Earth and Planetary Sciences
7 years ago

Ancient Delta Sandbodies Unveil New Reservoir Targets for Future Exploration

Petroleum Exploration and Development
Genetic types and sedimentary model of sandbodies in a shallow-water delta: A case study of the first Member of Cretaceous Yaojia Formation in Qian'an area, south of Songliao Basin, NE China
Li Zhang, Zhidong Bao, Yan-Bo Lin, Yuming Chen, Xiaohai Lin, Luxing Dou, Bin Kong

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The researchers studied sandbodies in a shallow-water delta in NE China. They analyzed different types of sandbodies in the delta plain and front, and found that distributary channels and mouth bars were key features. The delta evolved over time, with distributary channels decreasing in size and mouth bars becoming more prominent. The best reservoir targets for future exploration are point bar and active channel sandbodies in the main distributary channels.