Research on Comprehensive Management of Low-Efficiency Oil Reservoir in An36 Block of Hexiwu Oilfield
The Hexiwu Oilfield is distributed north-east and south-west,consisting of over ten fault blocks,which is a typical complex oil and gas reservoir with multiple fault blocks.The reservoir has the characteristics of deep burial,low porosity,low permeability,low reservoir richness,high formation pressure,and high oil-gas ratio,which is a typical high-pressure low-permeability reservoir.In order to solve the low-efficiency production situation of the oilfield's various fault blocks and improve the fault block development level,the scheme takes the complex small fault block in the middle of the oilfield as the starting point,improves the injection and production well network,restores the formation pressure,and improves the water drive control degree;re-recognizes the reservoir type and conducts development technology policy research;at the same time,combines the logging re-verification and dynamic information to carry out inter-layer exploitation,and improves the utilization degree of the oil layer.
complex oil and gas reservoirshigh pressure and low permeabilityaterflooding control degree
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