In process of natural mining of bottom water, bottom water coning is caused by some factors such as oil-water contact without interlayer, bigger mobility, and so on.

• 底水油藏在自然开采过程中因油水界面无隔层、流度比较大等,易造成底水锥进,有效控制底水锥进速度直接影响油藏采出程度,为此,进行了先期堵水技术研究。