Well Logging Curve Digitize System Research

As the well-log information gained by down hole instrument, uphole equipment and other equipment, the borehole log mirrors the features of rock facies and depositional environment. The borehole log can forecast the ore mass distribution and the control of the spatial distribution rule of the laboratory experiments can be mainly used for such aspects as reservoir correlation, thick division, reservoir characteristic interpretation, and fine geologic description, etc.The progress of the oil exploration development can enhance the logging trace.But on the graph paper of the borehole log of the analog logging device, the amount is too much for its conservation and utilization. Therefore, it's necessary to set up the borehole log's data base to interchange the tracing patterns and the analysis of the appliance computers. The first premise of creating the well-log data base is the input computer of the hcurve diagram gained.The graph grammar's entry remains with the category infed.The so-called automatic input of chart paper means that the chart paper gets converted to image files for the computer input through scanners or video cameras and then the image files are necessarily disposed and identified for the final graphics files.For the moment, computers have achieved the aim of high speed, high output and miniaturization and their speed or capacity can suffice the demand for high speed arithmetic. Furthermore, the chart paper's automatic input is favorable for the unceasing birth of high-grade graphical input facilities, output units and display device. Another purpose of the research is the technical application of the Agent into the public share of the borehole log data in the oil field; the design is based on the control system of the Agent webbing borehole log records.The Agent technology was firstly produced by the American Professor M. Minsky. It was used to describe the hard ware, soft ware or other natural or artificial things with self adaptation and capacity of self-control so that the upsurge was started in the field of artificial intelligence grounded on Agent technology and system which develops into a new computation module. Agent is increasingly taken into account and its concept has been introduced by the researchers into every connection of the software development, the purpose being a team-up among the enhanced soft wares.The software development by this arrangement has the application program seen as soft ware Agents whose communication language exchanges messages. As the research subject resent years, the Agent technology's aim is to alter the conventional programming approaches with the Agent as the basic element featured with autonomous rights, social competences, responsibilities and operations . The Agent program design displaces the object-oriented program design. In the last few years,the speedy Agent studies bear fruits endlessly. However, the data base aimed at various information control becomes a new research area adopting the webbing share of the Agent. Another purpose of the research is the technical application of the Agent into the public share of the borehole log data in the oil field; the design is based on the control system of the Agent webbing borehole log records. The beta diagram into the computers is mainly the vector quantization that often manages the binarization on the grey-scale image. And from the binary image, there are two means of the curve vector quantization: one being the direct refinement on the raster image based on the point lattice and the other based on the binary image compressing the image data in accordance with the image pertinence to throw off the redundant quantities, i.e., the useful information of the images is stored into the data structure, the typicals are RLC (run length coding), LAG (line adjacency graph) and BAG (bump adjoint graph). The Agent is now in the stage of research and development. Though relevant bodies have internationally founded for the Agent standards such as the communication language KMQL, ACL or basic Agent structures, the adaptability of such standards needs further studies. And else, some international companies have developed the software products based on Agent that are short of perfect on the whole. There are three forms for the chart paper of the borehole log: photographic paper map, handed-drawing plotting paper map and blueprint. And the testing interface quantity by the borehole log can be spontaneous potential, spontaneous current, three direction finding, hole diameter, microelectrode and electrical resistivity, etc. The article takes the handed-drawing graph paper as its subject investigated for the issuesof non-planar's tracing, rectifying and the sharing of the curved line information.The borehole log is a special curved line different from that on the engineering drawings.And each line has its particular meaning. Therefore, the ultimate aim of its tracing and rectifying is to get a right line to set up the relevant information data base of the curved line and offer the media for the data inquiry. The data base memory of the curved line digitization has now been resolved and the tracing procedure of the control system's borehole log based on Agent logging trace data net has also been realized, i.e., the same node of the curve is chained with LAG node as the operand whose course is to find the next node of the nodes. The choice of the next node and the numbers of the lower gradation of the node relate intimately. If a certain node has its lower gradation as 1, its next node is easy to choose; if the lower gradation as 0 or its numbers bigger than 1, the next nodes are hard to choose. To increase the tracking speed and the accuracy, the data structure of the curved segment based on LAG should be set up according to the behavior of the borehole log and such data structure can nicely solve the cross line's tracing and the tracing of the anchoring point. With the increasing application of Agent in pratical field, the Agent should be required to feedback in time for immergency. Besides the behavior mechanism of the real-time deployment, the Agent needs the interactive social predictability among the automatic Agent. Because of the inscrutability of all the environmental changes when designed, the Agent is demanded to get more information about the environment and the problem solving.And the Agent behaviour should be justified to solve problems effectively. The borehole log data base is set up and the operation methods about the data updating and inquiry of the curved lines are provided. And the webbing executive system based on the Agent borehole log has been developed. There is no need for the users to concern the geographical position of the database servers of the curved lines and they can operate the data updating and inquiry work freely while screening the user's direct facing towards the data base operation, lowering the hardness of the data base manipulation.