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نتیجه جستجو - Intelligent optimisation algorithm

تعداد مقالات یافته شده: 1
ردیف عنوان نوع
1 Intelligent inversion method for pre-stack seismic big data based on MapReduce
روش معکوس هوشمند برای داده های بزرگ لرزه ای قبل از پشته بر اساس MapReduce-2018
Seismic exploration is a method of oil exploration that uses seismic information; that is, according to the inversion of seismic information, the useful information of the reservoir parameters can be obtained to carry out exploration effectively. Pre-stack data are characterised by a large amount of data, abundant information, and so on, and according to its inversion, the abundant information of the reservoir parameters can be obtained. Owing to the large amount of pre-stack seismic data, existing single-machine environments have not been able to meet the computational needs of the huge amount of data; thus, the development of a method with a high efficiency and the speed to solve the inversion problem of pre-stack seismic data is urgently needed. The optimisation of the elastic parameters by using a genetic algorithm easily falls into a local optimum, which results in a non-obvious inversion effect, especially for the optimisation effect of the density. Therefore, an intelligent optimisation al gorithm is proposed in this paper and used for the elastic parameter inversion of pre-stack seismic data. This algorithm improves the population initialisation strategy by using the Gardner formula and the genetic operation of the algorithm, and the improved algorithm obtains better inversion results when carrying out a model test with logging data. All of the elastic parameters obtained by inversion and the logging curve of theoretical model are fitted well, which effectively improves the inversion precision of the density. This algorithm was implemented with a MapReduce model to solve the seismic big data inversion problem. The experimental results show that the parallel model can effectively reduce the running time of the algorithm.
Keywords: Intelligent optimisation algorithm ، Pre-stack seismic data ، Elastic parameter inversion ، MapReduce
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بازدید امروز: 10844 :::::::: بازدید دیروز: 0 :::::::: بازدید کل: 10844 :::::::: افراد آنلاین: 67