Scale-up of miscible flood processes. [Quarterly report], January 1--April 31, 1992
Efficient application of miscible floods to heterogeneous reservoirs requires the designer to take advantage of more than one of the physical mechanisms that act and interact to determine displacement performance. In this report, the investigators summarize the interactions of phase behavior, nonuniform flow, and crossflow and based on novel results obtained during the course of their experimental efforts. They suggest design opportunities for application of gas injection to near-miscible recovery processes, to enhanced gravity drainage, and even to fractured reservoirs. To design such processes intelligently, the quantitative scaling of the interplay of phase equilibria, reservoir heterogeneity, viscous fingering and particularly crossflow must be understood. In essence, they propose to make use of crossflow, i.e. transport in the direction transverse to the basic flow direction, to sweep portions of reservoirs that can be reached only very slowly by direct displacement. In this report, the core displacement and flow visualization experiments described suggest that the effects of low interfacial tensions (IFT`s) and gravity can be used to advantage in the design of multicontact miscible displacements for heterogeneous reservoirs, including fractured reservoirs.
- Research Organization:
- Stanford Univ., CA (United States). Dept. of Petroleum Engineering
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG21-89MC26253
- OSTI ID:
- 10161157
- Report Number(s):
- DOE/MC/26253-T11; ON: DE92017668
- Resource Relation:
- Other Information: PBD: [1992]
- Country of Publication:
- United States
- Language:
- English
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