Development of More-Efficient Gas Flooding Applicable to Shallow Reservoirs

Rossen, William R. ; Johns, Russell T. ; Pope, Gary A.

University of Texas at Austin

关键词: Sweep Efficiency;    02 Petroleum;    Gases;    Solubility;    Simulators;   

DOI  :  10.2172/834369
RP-ID  :  NONE
RP-ID  :  AC26-99BC15208
RP-ID  :  834369

美国|英语

来源: UNT Digital Library

【 摘 要 】

The objective of this research is to widen the applicability of gas flooding to shallow oil reservoirs by reducing the pressure required for miscibility using gas enrichment and increasing sweep efficiency with foam. Task 1 examines the potential for improved oil recovery with enriched gases. Subtask 1.1 examines the effect of dispersion processes on oil recovery and the extent of enrichment needed in the presence of dispersion. Subtask 1.2 develops a fast, efficient method to predict the extent of enrichment needed for crude oils at a given pressure. Task 2 develops improved foam processes to increase sweep efficiency in gas flooding. Subtask 2.1 comprises mechanistic experimental studies of foams with N2 gas. Subtask 2.2 conducts experiments with CO{sub 2} foam. Subtask 2.3 develops and applies a simulator for foam processes in field application.