基于GIS的油气藏多学科综合研究

油气藏的多学科综合研究必须解决多学科数据和成果的集成管理、合成显示和综合分析评价等问题。GIS（地理信息系统）是采集、存储、管理和分析空间信息及其相应属性信息的系统，可以兼顾许多各自独立而又彼此联系的信息。提出了基于GIS的油气藏多学科综合研究方法，即在统一的地理参照坐标系下，应用GIS存储和管理空间数据，应用图层叠加显示、专题图、三维可视化等方法实现多专业资料和成果图件的合成显示，应用矢量和栅格数据的空间叠加分析方法实现多学科数据及成果的综合定量分析。在苏北盆地金湖凹陷戴南组岩性油气藏的勘探中，应用此方法精细预测岩性圈闭和描述油气藏等，评价油气藏的发育区带、选择勘探工区，取得了较好的效果。实践表明，以GIS为基础平台，结合油气专业需求构建工作流程和软件平台，可以实现真正意义上的油气藏多学科互动综合研究。

Multiple-discipline research on hydrocarbon reservoirs based on Geographic Information System(GIS)

Multiple-discipline research on hydrocarbon reservoirs should be used for solving the integrated management, synthesized display, comprehensive analysis and evaluation of multiple-discipline data and achievements from multiple resources. GIS is a computer system that can collect, store, manage and analyze spatial data and their property information that are independent but interrelated, and offer information and decision-making support for resource planning, management and research. The authors put forward a scheme of multidiscipline research based on GIS with unified geographic coordinate; the storage and management of spatial data can be realized by using GIS, the data and achievement maps can be displayed synthetically by using the methods of fold display of graph layer, special topic graphs, 3D visualization, etc. The comprehensive and quantitative analysis of the multiple-discipline data and achievements can be realized by using space fold analysis of vector and grid data. The method has been used successfully in the exploration of lithologic reservoirs in Dainan Formation, Jinhu Sag, Subei Basin, for evaluating oil and gas accumulation zone, locating exploration area, finely predicting lithologic traps and describing reservoirs. Establishing the process and software platform on the bases of GIS and technical demands of oil and gas exploration can realize a mutiple-discipline comprehensive research in the true sense.