地球化学在页岩气勘探开发评价中的应用

Geochemistry Application to the Shale Gas Exploration and Evaluation

受北美尤其是美国页岩气勘探开发获得巨大成功的启示,页岩气也逐渐成为我国非常规天然气勘探领域中的重点和热点之一.地球化学作为一种重要的基础研究手段,贯穿整个页岩气资源评价及有利目标选取过程.本文就页岩气勘探开发中几个关键地球化学指标:页岩气组成分、总有机碳、有机质类型、有机质成熟度、脆性矿物含量、解析气量和吸附特征等进行了初步的总结和探讨.

Inspired by the success of shale gas exploration in North American, especially America, the shale gas in china has al- ready become a key and hot spot. As an important fundamental study approach, geochemistry has been used in whole resource e- valuation and the best target zone. This paper focuses on several key geochemistry parameters which can have great effects on shale gas exploration and play, such as：the material of shale gas, total organic carbonate, type of organic matters, the maturity of organic, the content of brittle minerals, content of resolution gas and characteristic of adsorb. At last, some primary conclusions are drawn and some discussions are made.