南海东部油田强底水油藏水平井开采特征及开采对策研究

以南海东部某底水油藏为例,进行了水平井开采特征及开采对策研究。通过计算油藏的实际过水倍数分布,发现沿水平井段过水倍数分布差异大,非均衡供液严重,存在欠水驱的低效段,影响水平井开发效果。针对这种现象,通过研究AICD(Auto Inflow Control Device)控水技术的工作原理及增油机理,认为AICD能够自主控水、均衡供液,比ICD(Inflow Control Device)控水技术更有效地提高水平井有效井段,更好地改善开发效果,并在油藏数值模拟中得到了验证,具有较好的应用前景。

Producing characteristics and producing strategy of horizontal wells in strong bottom water reservoir

By taking a bottom water reservoir in eastern South China Sea as an example,the research on producing characteristic and development strategy of horizontal wells was carried out.Through Petrel RE,the multiple distribution of practical water crossing was calculated,and it was found that the multiple distribution along the horizontal section varied greatly,the fluid supply was seriously unbalanced and there existed low efficient sections without water flooding,all of these greatly affecting horizontal well development effect.In response to this kind of phenomenon,through the study on working principle and oil incremental mechanism of AICD(Auto Inflow Control Device),it is believed that compared with ICD(Inflow Control Device),AICD can automatically control water,provide balanced fluid,more efficiently increase the horizontal well sections,better improve the development effect and it has been verified in the reservoir numerical simulation.Therefore,AICD has good application prospect.