Reserch And Application Of Delicate Separate Layer Water Injection Technology In Jilin Oilfield

Fuyu Oilfield is entering the extra-high water cut periods.Because of the shielding effects of the interface structure and mudstone interlayer,the high permeability reservoir is waterflooding with invalid cycle,but the existence of lithology,remaining oil enrichment area is unused.In order to improve the subdivision water injection development level,we research and develop long rubber tubing packer,the length is up to 0.5-2 meters,it can effectively block holes or thin interlayers.Then we can use the interface shielding layer structure,to achieve high water flooded parts of blocking layer period,strengthen water flooded parts of low,slow to contradictory layer;due to the fracturing caused by the vertical extension cannot injection layer internal fine implementation of the whole sealing heavy firing technology,further reduce and control the contradictions between layers.