I am doing pillar grid operation. Let me know in pillar grid every node of the grid has a pillar, when a fault pass through it, it is called fault pillar. Now fault pillar can be vertical or non-vertical. Let me know apart from fault pillar other pillars are always vertical? I mean to say that the (x,y) of the grid node should be same for all top, base and mid skeleton grid of the pillar grid?
Thanks & regards,
In pillar-grids not all pillars need to have the same X,Y coordinate. Pillars can (and usually are) alligned along the (nearest) KEY-pillars. The KEY-pillars are the faults sticks, which can have 2, 3 or 5 shapepoints. You can thus have vertical, subvertical, listric and fully curved KEY-Pillars.
During pillar gridding the pillars are fit along the KEY-pillars and your 3D grid is thus 'structured' along your fault pillars. Inbetween KEY-pillars the pillars are distributed according to the cell size you enter and you thus have a lot more pillars opposed to KEY-pillars.
hope this explains it a bit.