安棚地区低孔低渗地层气测解释方法探讨

Gaslogging interpretation methods for low pore and low permeable formation in Anpeng area.

由于安棚地区典型的低孔低渗储集层特点,造成常规录井油气层解释评价技术难以有效识别储集层流体性质的情况。该文通过对常规岩心、岩屑、地化录井、气测录井显示特征分析,提出了该地区的气测解释方法。包括①钻时法、②气测全烃曲线特征法、③气测后效显示情况、④图版法、⑤利用全烃曲线对比进行解释五种方法。从储集层能量的角度,详细介绍了低孔低渗地区的气测解释方法及其应用效果。为进一步探讨低孔低渗地区储集层评价工作,提供了实例。

As the typical low pore and low permeable reservoir properties in Anpeng area, the conventional mud logging oil & gas interpretation and evaluation technology was difficult to distinguish reservoir fluid properties effectively. By analyzing showing characteristics of conventional core, cuttings, geochemical logging and gaslogging, the paper provided the gas logging methods for the area as the following: ①ROP, ②gaslogging total hydrocarbon characteristics, ③gaslogging aftereffect showing condition,④interpretation chart and⑤interpretation using total hydrocarbon curve comparison. The author introduced detailed gaslogging interpretation methods and applying effects in low pore and low permeable area from the viewpoint of reservoir energy and provided real examples for further discussion of reservoir evaluation for low pore and low permeable area.