Speaker
Description
Petroleum reservoirs are important porous media, and their internal permeability plays a crucial role in their oil storage and transportation capabilities. After years of rolling development using multiple displacement methods, major oil fields around the world have shown different changes in reservoir pore structure characteristics, clay mineral composition, and permeability. By comprehensively utilizing data such as scanning electron microscopy, cast thin sections, nuclear magnetic resonance, and inspection well analysis, the differential mechanism of permeability changes is analyzed from the aspects of reservoir clay minerals, median particle size, and pore distribution characteristics. The change rules of different permeability levels before and after water flooding and polymer flooding are studied, and a qualitative interpretation method for the relationship between oil displacement efficiency and reservoir permeability changes is established. This study will effectively guide the exploration of remaining oil and the preparation of perforation plans in the later stage of ultra-high water cut reservoirs in various oil fields, and improve the final recovery degree of reservoir media.
| Country | china |
|---|---|
| Acceptance of the Terms & Conditions | Click here to agree |
