关键词: 砾岩油气藏, 开发, 压裂, 堵水, 加密井

Abstract: Conglomerate, reservoirs. in Menggulin are under-saturated bottom-water reservoirs. Development of such reservoirs proved to be difficult due to small oil-bearing formation thickness, high oil-water viscosity ratio and significant reservoir heterogeneity and the whole development process is characterized by short-term water-free oil production period rapid increase of total water-cut, and rapid decline of production rate. On the basis of in-depth study of reservoir geological characteristics and dynamic features, in view of development characteristics at different stages, the authors adopted development techniques and adjusting measures with strong aims and achieve the goal of reducing the water-cut increase speed, enhancing the swept volume of injected water and restraining the bottom-water coning. In the recent 10 years, the reservoir development has reached a high level after comprehensive application of various development technologies. The paper also reviewed in detail the development adjusting technologies for such reservoirs, providing valuable experiences for development of similar reservoirs in China.

Key words: Conglomerate reservoir, development, fracturing, water-shutoff, infill well