Optimal Control Applied In Process Industry And Prospecting For Oil And Gas

Steam power system is an important part of the process industry, whose secure and steady operation is the foundation of security, stabilization and long period operation for the whole corporation. The design, operation and control of steam power system affect the effective utilization of energy and economic performance in the process industry. Therefore, the study on the design, operation and control is very important to direct the general optimization of steam power system.In the model mentioned above, the possible combination dimensions of the system will show exponential growth with the number of unit and periods, Usual algorithm cannot solve the problem effectively. In order to overcome this difficulty, the improved genetic algorithm was improved on many aspects and it was much more simple than before. Using this method to solve the multi-period MINLP problem, the optimal result could be achieved within reasonable time. The research is one of National Major Fundamental Research/Development Project of "Critical scientific problem of high efficiency and saving energy resources"(G20000263).This paper uses the theorems of force balance and substance balance to make stages analysis about transformation of internal pressures in deep-basin gas accumulation, in terms of the driving principles of piston movements which the deep-basin gas accumulation has, and builds a mathematical model about internal pressures in deep-basin gas accumulation and time. At last, using the practical geological datum of Turpan-Harmi Basin, the paper makes quantitative analysis for the first time and draws many curves, the comparison with reference [74] can manifest the model is right and available. Therefore, if we have much datum about pressures, we can get the state of deep-basin gas accumulation, this analysis can help to ascertain the type of natural gas accumulation, and can use the datum of pressures to forecast the distribution of deep-basin gas accumulation. The research is one of the "973" National Major Fundamental Research/Development Project of "Formation, enrichment and distribution prediction of oil and gas in superimposed basin of China"(G1999043308).