Abstract: In response to the requirements for high-quality new energy development during the 15th Five-Year Plan period, the green transition of oilfields urgently needs to overcome the dual bottlenecks of insufficient clean energy consumption and low system efficiency caused by the decoupling of energy supply and demand. Taking a certain operation area of Changqing Oilfield as the research target, a four-stage source-grid-load-storage collaborative optimization technical system featuring “diagnosis-modeling-dispatching-verification” is established, and integrated research on rod pumping efficiency improvement, flexible load regulation and clean power accommodation is systematically conducted. Through precise diagnosis of energy consumption loss pathways, the research implements a systematic restructuring centered on distributed photovoltaics, with intelligent intermittent production as a load-regulation measure, energy storage as the key to temporal balance, achieving deep synergy between new energy integration and production efficiency improvement. Practice shows that this strategy effectively promotes the deep integration of energy supply and consumption, realizing simultaneous improvement in clean power utilization and mechanical production system efficiency. It provides a replicable pathway for system restructuring to address the supply-demand decoupling challenge under high penetration of new energy and to advance low-carbon production, offering important demonstrative value for promoting green, low-carbon, and high-quality development in the oil and gas industry.