Muti-well Log Interpretation And Evaluation Of Donghe Sandstone In Tarim Basin

Over a period of time of development,it is very complex about the oil,water and remaining oil distribution of Donghe Sandstone reservoir of Tarim basin.The accuracy of the early phase interpretation model of the prophase prospecting is low,It is not unsuited for new wells and can`t interpretate the old wells correctly.According to the researching situation of the well log evaluation of the research area above,based on a lot of data of core and guide by geological cognition,this paper evaluates the Donghe sandstone reservoir of Tarim basin by different lithofacies.First,based on the core data,it does the pretreatment to the data of well logging;Then,by the analysis of four properties,this paper confirms that Donghe Sandstone reservoir is medium porosity,medium-high permibility reservoir and formed by fine sandstone and siltstone,this paper uses the core data to build a well logging interpretation model that is suited the section,and provides a reliable plate of quantitave calculation for the accurate calculation of lithology,property and oiliness.By the researching of the section above,this paper does the comprehensive researching of well logging and interpretates the section again.