摘要
如何准确预测环空气窜，一直是国内外的一个研究目标。ＤｏｗｌＳｃｈｌｕｍｂｅｒｇｅｒ公司提出的预测固井后是否会发生气窜的方法，通过综合分析几个可能影响气窜的参数，从总体上评价出固井后环空防气窜的能力，在预测气窜上取得了一定的效果。但该方法是根据国外有关油气田的大量气井资料通过统计分析后得出的，并且以计算尺的方式提供给现场使用，这给我国气井开发中应用和改进该项技术带来了一定难度。文中主要介绍了对这一方法所进行的解析分析，并提出了应用这项技术的解析公式，指出了进一步完善该项技术的方法。
How to accurately predict the gas channelling in annulus is always a studying object at home and abroad. A certain result in predicting gas channelling has been obtained by the predicting method of whether the gas channelling will occur after cementing,proposed by Dowell Schlumberger,i.e. overall evaluating the chances of controlling gas migration (CCGM) in annulus after cementing through comprehensively analyzing several parameters being able to influence gas channelling.But this method is resulted from the statistics and analysis based on a vast amount of the gas well data from foreign oil and gas fields and it is offered in a manner of slide rule for the use at site,so it brings a certain difficulties in applying and improving this technique for the oil and gas field development in China.In this article,the analysis of this method is mainly introduced,the analytic formula of applying this technique is proposed and the method to further perfect this technique is pointed out.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
1997年第5期48-51,共4页
Natural Gas Industry
关键词
固井
注水泥
防窜
预测
解析法
气井
Well cementing,Cementing,Cement channelling,Channelling prevention,Cement slurry,Prediction.
