3D visualization research of well trajectory on comprehensive logging instrument

This paper used a 3D visualization technology to realize 3D description of underground geological environment and the well trajectory state in comprehensive logging instrument. Using VC ++ 6.0 and OPENGL graphics interface as a development platform, multilayer DEM was constructed through the Delaunay triangulations TIN generation after the linear and bilinear inserted. This model realized the real-time display, analyze and explain the strata condition, the well trajectory etc. In this system, we can observe and analysis 3 dimensional geologic body cutted from any point of view, we can also operate the whole three dimensional geologic body from any Angle.