甲基葡萄糖甙钻井液体系室内研究

Lab Research of MEG Drilling Fluid

白波 陈书明 孔羽 游炎平 谢志涛

BAI Bo CHEN Shuming KONG Yu YOU Yanping XIE Zhitao

长江大学石油工程学院, 湖北荆州 434023

Petroleum Engineering College, Yangtze University, Jingzhou Hubei 434023, China

通过室内实验,优选了甲基葡萄糖甙钻井液的添加剂及最佳加量,确定其基本配方为水+3%膨润土+15%MEG+5%Na2CO3+0.3%FA367+0.1%KPAM+0.5%HFL-2。实验结果表明,该体系具有良好的流变性,在甲基葡萄糖甙加量为15%时体系的滚动回收率超过80%,表现出了很强的抑制性;同时,通过动态污染试验获得的数据是平均渗透率恢复值达到了88.9%,表明其储层保护效果良好。

The additive for drilling fluid and optimal concentration have been selected through lab experiments. The basical formula is as follows: water+3%bentonite+15%MEG+5%Na2C03+0.3%FA367+0.1%KPAM+0.5%HFL-2. The experiment results show that the system has good rheological properties. When added amount up is to 15%, the cutting roller recovery is over 80%. On the basis of the lab experiment on dynamic pollution, the average of permeability recovery value is up to 88.9%.

https://doi.org/10.3969/j.issn.1008-2336.2012.03.103