A Study of Residual Oil Saturation in Heterogeneous Sandstone Experiments

The mechanism of overall residual oil saturation reduction by polymerflood in heterogeneous porous media is studied. A compositional chemical flooding simulator (UTCHEM) using high resolution numerical method was used to simulate the previous coreflooding experiments as well as to study the sensitivity of different parameters -heterogeneity, capillary pressure, mobility ratio, etc., to the oil recovery and residual oil saturation. To provide the important data for the numerical simulation, a porous plate experiment was conducted to construct capillary pressure curves from the capillary pressure measurement data of the target porous media -Antolini sandstone outcrops. A capillary pressure measurement device was designed and made capable of desaturating four sandstone samples simultaneously with the realistic reservoir fluids and reservoir temperature. The study showed that polymerflood reduces the overall residual oil saturation in heterogeneous porous media by mitigating the negative impact of heterogeneity present in the media.

Name thesis:degree_name

Masters of Science in Engineering

Level thesis:degree_level

Masters

Discipline thesis:degree_discipline

Petroleum Engineering

Grantor

University of Texas at Austin

Year dc:date.issued

1994

Author dc:creator

• Lu, Yunshan

Advisor dc:contributor.advisor

• Pope, Gary A.

• Porous media
• Sandstone

Statement dc:rights

• Copyright © is held by the author. Presentation of this material on the Libraries' web site by University Libraries, The University of Texas at Austin was made possible under a limited license grant from the author who has retained all copyrights in the works.

Language dc:language.iso

eng

Identifier URI

http://dx.doi.org/10.26153/tsw/8187

OAI identifier oai:identifier

oai:repositories.lib.utexas.edu:2152/81174