摘要: With the gradually increasing applications of fiber-optic distributed temperature sensors(DTS)inunconventional resources exploitation,academic researchers have developed general theoretical modelsfor forward temperature simulation... 展开 With the gradually increasing applications of fiber-optic distributed temperature sensors(DTS)inunconventional resources exploitation,academic researchers have developed general theoretical modelsfor forward temperature simulation and inverse flow rate profiling during and after stimulation workover.However,there have been no enough field applications for the established theoretical models and somepractical issues still exist such as different completion scenarios are still lack of consideration in currentmodels.This paper presents a DTS flow profiling case for a horizontal multi-stage fractured well in tight gasreservoirs with open-hole packer completion scenarios by applying a newly improved theoretical model.In this paper,for the modeling part,we start with the semi-analytical wellbore-fracture-reservoir coupledflow/thermal model but improve it to consider open-hole packer completion scenario.Compared with theconventional cased,cemented and perforated completion style,the fracture initiation points in open-holestimulated well are more effected by near wellbore in-situ stress field.Therefore,the open-hole packercompletion possibly forms a two-fold flow regime.The formation fluid firstly flows through the fractureinto the open-hole annular space between formation and the packer liner,then flow along the annular spaceuntil meet the frac port on the production pipe.The two-fold flow regime results in double temperature dropsdue to Joule-Thompson cooling effect.The original theoretical model is improved by adding a simulationsub-region representing open-hole annular which helps to understand the flow and heat transfer inside it.With the improved mathematical model,DTS monitoring data during a three-rate production test in ahorizontal multi-stage fractured well in Erdos Basin of China was simulated and analyzed.The improvedmodel with open-hole packer completion was applied and then the gas flow profiling was accomplished. 收起