| GIS technology has promoted the information revolution of geology in China.Geological drilling data are basic and public geological data.Since the founding of the People's Republic of China,massive drilling data have been collected,but most of them are stored in the form of paper in various grass-roots units,resulting in inconvenient use,low utilization efficiency and undeveloped value of the drilling data etc.Drilling data are characterized by multi-source heterogeneity and spatial distribution,which determine that GIS technology plays an important role in the integration,management and service of drilling data.Based on GIS,the technology,methods and applications in drilling database construction are studied and analyzed in this paper,to solve the problems of integrated management and convenient use of drilling data.The main research contents and results of this paper are as follows:1.Taking geological drilling data as the research object,the classification rules,data standardization and constraint rules of drilling data are analyzed and determined,and drilling data models and space data layer division are studied and designed by using structured system design methods for further design of drilling database.2.The data organization methods,integration methods and technologies of drilling data are studied,and the National Geological Drilling Database is established for the first time,to realize unified management of drilling data nationwide.The technical problems in the massive drilling data convergence are solved.3.The drilling data quality control system is formed,which can be used in drilling data acquisition and aggregation in the drilling database construction process to ensure the quality of drilling data.4.The geological drilling data management service system based on a hybrid structure of C/S and B/S is developed,including the collection,management,mapping and service of the geological drilling data.And it's being used all over the country.The above results have effectively solved the problems of efficient management and sharing of drilling data.5.From the perspective of serving the geological work deployment of government departments,delineating the spatial extent of drilling is put forward by systematically analyzing and studying the degree of drilling work in China.From the perspective of serving the mineral resources potential prediction of enterprises and institutions,taking the Bilihe Gold Mine as an example,a geological model of themining area is established,and some gold prospecting areas for metallogenic prospecting are proposed.They provide a model for the popularization and application of geological drilling database.At the same time,the availability and reliability of the system are verified. |
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