管柱工具图例吸附于井眼轨迹的纹理贴图方法

Texture Mapping Method with String Tool Figures Adsorbed on Well Trajectory

石油采油行业中,大多数油田井型是各种带有弯曲分支及鱼骨的类型。而管柱图是石油行业的重要图件。在管柱图绘制中,很多管柱工具图例内部有许多其他的点、线(即内部花纹)构造,在轨迹弧段处不容易处理。为改善管柱图绘制的视觉效果,针对目前在管柱图绘制过程中存在的问题,引入纹理映射的思想,将实际的管柱工具图例纹理按照一定的纹理贴图方法吸附到井眼轨迹上,提出了一种管柱工具图例吸附于井眼轨迹的纹理贴图方法。该方法能方便地使管柱工具图例在弯曲的弧段处沿着井眼轨迹的切向方向弯曲,实现了各种管柱工具图例间的无缝拼接。实验结果表明,与现在普遍采用的矢量绘图法相比,采用所提出方法绘制的管柱图可以实现无缝衔接,具有更好的视觉效果。

The majority of oil well types are the ones with diverse bending branches and various fish bones in the oil production industry. String chart is a most important map in petroleum industry,in which there are many other points and lines （or inner texture pattern） to construct and many string tool figures at the arc trajectories are not easy to deal with. In order to improve the visual effect of drawing string charts, aiming at the existing problems in string charts drawing, introducing idea of texture mapping into practical operations for ab- sorption of the legend on the well trajectory, a texture mapping method with string tool figures absorbed on the well trajectory has been put forward which is convenient to bend the string tool figure in arcs along the trajectory of the tangential direction to achieve seamless splicing between a variety of string tool figures. Experimental results show that compared with the widely used vector drawing method right now, the proposed method has achieved seamlessly drawing with better visual effects.