裂缝性油藏油井指示曲线图版的制作方法

A TECHNIQUE FOR CONSTRUCTING OIL WELL INDEX CURVES IN A NATURALLY FRACTURED RESERVOIR

分析了裂缝性油藏油井指示曲线的特点,考虑油层岩石变形和油流惯性阻力两个因素,介绍了裂缝性油藏油井指示曲线公式的通式,指出这一通式对孔隙性油藏同样适用。导出了裂缝性油藏油井指示曲线的简化公式,并提出应用这一简化公式制作油井指示曲线图版的方法,算例表明这一简化公式的适用性。

The feature of the oil well index curves in the naturally fractured reservoir are analysed.Taking two factors into consideration(the defomation of the forma- tion rock,and the flow inertia),a general formula for calculating the oil well index curve in a natunally fractured reservoir is presented.It is indicated that this general formula can also apply to a porous reservoir.A simplified formula of the oil well index curve in a natunally fractured reservoir is derived.The technique for constructing the oil well index curves by using the simplified formula is presented.An example is given indicating the applicability of this simplified formula.