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油藏描述牵涉到对地质、岩石物性、地震和工程数据的量化、综合、压缩、分析。其目的在于从空间上了解井间不均匀性。传统描述井间不均匀性的地质途径是运用手工绘制或计算机生成的二维平面图和剖面图实现的。其结果利用三维分析解释技术可以得到大大改进。 三维油藏描述的数据输入要求与二维方法相同,而费用等于或常低于传统的二维方法。三维油藏描述的结果是一个三维油藏模型。用来交流这一三维油藏模型成果的语言是可视化,即,数字信息的可视图象。在模型范围内所有可能的测井、岩蕊信息都综合在这一三维模型中,但这些信息以彩色色块而不是测井曲线形式表示。三维油藏模型的完整性很大程度上依赖于地层格架。正确地解释地下油藏的地层格架是三维油藏建模过程中最困难、最需要创造力的一步。层序地层和地震地层学解释能为三油藏建模提供最佳地层格架。
Reservoir description involves the quantification, synthesis, compression and analysis of geology, petrophysics, seismic and engineering data. Its purpose is to understand spatially inhomogeneity. Traditionally, the geologic approach to describing cross-well inhomogeneities has been implemented using either hand-drawn or computer-generated 2D plans and profiles. The results can be greatly improved using 3D analytical interpretation techniques. The data input requirements of 3D reservoir description are the same as the two-dimensional method, while the cost is equal to or lower than the traditional two-dimensional method. The result of a 3D reservoir description is a 3D reservoir model. The language used to communicate the results of this 3D reservoir model is visualization, that is, a visual image of digital information. All possible log and core information within the model is integrated in this 3D model, but the information is presented in color patches rather than log. The integrity of the 3D reservoir model relies heavily on the formation framework. Correctly interpreting the stratigraphic framework of a subterranean reservoir is one of the most difficult and most creative steps in 3D reservoir modeling. Sequence stratigraphy and seismic stratigraphic interpretation can provide the best stratigraphic framework for the three reservoir modeling.