页岩气水平井段固井难题分析及其应对策略

Shale Gas Horizontal Well Cementing Problem Analysis and Countermeasures

文章从目前我国在页岩气水平井固井上存在的难题主要为顶替效率差、水泥环完整性难保存和水泥浆体系选择困难三个方面着手,具体分析固井质量影响因素,并提出应对措施。

At present, the problems in the well cementing of shale gas horizontal well are mainly manifested in the poor efficiency of displacement, the difficulty of preserving the integrity of the cement ring and the selection of cement slurry system. From the three aspects above, the paper analyses the factors influencing the cementing quality of shale gas horizontal well in detail and puts forward some countermeasures.