Study On Evaluation Method Of Well Logging Wells In The Funing Formation Of Funing Formation In Gaoyou Depression, Subei Basin

Consolidated sandstone reservoir as a kind of unconventional oil and gas resources, has become the focus of regional research. Compared with the consolidated gas reservoirs, consolidated oil sandstone reservoirs have some good physical properties. Logging response characteristics of consolidated sandstone reservoirs was relatively insignificant, therefore it is necessary to study comprehensive evaluation of the oil-water layer of consolidated sandstone reservoir combining logging with mud logging data, establish a set of logging method, and provide better service for oil reservoir exploration and development.On the basis of geological knowledge, using the imaging logging data scaled by the core data, summarize the well logging response characteristics of different section reservoirs, and establish the logging identification model. Inaddition, identify reservoirs by Conventional logging, For the reservoir of obviously poor characteristics by conventional logging, we should be combined logging data and mud logging data to integrated identification of the reservoir.Based on the pressure of mercury, NMR, water film thickness and other experimental data, conventional logging, and dynamic production data, the paper determine the parameters lower limit and the electrical parameters lower limit, establish the standard of effectiveness evaluation.Based on porosity,permeability,saturation analysis data and electrical test data under different temperature and pressure conditions of rock sample, carried out the core scale logging, established calculation model of logging petrophysical parameters.For characteristics of dense reservoirs, poor physical properties, we had taken the Funing group reservoir as an example, combined with gas measurement, geochemical and quantification of fluorescence three kinds of logging methods and based on the characteristics of logging response, analysised features of spectrum response and found the plate method that be adapted to the comprehensive evaluation of oil-water layers research. Based on the comprehensive evaluation, we have done actual application analysis, take example of the logging shows bad but mud logging reflect good and the one of both of them are good, it is found that the results of this evaluation method are in good agreement with the testing data.The completion of this thesis not only provides a feasible method of well with mud logging identification and effectiveness evaluation for Consolidated sandstone reservoir, but also gave a more reliable basis from logging interpretation for the next step exploration.