Research On The Framework For Well Log Digitizing And Well-logging Data Reapplications

By right of well-logging,this paper set up a new application mode,which look on the history data of current compute environment.This paper researched the SPCTR arithmetic by the chraracteristic of much kinds of well-logging graph,and then completed well log digitizing precisely and rapidly.Under the more flexible ^ steady and consistent condition.the data manipulation framework of well curve's general information based on software Agent technology applied the guarantee for the distributed curve data reapplication.The research of curve data reapplication expressed the reasibility of the application framework.The arithmetic of SPCTR(Scanning, Preprocessing, Compressing, Tracing, and Rectifying) solved many problems that the traditional curve digital technology can't achieve,such as the excessive linetype^ the complex relation between lines> many-scale and artifical error.The aim of preprocessing is the decrease of gray,blue and noise on map.which supplied the good guarantee for upper the Compressing,Tracing,and Rectifying of curve. With the analysis of the gray-vertical-chart technology and the characteristics and rules of grid information,this paper presented the Preprocessing of well-logging based on the grid information.,LAG was used to compress well-logging data during Compressing,which has the merits of relatively high compressed efficiency,quite simple algorithm and the extremely succinct code. The curve-segment can further compress the curve data,and solve the problems of the crossing lines and adhesive points at the time of Tracing.According to the characteristics of the well-logging graph,the Correcting arithmetic based on coordinate gridding was proposed, which rectified perfectly the distortion of curve graph.According to the variety and distributing of the curve information.the data manipulation mode of well curve's general information adopted the three-layer system structure based on Agent.The three-layer comprised Application Server Layer(User Agent) ? Middle Layer(Middle Agent)and Data Server Layer(Database Agent and Data File Agent).The communication alternation and cooperation between layers was achieved with the Agent Communication Language(ACL)and the system information data-base,which not only completed the intelligent operation of curve data,and also showed the merits of Agent in this system.This paper developed the two application case about curve reapplication.The case had been applied to some oil factory of Daqing, the performance was steady and the expect purpose has attained.This paper includes six chapters.The first chapter mainly states the current situations and necessary reasons of this study,and also introduces its tasks and difficulties in brief.The second one briefly describes the constitute of the data manipulation framework of well curve's general information, introduces the system structure and modules on the whole.The third one is the realization of the previous chapter, discusses particularly the design and realization of all system module based on Agent.Chapter four firstly presented the arithmetic of grid pick-up and the graph preprocessing.and then mainly discusses the Compressing and Tracing of SPCTR algorithm, describes in detail the realiaztion of the LAG data structure and curve-segment ,and then the select of this segment during curve tracing.The fifth introduces the research case about the well curve data reapplication.The last one includes system realization and work summary. The basic constitutes of the whole system were published in this chapter.Summary of the study work followed by future study object are the end of this thesis.