The Research On Large-scale Anisotropy Water Flooding Physical Simulation System

As the economic developed rapidly, China's economic is becoming depended on oil more and more seriously, the efficiency of the oil-drive technology is becoming more and more essential. To the oil workers, simulate the water flooding process in the laboratory and find some laws about oil movement in the water flooding, then use these laws to guide the actual oil exploitation, which is a effective way to prompt the oil exploitation efficiencyAs the relationship between the resistance and the water saturation, just it could work out the resistance rate by measuring the resistance value. The subject is based on the SAMSUNG company ARM7 S3C44B0x. it Designed a data collection system, used to measure the water saturation of water flooding simulation on large-scale sandstone in the laboratory. This paper described the system, including the hardware and software design part in detail.Use the four-probe method to measure the resistance, which is more scientific. In order to be able to measure more accurately about the value of resistance, the paper used eight stalls adjustable constant current source, given the automatic selection process stalls in the software and hardware design methods and the principles; The paper also introduced the 512 measurement strobe circuit design, design innovation on the multi-channels makes the measurement accurate and reliable.It also presented the design method of the external memory and expansion circuit interface, taking ARM as the core. And described the software design methods and processes in the ADS compiler environment, which including the compiler settings, boot loader transplantation, the process of debugging and Flash download. Also in this paper, a PC data acquisition system to accept data sent by the ARM is introduced which is program in the VB language.Finally Based on the above data collection system to collect the data and model the module with the radial-based network, the modeling method is proposed. Analysis of the results of the modeling, and then made a Contrast of the forecast results between the traditional BP network model and RBF. By comparing the results, we can arrive at the conclusion that used RBF to model is Feasible. Finally, analyze the profile of three-dimensional model. Draw the two-dimensional map about the water saturation distribution, which reflected the water distribution situation of the certain profile in the water flooding process in certain time.