Figure 4D. "Necklace" plot for Wide-Azimuth Design D. Design D has better offset sampling than the other three designs, but it is also much higher fold. It has 72 individual offset traces between 0 and 11,000 feet.

Click to view comparison of necklace plots for narrow-azimuth design A (Figure 4A) and for wide-azimuth designs B, C, and D (Figures 4B, 4C, and 4D).