基于多源信息进行地质导向的三维可视化环境的建立
发布时间：2018-08-13 10:47
【摘要】：由于地质条件复杂多变,很多钻井数据都是不精确的、不确定的、非数值化的。传统数据分析产生的单维数据既片面又孤立,并且很难建立相邻两井间信息的联系、联想。基于多源信息的三维可视化技术在地质导向项目中的综合应用,不仅可以为油田生产提供先进的可视化辅助手段,而且对油田数字化建设具有重要意义。在对国内外相关资料分析的基础上,首先对多源信息地质导向的信息源进行了分析,而且对多源信息预处理的方法进行了论述,剔除冗余信息。然后对空间插值方法在横向和纵向上进行了对比优选,优选出三次样条插值方法为建立空间几何模型的方法;对地质导向中涉及的工程参数和物性参数进行了相关计算,为后续建模打下基础;根据现场数据建立了地质导向三维可视化环境,沿井眼轨迹抽取相关属性。使用D-S证据理论对模型进行修正,实时更新模型。最后是对三维环境的操作,如对环境的旋转、放缩以及剖切等操作以及三维可视化环境在地质导向上的应用。结果表明,利用本文建立的三维可视化环境可以对地质导向过程进行实时监控,及时调整、操作等,对现场指导钻井起到了积极的作用。
[Abstract]:Because of the complex geological conditions, many drilling data are imprecise, uncertain and non-numerical. The single dimensional data generated by traditional data analysis is one-sided and isolated, and it is difficult to establish the connection of information between adjacent wells. The comprehensive application of 3D visualization technology based on multi-source information in geological oriented projects can not only provide advanced visual auxiliary means for oilfield production, but also play an important role in the construction of oil field digitization. Based on the analysis of related data at home and abroad, this paper first analyzes the geological oriented information sources of multi-source information, and discusses the preprocessing method of multi-source information to eliminate redundant information. Then, the spatial interpolation method is compared in horizontal and vertical, the cubic spline interpolation method is selected as the method of establishing spatial geometric model, and the engineering and physical parameters involved in geological guidance are calculated. Based on the field data, a geological oriented 3D visualization environment is established, and relevant attributes are extracted along the borehole trajectory. D-S evidence theory is used to modify the model and update the model in real time. Finally, the operation of 3D environment, such as environment rotation, scaling and cutting, and the application of 3D visual environment in geological guidance are discussed. The results show that the 3D visualization environment established in this paper can monitor, adjust and operate the geological guidance process in real time, which plays an active role in guiding drilling in the field.
【学位授予单位】：西安石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P628.3;TE21
本文编号：2180742
[Abstract]:Because of the complex geological conditions, many drilling data are imprecise, uncertain and non-numerical. The single dimensional data generated by traditional data analysis is one-sided and isolated, and it is difficult to establish the connection of information between adjacent wells. The comprehensive application of 3D visualization technology based on multi-source information in geological oriented projects can not only provide advanced visual auxiliary means for oilfield production, but also play an important role in the construction of oil field digitization. Based on the analysis of related data at home and abroad, this paper first analyzes the geological oriented information sources of multi-source information, and discusses the preprocessing method of multi-source information to eliminate redundant information. Then, the spatial interpolation method is compared in horizontal and vertical, the cubic spline interpolation method is selected as the method of establishing spatial geometric model, and the engineering and physical parameters involved in geological guidance are calculated. Based on the field data, a geological oriented 3D visualization environment is established, and relevant attributes are extracted along the borehole trajectory. D-S evidence theory is used to modify the model and update the model in real time. Finally, the operation of 3D environment, such as environment rotation, scaling and cutting, and the application of 3D visual environment in geological guidance are discussed. The results show that the 3D visualization environment established in this paper can monitor, adjust and operate the geological guidance process in real time, which plays an active role in guiding drilling in the field.
【学位授予单位】：西安石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P628.3;TE21
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