Yongle Oilfield Yuan 23 Block Preliminary Development Scheme

To 23 source putaohua reservoir as the research object, by logging data and to develop dynamic statistical analysis of the data of yongle oilfield, putaohua reservoir source 23 from macroscopical to microcosmic, from qualitative to quantitative are studied.Yongle oilfield source 23 putaohua reservoir sedimentary facies for delta front and phase, and developed block contrast, the main development putaohua reservoir PI2, 4 three little layer, the main reservoir microfacies for front thin layer mat shape sand. Forecast in average single well drilling 4.0 m, average of sandstone in single well drilling effective thickness 2.3 m. The major reservoirs PI2,PI3,PI4 ,PI2 layer, 0.6 m, PI3 layer 1.3, PI4 layer 0.4 m. The grapes flowers with sandstone reservoir thickness of single piece distribution, the thinner characteristics. In view of development, development way reason hotwater this block way by station airtight gathering and transportation drilling.On the basis of analysis of characteristics of Ethan review well productivity 23 block not fracturing source oil production Wells by 0.7 t/m.d strength. Analysis the source and block fracturing well recovery intensity can put 1.0 t/m.d. So this block production Wells fracturing choice 30%, oil intensity can achieve 0.8 t/d.m.This block of evaluation indicators -- the internal rate of return, after-tax investment capital are higher than the industry standard. Sensitivity analysis look, from this project has a strong anti-risk ability.Economic assessment of all feasible. Through reservoir of yongle oilfield, further understanding of the yongle oilfield reservoir geological and percolation mechanism features, such as project designs the development of daqing similar reservoir development has certain directive significance.