Mathematical simulation of condensate-gas reservoirs

Thesis/Dissertation · Fri Jan 01 04:00:00 EST 1971

OSTI ID:6023564

Spivak, A

This research outlines a new method for predicting the behavior of condensate-gas petroleum reservoirs. The method is a mathematical simulation model in which the partial differental equations describing the flow of fluid through porous media are solved numerically. The model accounts for both retrograde condensation and the revaporization of condensed liquid by injected dry gas. A condensate-gas is assumed to be a pseudo 2-component system for which the 2 pseudo-components are a dry gas and a hydrocarbon liquid. The dry gas holds hydrocarbon liquid as a single-valued function of pressure. The liquid content vs. pressure curve is forced to match the retrograde liquid volume vs. pressure relationship obtained in a standard laboratory constant volume depletion test. The continuity or mass balance equations for dry gas, liquid hydrocarbon, and water are expressed in finite difference form and solved in 3 spatial dimensions using the Douglas-Rachford iterative alternating-directiotrolled increase in temperature and reductionreaction mechanism could be the existence, ahead of the hydorfluoric acid front, of a ures which might control the distribution of uraniumacterized by a thermally activated process. he effect of various parameters, temperature, pressure, and steam percent in hydrogen feed. Fifteen experimental runs have been completed using NiMo as the main component of thThe Q/sub 2//sup +/ value obtained for /sup 200/Hg is in agreement with previous work, but that for /sup 202/Hg is not. The results obtained are compared with the predictions of various nuclear models, and the mass dependence of Q/sub 2//sup +/ in the region 182 < A < 206 is examined.

• OSTI ID: 6023564
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
030200* -- Natural Gas-- Reserves
Geology
&amp; Exploration
EVAPORATION
FLUID FLOW
FLUID INJECTION
GAS CONDENSATE FIELDS
GAS INJECTION
GEOLOGIC DEPOSITS
MATERIALS
MATHEMATICAL MODELS
MINERAL RESOURCES
NATURAL GAS DEPOSITS
PETROLEUM DEPOSITS
PHASE TRANSFORMATIONS
POROUS MATERIALS
RESERVOIR ROCK
RESOURCES
SIMULATION
TESTING
VAPOR CONDENSATION