Hi-tech
By the early 1970s with Harold Owen going in the direction of explosive manufacturing, Marvin Gearhart had decided that he wanted to crack the lucrative open-hole logging market that was dominated by Schlumberger, Dresser-Atlas, and Welex. In 1972, Gearhart began development of a new series of open hole tools and computer system to analyze the findings. In only 14 months the system was completed and entered its test phase. The new Direct Digital Logging (DDL) system surpassed by leaps and bounds the current analog systems employed by its competition and went into service in 1975 creating large revenues for the company.
Read more about this topic: Gearhart