TY - JOUR
TI - Comprehensive correction method of airtight coring saturation based on core classification
AU - Dong Junjie
AU - Deng Rui
JN - Thermal Science
PY - 2021
VL - 25
IS - 6
SP - 4153
EP - 4160
PT - Article
AB - The indoor comprehensive analysis of core saturation of airtight coring wells  is an important part of well logging interpretation. According to the  saturation data, the geological reserves can be accurately calculated, and  the remaining oil saturation and water-flooded zone in the later stage of  the production well can be accurately evaluated. Due to the influence of  many factors in the coring process and the experiment process, the sum of  the core oil and water saturation is usually not equal to 100%. At present,  conventional airtight coring correction method is generally to analyze the  oil-water saturation, and then correct the data of the same factors that  affect the results. This article combines two methods for saturation  correction of XX oilfield in China. For cores with consistent missing  factors, mathematical statistics are used to correct the saturation. When  most of the rock pores have irreducible water and remaining oil, the phase  percolation split method is used for the correction after the experimental  analysis. By comparing with the logging interpretation results and the  results of adjacent wells, the feasibility of the comprehensive correction  method can be verified.