罗52区地层水与注入水水质分析及结垢趋势预测  

Analysis of the quality of formation water and injected water and prediction of scaling mechanism of Luo 52 Block

作　　者：赵立翠[1] 高旺来[1] 赵莉[1] 王珊珊[1] 周焱斌[1] 马世英[2] 

机构地区：[1]中国石油大学(北京)石油工程学院,北京102249 [2]中国石油勘探开发研究院,北京100083

出　　处：《石油化工应用》2013年第3期4-8,共5页Petrochemical Industry Application

基　　金：中国石油科技创新基金研究项目(2011D-5006-0207)

摘　　要：在油田注水开发过程中,如果有两种以上不相容的水相遇,就容易产生无机垢,结垢造成了油田开采过程中大量的经济损失。本文首先通过一系列的实验研究,分析了罗52区地层水和注入水的水质特征,总结了目前碳酸钙和硫酸钙结垢趋势的预测方法,进而对不同配比下地层水与注入水混合后碳酸钙和硫酸钙的结垢趋势进行了预测。实验结果表明:罗52区地层水与两种类型注入水按不同比例混合后,基本上无碳酸钙和硫酸钙结垢趋势,即两种水样静态配伍性较好,这将有利于油田的注水开发。In the process of water flooding, if there are two or more kinds of incompatible water meet, it is easy to produce inorganic scale which will cause significant economic losses in the oil exploration process. The quality of formation and injected water of Luo 52 Block are analyzed in this article using a series of experimental studies. The methods of predicting the calcium carbonate and calcium sulphate are summarized. Then the scaling tendency prediction method is used to determine whether there is the tendency to generate calcium carbonate and calcium sulphate when formation water and injected water are mixed with dif- ferent proportions. The results show that there is no tendency to generate inorganic scales.That is to say tile compatibility of fimnation water and injecled water is good which will be helpful tbr water flooding of oil fiehts.

关 键 词：水质分析 碳酸钙 硫酸钙 结垢预测 

分 类 号：TE357.6[石油与天然气工程—油气田开发工程]