The green (environmentally friendly) project of mining oil and gas in the Western Sichuan area is based on the green low-carbon development strategy of the China Petrochemical Corporation, and it commits to form a complete set of technological developments in oil and gas extraction processes. The project focuses on technology innovation in three aspects: reuse of fracturing flow back fluid, reuse of drilling fluid, and configuration of fracturing fluid and drilling fluid by formation water. A series of technology innovations not only realize the green low-carbon strategy of the enterprise, but also play an important role in lowering cost and improving efficiency. In addition, the technology achieves remarkable social and economic benefits and inspires the ideas for industry technology innovation.