Condensate recovery by cycling at declining pressure
An investigation of the factors involved in condensate recovery by gas cycling was made for this paper. The principal factors are: (1) the sweep patterns developed by the cycled gas and the resulting wet gas rcovery; and (2) the revaporization of the liquid condensate within the reservoir upon contact by dry injected gas. It is concluded that cycling condensate reservoirs under conditions of declining pressure, rather than constant pressure, is advantageous from both a recovery and an economic standpoint By operating at declining pressure, the wet gas displaced from the swept areas is recovered concurrently with wet gas recovered by gas expansion from the unswept portions of the reservoir. Any liquid condensed in the swept areas is revaporized by dry injection gas and recovered as an enriched gas. Calculations of reservoir performance are presented for the Windfall Devonian Leduc reef reservoir, Alberta, Can., exploited by this scheme. (17 refs.)
- OSTI ID:
- 6380968
- Country of Publication:
- United States
- Language:
- English
Similar Records
Prediction of liquid recovery from a gas condensate reservoir
Fluid contact monitoring in some western Canadian reefs
Related Subjects
030300* -- Natural Gas-- Drilling
Production
& Processing
CONDENSATES
EVAPORATION
FLUID FLOW
FLUID INJECTION
FLUIDS
GAS CONDENSATE FIELDS
GAS CONDENSATES
GAS INJECTION
GEOLOGIC DEPOSITS
LIQUEFACTION
LIQUIDS
MATHEMATICS
MINERAL RESOURCES
NATURAL GAS DEPOSITS
NATURAL GAS LIQUIDS
PETROLEUM DEPOSITS
PHASE TRANSFORMATIONS
PRESSURIZING
RECOVERY
RESOURCES
THERMOCHEMICAL PROCESSES
VAPOR CONDENSATION