Keywords heavy oils;catalytic aquathermolysis;transition metal catalyst;emulsification;viscosity reduction;downhole upgrading;heavy oil recovery;steam huff-puff wells;

• 稠油;催化水热裂解;过渡金属催化剂;乳化;降黏;改质;稠油开采;蒸汽吞吐井;胜利孤东油田;