大邑地区测井解释难点分析

Analyze Log-interpretation Difficulties in Dayi Area

川西凹陷大邑地区目前已完钻5口井,根据目前大邑地区解释与测试情况的对比分析,认为该地区测井解释中仍存在一定的难点,主要是测井解释中裂缝发育程度以及砂岩中含有炭质对储层的影响。为此,利用测井解释实例分析,找出测井解释中存在的问题,认识到电阻率对裂缝以及炭质的认识有重要作用,这为大邑地区下一步的储层解释奠定了基础。

So far,five wells have been successfully drilled in Dayi area of western Sichuan Depression.According to a comparative analysis between log interpretation and well test in this area,it is believed that there are still some difficulties in log interpretation.The major one is the effects of fracture development and carbon content in sandstone on reservoirs.Existing problems in log interpretation have been presented in this paper by using case studies.It is recognized that resistivity plays an important role in understanding the fracture and carbon.The recognition lays foundation for future reservoir interpretation in Dayi area.