关键词: 光电效, 应康普顿效, 质量吸收系数, 视含水率

Abstract: This paper deals with a new method of measuring density and water cut of running oiI in the oil pipeline,a method based on photoelectric effect and Compton's effect of the effects of γ-ray and matter.For γ-ray of different energy every composition in the oil is characterized by mass absorption coefficient,and so we can accurately measure density and water cut of running oil using their relation.The method of measuring oil density and waqter cut can be used in oil-logging,oil-storing and oil-transporting.