压降漏斗对油井产量具有重要影响,一方面压降漏斗扩大了储层的生产压差,使得单井动用范围扩大、更多的储层储量逐步被动用;另一方面压降漏斗附近的压力梯度远高于其他地区,若近井地带消耗的压差过大,将导致井间的有效压力梯度下降。实验研究表明降低原油粘度,可在一定程度上减小了井底压降漏斗的压降,提高地层中部的有效驱动压力梯度,从而提高油井产量。 Pressure drop funnel has an important impact on oil well production. On the one hand, the pressure drop funnel expands the production pressure difference of the reservoir, making single well use range expanded and more reservoir reserves gradually being used; on the other hand, pressure near the pressure reducing funnel The gradient is much higher than in other areas. If the pressure drop near the wellbore is too large, the effective pressure gradient between the wells will decrease. Experimental studies show that reducing the viscosity of crude oil can reduce the pressure drop of the downhole pressure drop funnel to a certain extent and improve the effective driving pressure gradient in the middle of the formation to improve oil well production.