Under the “Dual Carbon” goals

achieving a green and low-carbon transformation in offshore oil and gas has become a significant challenge for enterprises. Based on an analysis of the current status of low-carbon development in the domestic and international oil and gas industries

and considering the characteristics of offshore oil and gas development in China

this study first examines the main measures and technologies adopted for green and low-carbon transformation in recent years from three aspects: establishing standards and source intensity analysis to strengthen source control

implementing clean energy substitution and energy efficiency improvement for process management

and end-of-pipe management through CO₂ geological storage

CO₂-EOR（Enhanced Oil Recovery）

and CO₂ hydrate storage. The emissions reduction effectiveness of various low-carbon technologies is clarified. Secondly

by analyzing the development level and roadmap of each technology

the study forecasts emissions reduction contributions of source carbon control

process management

and end-of-pipe storage technologies

and explores a low-carbon transformation pathway for offshore oil and gas to achieve carbon neutrality by 2050. Finally

the study proposes future directions for low-carbon development in offshore oil and gas

including collaboration between marine oil and gas and new energy

construction of new offshore oil and gas power systems

digital and intelligent offshore oil and gas development

large-scale offshore CCUS（Carbon Capture

Utilization

and Storage）

and marine carbon sinks. The findings can serve as a reference for the low-carbon development pathway of offshore oil and gas and provide insights for the green and low-carbon transformation of energy enterprises.