Study On Accumulation Law Of Huaqing Chang 9 Reservoir

In recent years,in Hua Qing Chang 9 group there are many high-production wells,but the fluid is water,which restricted this area to deep exploration.By studying on the geological characteristics of Chang 9 group and evaluating the reservoirs,choose the potential areas.With geological strata in the study area to establish stratigraphic correlation template.Set up the research area is ochronous stratigraphic framework,through core observation,the relationship between the rock electricity contrast,the strata,the sedimentary cycle,and detailed stratigraphic division and correlation.Combining macroscopic tectonic background,analysis the structure characteristics of the micro of the top of the Change9.In based on the analysis of the regional sedimentary background,combining previous research results,making full use of the logging data and the cores as well as the rich,the key research is the distribution of different sedimentary microfacies and sand body.With the log data and the core analysis data,analysis the main factors of affecting reservoir physical property and carry on comprehensive evaluating the reservoir,by levels understanding reservoir heterogeneity characteristics.Based on the accumulation elements,analysis the relationship between the oil source,the structure,the sedimentary,the sand body distribution and the reservoir characteristics and the regularity of accumulation of oil/gas accumulation.Based on the result aboved,and combined the exploration and production practice,the advantage blocks are building.The reservoir's development is controlled by northwest and southwest provenance,according to the test results,combined with the geological knowledge,the study area is divided into seven areas.By means of plane area chart and the increasing rate of resistance,the oil and water layer identification standard is established.According to the evaluation well,combining with the developed blocks,the unused potential area plane distribution,the logging interpretation,the reservoir evaluation,etc.,there are four areas that deepen the degree of geological knowledge,and improve the regional control,which provides the basis for regional production build.