水平井开发低渗油藏数值模拟研究

Numerical Simulation Study on Horizontal Well Exploitation of Low Permeability Reservoir

低渗透油藏储层物性差,直井与油层的接触面积小,在井底附近原油流动阻力大,压力梯度高,容易造成油层过早水淹,使原油采收率降低;而水平井泄油面积大,对低渗油藏的开采有较好的优势。本文探讨了低渗透油藏直井与水平井混合开采的数值模拟研究,得到了比较好的水平井开采方式,对实际井网部署提供了理论根据。

Because of low permeability reservoir bed has a bad physical property,So the straight well has a small area contact with oil layer . there is a large oil flow resistance and a high press gratitude at the bottom of the well, which easily result in oil layer drown out earlier, reduce the recovery ratio, while horizontal well has a large oil drain, it is a good advantage for the exploitation of the Low permeability reservoir. This paper studied the numerical simulation of the commingline of the straight well and horizontal well in Low permeability rcservoir, get a better exploitation mode of horizontal well and provided a theory basis for deploy of well network.