Split Phase Curtains On Annulus Three-phase Flow Logging Technology

At present,the daqing oil field is in the late development,the output is common in oil Wells of high water cut and low yield liquid and there exists a phenomenon of degassing in most of the output shaft,a three-phase flow status.Due to phase change of fluid flow pattern,and complex flow,three phase flow phase parameters detection is difficult,for the three-phase flow measurement techniques have been scrambling to explore new topic in the research of scholars both at home and abroad,currently in use of logging instrument,and no one can directly measure the output of oil and gas water three phase well content of the instrument.The instrument output three-phase flow well logging technology involved,by using the method of volume and gravity separation of oil and gas water three phase flow measurement,can be quantitatively calculated the water content of oil and gas of oil well output layer.In the complete flow conditions,through the sensor features different implementations of the judgment of oil and gas water,improve the accuracy of the measurement,at the same time reduce the difficulty of measuring.Based on the simulation of three-phase flow production profile logging instrument calibration comparison,as well as the field application of the experimental device improvement and analysis,phase splitting curtains on three-phase flow logging tool can reach the expected standard,and can achieve the goal of three phase measurement,and the field experiment analyzed the factors that affect the measurement result,for the development of the three phase flow measurement technology in the future,to provide the basis.