页岩气水平井地质导向技术研究与应用

Research and Application of Horizontal Well Geosteering Technology in Shale Gas Field

为了实现页岩气田水平井最优化轨迹钻探及穿越高效页岩气层的地质开发任务,结合页岩气开发过程中的实际需求,逐步形成了完善的水平井地质导向技术。根据页岩气藏特性及地质导向技术的适应性,采用了随钻LWD或MWD+综合录井+导向软件+远传专家决策的模式。目前,地质导向技术在现场应用7口井,在页岩气层的钻遇率到达了100%,开发效果得到了明显的提高,为页岩气井的规模开发奠定了基础。

In order to realize optimized trajectory drilling of horizontal wells in shale gas field and geology development through efficient shale gas reservoir ,improved horizontal well geosteering technology is gradually in place to meet the requirement of shale gas development .Logging while drilling （LWD） or pattern of measurement while drilling （MWD） combined with compound logging ,steering software and teletransmission expert decision is used in accord‐ance with the feature of shale gas reservoir and the adaptation of geosteering technology .In seven wells using the technology ,shale gas layer drilling rate gets to 100% ,a better development result .This technology lays a founda‐tion for scale development of shale gas wells .