利用水平井技术提高欢西油田稠油储量动用潜力研究

Potential study on improving producing reserves of Huanxi oilfield through horizontal well drilling

欢西油田薄层稠油估算地质储量800×10^4t，占稠油总储量的6．6％，由于油质稠、油层薄或受边底水的影响，利用直井开发无法实现经济有效开发。2007年以来，通过水平井开发技术研究，形成了一系列水平井开发薄层稠油的主要技术，可有效解决利用直井开发薄层稠油所遇到的各种难题，现场实施取得了较好的开发效果。

The estimated geological reserves of thin heavy oil in Huanxi oilfield is 800×10~4 t,accounting for 6.6%of the total reserves.Affected by edge and bottom water,good development effect can not be achieved by using straight wells. Therefore,the research on horizontal well drilling technology has been developed since 2007,which can solve various problems occurred in thin heavy oil development and proves a good effect in field application.