A New Method of Calculating the Water Saturation with Log Data
Introduces a new meothod of calculating the formation water-saturation with logging parameters. Based on non-linear theory, developed is a highly applicable water-saturation model for shaly sand formation, with which the determination of water-saturation parameters are directely or indirectely gained by logging method with little human experience interference ,little experiential values or core laboratory testing pattern, therefore, it is more independent and more applicable, and has simplified the S w calculation, especially for new exploration area.
In the past 19 years,while China's urbanization was fast-developing,a series of problems related to urbanization were there upon production.In this paper,based on spectrum characteristic of knowledge method,the thematic information of three periods of LUCC were extracted from Landsat TM,ETM + and CBERS-2.Combing with the GIS technology,the land-use transfer matrix from 1987 to 2006 were obtained.Besides,the LUCC models were applied to analyze the characteristic of land use change from 1987 to 2006.Based on the land-use change map and land-use transfer matrix,spatial dynamic characteristic and land-use conversion of the study area were analyzed.The research could provide suggestions for land management and making policy for local government.