油田水无机结垢及预测技术研究进展

Review on Inorganic Scaling and Prediction of Field Water

概述了油田水无机结垢的主要类型、结垢机理及预测方法。主要介绍了油田水怎样成垢及为何成垢、成垢步骤、机理及影响因素 ;饱和指数法和稳定指数法对碳酸盐结垢的预测 ;热力学溶解度法和饱和指数法对硫酸盐结垢的预测 ;若结垢 ,结垢最大量为多少及成垢离子如何分布。无机结垢预测技术必将为油田管线的防垢除垢带来帮助。

We introduce the maintypes,mechanism and predicting methods of inorganic scaling of field water.The article covers four topics:firstly,why the field water forms scale,the steps,mechanism and influence factors of scale formation; secondly,using the index of saturationg to predict the scale formation of carbonate;thirdly,predicting the scale formationg of sulfate by using the index of RI;and fourthly,if the scale formation has formed,how much scale there will have and how the scale ions distribute.The technology of inorganic scaling prediction will be very helpful to the working of scaling prevention and descaling in oil field.