The objective of this project was to design a drill pipe deployed 3C borehole seismic array that is capable of deploying 1,000 3C sensors, i.e., 3,000 channels, using novel broad band fiber optic geophones that can be deployed to at least 200C (392F) and 30,000 psig to a drilled depth of 30,000 feet. The objectives include manufacturing, testing, and evaluating the performance of the 100 level 3C Prototype System using the recorded test data sets.