Multi-stage development process and model of steam chamber for SAGD production in a heavy oil reservoir with an interlayer.

ABSTRACT: Steam-assisted gravity drainage (SAGD) is an efficient thermal recovery technique for oil sands and extra heavy oil exploitation. The development of steam chamber goes through multi-stage physical processes for SAGD production in a heavy oil reservoir with an interlayer. In this study, considering the situation that an interlayer is located directly above a pair of horizontal wells, we analyzed the whole process of steam chamber development. We divided the whole process into stages I-V, which are the first rising stage, the first lateral expansion stage, the second rising stage, the second lateral expansion stage and the confinement stage, respectively. Particularly, we further divided stage II into 2 periods and stage IV into 3 periods. These stages and periods can help us understand the

SUBMITTER: Nie RS 

PROVIDER: S-EPMC11582660 | biostudies-literature | 2024 Apr

REPOSITORIES: biostudies-literature