Two new types of sandbars in channels of the modern Ganjiang Delta, Poyang Lake, China: Depositional characteristics and origin

Discovery of BPB and MPB has important implications in finding remaining oil in oilfields. Previously, geologists considered point bars on convex bank of meandering channels or longitudinal bars and transverse bars in the middle of braided channels as favorable locations for finding remaining oil. Our study shows such locations as branching points and merging points of channels are also significant because BPB and MPB develop at these locations. Remaining oil has been found at branching points of channels in Pubei Oilfield, Songliao Basin, Northeast China.