Analysis On Reservoirs Features And Development Plan In Block Aer 29 Of Aer Oilfield

The Aer 29 fault block is a newly discovered oil-bearing block in the Aer oilfield.The structure is multi-phased.The stratum erosion and sedimentary facies are intertwined.The reservoir is near source and rapidly accumulating.The lateral variation is large,and the interlayer heterogeneity is strong.The reservoir It is difficult to effectively develop stable production.The paper uses core observation,analysis and analysis data,single well phase analysis,sand body distribution,etc.to determine the upper part of the Aer-1 block,the sub-facies of the fan delta plain,the leading margin subfacies and the front fan delta subfacies.The dissolution of the reservoir layer is the primary pore,the fracture is not developed,and it belongs to the low porosity ultra-low permeability reservoir.When the permeability is less than 10.0×10^-3?m²,the oil displacement efficiency increases rapidly with the increase of permeability.Through the reservoir numerical simulation combined with reservoir engineering research and development dynamic analysis,the paper determines the rational development technology policy of the Aer 29 block reservoir,adopts a set of development layer system,adopts 250 m well square pit network or 300 m well triangle well.Net,water injection development.The Aer 29 fault block reservoir is sensitive to strong sensitivity,medium to strong water sensitivity,weak acid sensitivity,moderately strong alkali sensitivity,medium salt sensitivity.In the water injection production process,the water quality and injection rate of the injected water should be strictly controlled.Through the research of reservoir and development technology policy,a reasonable development plan was established.The III oil group was produced in the Aer 29-3 and 29-6well areas,and the II oil group was produced in the other well areas.The maximum wellhead pressure of the designed injection well was 16 MPa.Due to the poor physical properties of the Aer 29 fault block,it is recommended that the production wells be produced by fracturing and production.