IODP Expedition 344: Costa Rica Seismogenesis Project (CRISP-A2)
Figure 4

Logging data showing the inferred base depth of the 10¾ inch casing string in Hole U1380C.  The caliper log measured a constant hole diameter of ~10 inch showing that the wireline tool string was inside the casing, and the spikes in density and natural gamma ray measurements mark casing joints spaced every ~14 m.