测井方法在库车坳陷古近系盐系地层的应用OA

To systematically investigate the logging response characteristics of the Paleogene salt strata in the Kuqa Depression and provide a theoretical basis for potash exploration,this study takes Well Yangta 4 in the Kuqa Depression as the research subject and conducts a comprehensive analysis of the logging curve characteristics of different Paleogene lithologies in the area based on logging data.The results show that in the salt-bearing intervals,potassium content is positively correlated with natural gamma ray values,resistivity exhibits high values,while borehole diameter log and spontaneous potential log show no significant variations.Chemical analysis of cuttings from potassium-bearing intervals matches well with the well-logging responses,further validating the applicability of well-logging methods in solid potash exploration.Integrated analysis of the well-logging characteristics and chemical results from the salt-bearing intervals of Well Yangta 4 indicates that the Kuqa Depression has promising prospects for potash exploration.