LAVERSAB – Texas based Leader in MWD, EDR, Hazardous location Computers, & WITSML Software Applications Laversab design and manufacture oilfield systems for use in ATEX/IECEx Zone 1 and Zone 2 + UL/CSA Class 1 Division 1 and 2 locations. Laversab custom MWD surface systems, Electronic Drilling Recorders, Depth Trackers, and Hazloc computers are designed for use in extreme environments and used by major oilfield service providers across the world. Laversab custom software applications range from stand-alone EDR packages to WITSML-based data conversion, visualization, storage, and analysis.