His core knowledge was long honed out through years of persistent lab operations. Since employed by King Saud University, Geology Dept. in 1988 Mushabbab was tasked with a wide spectrum of lab tasks like Thin Section Preparation, Rock Cutting, and Microphotography. When retained in 1997 by CPT, KFUPM he furthered his lab passion by fulfilling and supervising numerous CPG research support assignments and other instrumental tasks related.

Since Sept. 21, 1997 Al Ghamdi has been assuming the role of research assistant and now is handling several tasks of projects funded by oil companies for geological analysis of surface and subsurface rock samples for different reservoirs, including thin section preparation for rock samples and more than 18,000 thin sections for Saudi Aramco and other major oil companies. His scope of work extends to sample cleansing, lab handling, field and office land survey, operating and supervising machines e.g. spectral ptrothin, multivolume pycnometer and mercury porosimeter.