油基泡沫钻井流体技术分析

Analysis of oil based foam drilling fluid technology

在水敏性地层如果出现了水基泡沫钻井流体,泥页岩水化膨胀问题容易出现,有地层出水出现于气体钻井过程中,就会向水基泡沫钻井流体转换,实践研究表明,很容易有井壁坍塌问题出现于这个过程中。本文通过一系列的实验,分析了油基泡沫钻井流体技术,希望可以提供一些有价值的参考意见。

In the water sensitive formation if the foam drilling fluid, shale hydration expansion problems, with formation water ingas drilling process, conversion to aqueous foam drilling fluid.It was showed that the problems was easy to emerge .Through a series ofexperiments,the author analyzed oil based foam drilling fluid technology, hoping to provide some valuable reference.