Figure 1. Offshore drilling platform with 58 existing wellbores (a subset shown in brown) and location of new well being planned (blue).
Visualizing Oil and Gas Wellpath Collision Avoidance
Figure 2. Several types of information are automatically calculated, displayed, and easily evaluated when clearance calculation results are displayed in 3D: (1) The minimum allowable separation distance (MASD) is displayed as tubes around each offset well; (2) the pass/fail of the ACR is shown by coloring of the tubes (green = pass; red (not shown) = fail); (3) queryable available-space symbols (“dumbbells”) are automatically displayed in regions with less than 200’/60m between the reference and the MASD tubes; and (4) the symbols’ color and shape (green at 100’/30m; yellow at 50’/15m; dark red at 0’/m; and spheres for diverging; hourglass for converging; diamonds at failures) allow for quick assessment of possible “problem” areas while also highlighting areas for alternatives plans.
Figure 3. Ladder plot of Reference MD versus Separation Ratio for the reference wellpath and a selection of offset wells.
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Data used with permission of owner.