致密油射孔簇有效性的测井评价方法.pdfVIP

Vol No W EL L L O G GIN G T EC H N O L O GY Apr P A Doi issn j Log Evaluation Method for Effectiveness of Tight Oil Perforation Clusters A N Jixing DONG Yinmeng T A N Yusong SU M in XY U Fei LI Na H uabei Divisio n China Pet roleum L og ging CO L T D Renqiu H ebei China Abstract T ight oil of ten requires large f racturing renovation to achieve production capacity T he liquid output of the selected perf oration clusters is not homogeneous M o st of the perf oration clusters did no t reach the f racturing eff ect and produced low yield w ithout eff ective perf oration clusters How to optimize perf orating cluster becomes urgent problem In north China through the research on tight oil reservoir of Shulu concave Huabei oilf ield it is f ound that the f racture parameters ratio of resistivity brittleness index array acoustic parameters such as permeability index and porous structure ex ponent have better correlation w ith reservoir characteristics and reservoir capacity Based on that w e created a logging comprehensive evaluation parameter to evaluate perf orating cluster eff ectiveness Perf oration clusters can be divided into three ty pes according to reservoir capacity standard t