Study on logging features method of hydrocarbon reservoir in complex reservoir space

The carbonate reservoirs in northern Tarim Basin are highly heterogeneous.It's hard to identify fissures and caves by using conventional logging.By integrating resistivity image logging techniques,logging information can be well used to qualitatively analyze and quantitatively evaluate carbonate reservoirs.And it can accurately determine fracture feature, permeability,as well as development of primary and secondary pores in carbonate reservoir.Meanwhile the application results of explanation are testified by well testing.This paper presents a study of explanation method and effectiveness of reservoir parameter of buried hill carbonate reservoirs in Lunnan reservoir of Tarim Basin,which overcome influence of horizontal detection depth and heterogeneity by combining conventional logging and imaging logging information.Through analysis on property of heterogeneity reservoir and fracture distribution,the accuracy of logging explanation in carbonate reservoirs is increased,finally resulting in correct evaluation on carbonate reservoirs.