Low-cost shale oil and gas drilling and completion technologies used in the North America and the suggestions

In order to adapt to the environment of low oil price and improve the bene fi t of shale oil and gas development, the shale oil and gas producers take a series of measures to reduce the operation cost, increase single-well production and realize good economic bene fi t. In this paper, the development status of shale oil and gas in the North America was introduced, and the key low-cost drilling and completion technologies adopted to improve the economic bene fits of shale oil and gas development were analyzed, including efficient mobile rig, multiwell pad optimization design, drilling optimization design, completion optimization design, fracturing fluid recycling, integrated design and management optimization. Then, some suggestions on low-cost drilling and completion technology research were proposed based on the shale oil and gas development status and engineering technical difficulties in China. It is necessary to focus on researching these key technologies to develop low-cost shale oil and gas drilling and completion technologies which are suitable in China.It is of great significance to the economic and efficient development of shale oil and gas