The researchers studied different types of sediment in a specific area to find out where good oil and gas reservoirs might be. They looked at things like rock samples, sizes of particles, and how porous the rocks were. They found that the best reservoirs are in certain types of sandy rocks in underwater channels and fan delta areas. These areas have strong water flow and are stable. They also found that other good reservoirs are in braided channels with sandy rocks. The stable ground in the area controls where the best reservoirs are. This study helps predict where to look for oil and gas.