Currently, there have been more than 20 low permeability oilfields have comeunder development in Daqing peripheral areas. Because of low reserves, low permeability and lowreservoir productivity, the development way fo...Currently, there have been more than 20 low permeability oilfields have comeunder development in Daqing peripheral areas. Because of low reserves, low permeability and lowreservoir productivity, the development way for such kinds of oilfields must depend on the latesttechnology advance. The first disadvantage is the poor crude oil properties, which have high pourpoint, high viscosity, high paraffin, low G/O ratio, correspondingly making the treatment moredifficult. The second disadvantage is the poor development environment. Daqing oilfield is locatedin the high latitude, with a long freezing time. The lowest average monthly temperature is up to-19.9℃, and the extreme lowest temperature up to -39.3℃. On the other hand, low G/O ratio resultin the lack of fuel for crude oil gathering and transportation. And generally in these oilfields,block areas are small, and the developing blocks scatter about, far away from the old surfacefacility system, such as water supply system, electrical supply system, and road, telecommunication.展开更多
文摘Currently, there have been more than 20 low permeability oilfields have comeunder development in Daqing peripheral areas. Because of low reserves, low permeability and lowreservoir productivity, the development way for such kinds of oilfields must depend on the latesttechnology advance. The first disadvantage is the poor crude oil properties, which have high pourpoint, high viscosity, high paraffin, low G/O ratio, correspondingly making the treatment moredifficult. The second disadvantage is the poor development environment. Daqing oilfield is locatedin the high latitude, with a long freezing time. The lowest average monthly temperature is up to-19.9℃, and the extreme lowest temperature up to -39.3℃. On the other hand, low G/O ratio resultin the lack of fuel for crude oil gathering and transportation. And generally in these oilfields,block areas are small, and the developing blocks scatter about, far away from the old surfacefacility system, such as water supply system, electrical supply system, and road, telecommunication.
