In order to get higher injection capacity and raise the coefficient of water driving waves and accelerate the speed of oil extraction. Changqing field carries on the development of horizontal-well infusion exploitation in the XXQ sandstone layer oil pool district. In compare with the traditional vertical-well affusion, the effect of comprehensive result of horizontal-well infusion exploitation will enhance as five times more as the current value. Because the flow of horizontal-well varies more in compare with the level-well, many horizontal-well logging data is hard to explain from the normal regulations because the influence of the dynamic state of well hole and the size of it. Basing on the flow state of horizontal-well and the analysis of the layer of the low degree state and the annular flow and the turbulent flow in order to get the parameters. To make attempt research to the quantitative interpretation of the horizontal-well.