测井评价“三低”油气藏面临的挑战和发展方向

The present challenges and research direction of well logging evaluation methods in low porosity, low permeability and low saturation reservoir

“三低”油气藏,即低孔隙度、低渗透率和/或低饱和度为主要特征的复杂油气藏,已经成为国内外油气勘探开发的焦点.常规测井理论和方法在“三低”油气藏评价中面临许多挑战,常常显得无能为力.本文从常规测井响应特征出发,分析常规测井在“三低”油气藏的局限性,然后提出“三低”油气藏测井新理论新方法的基本出发点和思路.

In recent years, interpretation of complex reservoir with low porosity, low permeability and low saturation is one of the focuses of oil and gas exploration. The conventional reservoir evaluation faces the challenge. Based on the research of the theories of conventional logging respond to the special reservoir,the disadvantage of the logging interpretation for the reservoir evaluation method is reviewed in this paper. According to the advancement of the research, the new idea of the special reservoir evaluation is discussed.