辽河稠油水平井技术经济分析

辽河稠油水平井钻井技术研究是“八五”期间国家重点科技项目之一。与稀油井相比，稠油水平井具有地层胶结疏松、井眼易垮塌、需要注汽热采以及在采油期间井眼出砂等特点，因此，钻井成本也相应增加。根据辽河油田已完成的三口水平井的情况，对稠油水平井的技术经济效益进行了分析，提出应用水平井开发稠油油藏不仅在技术上可行，而且经济效益显著。

Economic Analysis of Horizontal Well in Visous Reseryiors in Liaohe Oilfield

As compared to welts in thin reserviors, the wells in visous reserviors have thecharaclerislics of unconsolisated beds, easily-collapsing wellbore, and sand flow during production andthermal recovery through gas injection; therefore,drilling cost bas been increased. On the basis ofthree horizonlal wells drilled already, economic analysis of borizental drilling in visors reserviorshave been done, and a conclusion has been drawn that borizontaldrilling in such reserviorstechnically feasible and its economic benefitis remarkable.