长堤油田桩 1块为一底水稠油油藏 ,主要含油层系为馆陶组上段 ,储集层为辫状河和曲流河相沉积 ,成岩作用弱 ,储集物性好 ;原油密度和粘度较大 ,油水粘度比为 354,边底水十分活跃。该油藏利用直井开发了1 6年 ,由于底水锥进快造成油井含水上升快 ,产量递减快 ,而采收率较低。通 Changdi Oilfield Pile 1 is a bottom water heavy oil reservoir. The main oil reservoir is the upper part of the Guantao Formation. The reservoirs are braided rivers and meandering river deposits with weak diagenesis and good reservoir properties. Crude oil density and viscosity Large, oil-water viscosity ratio of 354, the edge of the water is very active. The reservoir has been developed using vertical wells for 16 years. As the bottom water cone advances rapidly, the well hydraulically rises faster and yields less rapidly and with a lower recovery rate. through