Progress in Fracturing and Displacement Technology

This paper summarizes the exploration and development process of low-permeability tight reservoirs in major oilfields in China, and divides the development of fracturing and flooding technology of low-permeability tight reservoirs in domestic oilfields into four stages: matrix seepage and oil production, fracture matrix dynamic seepage oil production, fracture network fracturing storage and seepage oil production, and fracturing flooding oil simmering and oil production. At the same time, six aspects of fracturing and displacement technology are clarified: (1) volumetric fracturing technology; (2) Rupture pressure water injection technology; (3) Continuous large-displacement water injection technology; (4) Injection of a large amount of prepositioning technology; (5) Seepage and suction replacement technology of stewed wells; (6) Add pressure repellent technology. and a vision for the future of pressure drive technology.