Reference

The geology of the Cuu Long Basin plays a significant role in the formation of hydrocarbon traps. The basin is known for its complex petroleum system, which includes multiple source rocks, reservoirs, seals, and traps. Most of the oil and gas production in the Cuu Long Basin is contributed from structural traps, which are becoming increasingly depleted after years of exploitation. The basin's geology includes fractured basement highs and basement highs, which are oil-prone and serve as reservoirs for hydrocarbons. The predominant trend of sediment deposition distribution is observed from the continental portion of the Dalat Zone towards the Cuu Long Basin, which influences the distribution of hydrocarbon traps. The basin is now considered to be mature, with a high probability that more than 50% of the total petroleum in the region has been discovered. For more detailed information, you can refer to various sources such as research papers and geological studies on the topic. (ResearchGate, ScienceDirect)