Abstract:The key to hydrocarbon reservoir description using mufticategory discriminant lies in how to determine standard discriminant model and how to guarantee the stability in mufti-category discriminant course. To cope with the above problem,we make nonlinear mapping to examine discriminant-model effectiveness so as to guarantee a correct model,and take more digits after the decimal point of data to elimipate the unstability in mufti-category discriminant course. The method,named "multivariate statistical analysis system (MSAS)",has been fully tested and perfected on workstation. We applied the softwares to comprehensive hydrocarbon reservoir description of No.1 and 2 objective intervals in the Weibei C321-borehole area in Shengli Oil Field,bringing satisfactory result.
符基昕, 卢春喜, 焦湘恒. 在油气藏描述中判别模型的有效性及判别结果的稳定性[J]. 石油地球物理勘探, 1996, 31(5): 660-676.
Fu Jixin, Lu Chunxi, Jiao Xiangheng. Effectiveness stability of discriminant result in hydrocarbon reservoir of discriminant model and description. OGP, 1996, 31(5): 660-676.