Study On Comprehensive Classification And Evaluation Method Of Reservoirs In Chaoyanggou Oilfield

It made a multi-level comprehensive analysis based on the previous studies: First, research from the reservoir causes, the type of reservoir evaluation of the impact of classification; the Second, from the development of deposition system and the types of reservoir; and the Third, conducts the research differently from the diagenesis to the reservoir space evolution influence, summarized the geological features of the Chaoyanggou oilfield.The development reservoir appraisal first needs to determine that the classified appraisal the parameter, through to the reservoir macroscopic characteristic, the microphysics characteristic and the crack careful research, the quota described the reservoir natural characteristic, the reservoir rock pore structure and the relationship between the throat and distribution , has promulgated the control penetration coefficient height microscopic hole structure essence, had indicated the hole structural feature is appraises the reservoir quality the intrinsic control factor. Also has analyzed the penetration coefficient from the oil layer physics angle to the oil deposit transfusion ability influence. In Chaoyanggou Oilfield, grows the massive tiny bedding seam and the stratification plane seam, they are main the transfusion role in the low seepage sandstone reservoir, although they are not the main reservoir spaces, but also plays the very important function to the reservoir research.From the influence reservoir's reservoir quality, the reservoir distribution, the fluid nature, the lothological characteristic, the crack grew five aspects to conduct the synthetic study, has selected eight appraisal parameters, through reservoir assessment method's optimal, optimal most could manifest the reservoir essence finally the characteristic and the reflection oil deposit most outstanding feature parameter takes the most superior quality synthetic evaluation target.synthesizes the above content, to studies the sub-area the reservoir to carry on the synthesis classification, and proposed the classified standard, the reservoir division is four ranks, from this obtained has faced the open drain oil field reservoir classification appraisal table, finally chose the typical sub-area to utilize this taxonomic approach, examined and consummates the taxonomic approach, provided the basis for the next step research work.