TOC在页岩气录井水平井地质导向中的应用

Application of TOC in Geosteering of Horizontal Wells in Shale Logging

目前页岩气的勘探开发主要采用“水平井+水力压裂”技术的方式进行。为了提高快速钻进下水平段在地质“甜点”中的穿行率,丰富地质导向手段,本文以地化TOC作为突破点,对区块内页岩层段TOC规律进行了分析。通过对比分析总结了一套适用于页岩气层卡层导向的方法,并应用于实际取得了良好的效果。

At present,“horizontal well+hydrofracture”is the main technology used in shale gas exploration and development. To improve trajection ratio of fast drilling lower horizontal segment in geological “sweet spot”and enrich geosteering methods, this paper analyzes TOC rules of shale section in the block taking place-based TOC as the breakthrough point and then puts forward a method for geosteering in shale gas section. Its application achieves a good result.