摘要
应用Ｄａｖｉｓ 和Ｓｔｉｆｆ 等预测ＣａＣＯ３ 结垢趋势和结垢严重程度的公式以及带压力注水系统中ｐＨ 值计算方法，对陈堡油田陈２ 、陈３ 块混合污水进行了ＣａＣＯ３ 结垢理论预测，通过库尔特粒径分析证实了理论预测结果。
The tendency to scaling of CaCO 3 in mixed produced water of Blocks Chenbao 2 and 3 is predicted by using Still Davis' stabilization index SI , Oddo Tomson's equation for downhole pH value, and Valone Skillern's criterium PTB . Both single produced waters of Blocks Chenbao 2 and 3 are not scaling at surface and downhole. Their mixture(1∶1 in volume) is scaling slightly at surface (50℃): SI =0.221, TPB =13.46; is scaling seriously downhole (80℃): SI =0.598, PTB =131.2. This prediction is verified by determinations of particle size and amount in single and mixed water samples.
出处
《油田化学》
CAS
CSCD
北大核心
1999年第4期326-328,共3页
Oilfield Chemistry
关键词
结垢
回注污水
油田注水
碳酸钙
注入水
Calcium Carbonate Scale
Oilfield Produced Waters for Reinjection
Scaling Tendency
Compatibility
Theoretical Prediction
Particle Size Analysis
