Factors affecting solvent slug size requirements in hydrocarbon miscible flooding
Conference
·
· Soc. Pet. Eng. AIME, Pap.; (United States)
OSTI ID:6569733
Selecting an optimum solvent slug size is critical in the proper design of a hydrocarbon miscible flood. It has been common practice in the industry to calculate slug size requirements using a dispersion model. However, this method often yields slug sizes that are much smaller than the minimum requirements suggested by many field test results. This paper reviews the assumptions and limitations of the dispersion models and proposes many other important factors which must be taken into account when designing solvent slugs. More specifically, the paper suggests possible modifications to the dispersion-capacitance model, as it is applied to carbonate reservoirs exhibiting dual porosity. As well, the influence of the following factors on slug requirements is examined: water blocking of solvent at high water saturations, residual solvent within and behind the solvent bank, and the multiple-contact miscible displacement process.
- Research Organization:
- Gulf Canada Resources Inc.
- OSTI ID:
- 6569733
- Report Number(s):
- CONF-8304162-
- Conference Information:
- Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE/DOE 12636
- Country of Publication:
- United States
- Language:
- English
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