三维可视化技术在钻井地质设计中的应用

钻井地质设计的科学性、准确性和可操作性的高低，直接影响钻井工程的质量，也决定了整体钻探工作的成败。随着计算机三维图像技术的发展，在钻井地质设计中，利用Earth Vision软件可以建立工区三维地质构造模型、砂体模型及井身轨迹空间展布模型等三维数据体，利用三维地质数据体，设计人员可全方位地分析工区地质构造、掌握地质构造特征、对比地层层位、预测地层压力、合理设计钻井液密度。井身轨迹的可视化，为地质设计中进行防碰提示、防斜预警及修改、补充地质设计提供了重要参考依据。

Aplication of 3-D visualization technique in drilling geological design

The level of drilling geological design's scientificalness, accuracy and menuverability,directly affects the quality of drilling engineering,also decides the success or failure of the whole drilling operation.Along with the development of computer 3-D image technique,in the aspect of drilling geo- logical design,3-D data volumes,such as 3-D geological structural model in the working area,sandbody model,well bore track in space distribution etc.can be set up with Earth Vision software.Using the 3-D geological data vol- umes,the designers can analyze working area's geological structure in an all-round way,master geologic structural features,correlate stratum horizons,predict formation pressure and design drilling fluid density reasonably.The well bore track's visualization provides important reference bases for the hint of guarding against collision during geo- logic design,early inclination warning and modifying and supplementing geological design.