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

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.