EFFECT OF PRESSURE DROP IN HORIZONTAL WELL ON FLUID FLOW IN/NEAR IT

This paper establishes a model simulating the fluid flowing toward or in the horizontal well based on the consideration of the effect of pressure drop in the horizontal well, thus has provided a necessary means for reservoir engineer or production engineer to predict the fluid flow in/near horizontal well. The case analysis indicates:when the pressure drop is serious in the horizontal wellbore, even if the single phase oil flow is presented in the reservoir or in the whole wellbore, the IPR curve is never a straight line, but a curve. The more serious the pressure drop, the more curving the single phase oil flow IPR curve is. For the reservoir with bottom water or gas cap, the diameter of the horizontal well must be increased properly, so as to reduce the pressure drop in the wellbore and delay the coning of water or gas.Subjectheading ho