Application Of Multi Layer And Multi-level Buffer Technology In Log Plotting And Editting

Well Logging almost runs through the whole process of exploration and development in petroleum industry.With the rapid development of logging technology,logging data types are getting richer,data forms more and more diversified and the requirements for software wider and higher.Thus,centered on the principle of multi-layer and multi-buffer technology,this paper mainly discussed the research and implementation of logging display and interactions,which mainly includes the following:1.Design of 2D layer model structure based on the principle of multi-layer and multi-buffer technology.2D layer model structure can function as a plotter,a buffer and a manager of2 D graphics,while an ordinary layer is used for plotting,a set of layers for management and buffer layer for reducing the number of calls of refresh frequency.Buffer layer can improve display efficiency and optimize the experience of interactive editing.It works the best when dealing with large data plotting.2.Design of log layer structure based on 2D layer model.Layer in log track is mainly used for plotting of log data,such as log curves,tops,lithology,fluid and geologic age etc.And Plotting of both vertical well and deviated well is supported.Well layer,track layer and well manager layer manage refreshing,activation and hiding of layers in log track.The size of buffer layer is determined by buffer contents.And different content of buffer is implemented according to different position of insertion.3.Interactive editing based on log layer design.Log layer is located by traversing the tree structure of log layers.Because of buffer layer,interactive editing can be performed without refreshing log data.Auxiliary lines such as elastic line are plotted on auxiliary layer.Design pattern of abstract factory is utilized for saving and opening sessions and templates,which ultimately enhances customer experience.Finally,supported by Geo East integrated seismic data processing and interpretation system research and development project,a logging software with diversified display of log data and friendly interactive editing is achieved,which further enhances the application performance of Geo East system,satisfies the increased demands of petroleum exploration,and improves the quality and market competitiveness of Geo East Well Logging significantly.