马北油田水平井采油工艺与开采现状认识

利用水平井技术开发油藏,是油田提高油气采收率的重要技术手段,特别是在低渗透油藏、裂缝性油藏、薄油层油藏、断块油藏、稠油油藏、气顶底水油藏以及砾岩油藏中,由于水平井有着钻达目的油层井段长,泄油面积大,流体流入井筒阻力小等特点,产油能力远高于直井、定向井,以及水平井较直井、定向井具有其采油指数高,生产压差低,无水采油期长,含水上升慢,受到广泛重视,并在各油田得到广泛应用。

Oil Production Technology of Horizontal Well of Mabei Oilfield and Mining Status

Using the horizontal well technology to develop oil reservoir is important technical means to improve recovery ratio of oil-gas oilfield,especially in low permeability reservoirs,fractured reservoir and thin-layer oil reservoir,fault block reservoir,heavy oil reservoirs,gas cap reservoirs with bottom water as well as conglomerate oil reservoir,because horizontal well has features,i.e.drilling oil Well is long,oil spills area is large,and resistance of fluid inflowing the borehole is small.Oil production capacity is far higher than vertical well,directional well,compared to directional well,horizontal well has high oil production index,low production differential pressure,long period without water,slow water cut rose,which has been paid attention to,and widely used in various oil field.