温气田回注水结垢的机理研究已经比较成熟,但对于气田高温回注水的结垢研究尚不够深入。气田高温回注水结垢受成垢离子种类和浓度、pH值、温度以及矿化度大小的影响。单一成垢离子和成垢离子浓度低以及pH值和温度下降都可以抑制水垢的生成,水的矿化度变大对水垢的生成有促进作用;而硫酸盐的存在对硫酸盐垢的形成有很大的促进作用。气田高温回注水结垢机理可以用结晶理论、吸附理论、沉降作用、不相容理论和热力学条件变化理论来阐述。At present, the researches and prevention measures of scaling in reinjection water system at low tempera- ture or room temperature were mature, but the research about scaling at high -temperature was still not deep enough. Ion species and ion consistency, pH, temperature and salinity had affects on scaling. Single ion, low ion consistency, pH and temperature drops can prevent scaling and high salinity promote the scaling. The existence of sulfate had a great promotion on generating of sulfate scaling. Crystallization theory, adsorption theory, sedimentation, exclusion principle, changes in conditions of thermodynamic theory can explain scale mechanisms of high - temperature water injection system.

关 键 词：高温 回注水 结垢 机理 

分 类 号：TQ051.5[化学工程]