Oil recovery method using high water content oil-external micellar dispersions
A high water content oil-external micellar dispersion (containing 55 percent to about 90 percent water) was developed for enhanced oil recovery. The micellar slug contained petroleum sulfonate (molecular weight averaged at about 350 to about 525), hydrocarbon, water and cosurfactant. The micellar slug was driven by a mobility buffer slug, which consisted of No. 530 Pusher, fusel oil and the residue Palestine water (420 ppm TDS) from the Palestine water reservoir in Palestine, Illinois. Fired Berea sandstone cores (porosity near 20 percent) were saturated with water (18,000 ppm sodium chloride), flooded with sweet black crude oil from Henry lease in Illinois (7 cp at 72/sup 0/F), and waterflooded with water from Henry lease (18,000 ppm TDS). A maximum recovery of 11.5 percent of oil in place was recovered by 2 percent pore volume of a micellar dispersion containing petroleum sulfonate (MW 406), 70 percent by volume distilled water, and p-hexanol.
- Assignee:
- Marathon Oil Co.
- Patent Number(s):
- US 3613786
- OSTI ID:
- 7215960
- Country of Publication:
- United States
- Language:
- English
Similar Records
Use of water-external micellar dispersions in oil recovery
Use of water-external micellar dispersions in oil recovery
Related Subjects
020300* -- Petroleum-- Drilling & Production
ENERGY SOURCES
ENHANCED RECOVERY
ESTERS
FLUID INJECTION
FOSSIL FUELS
FUELS
MICELLAR SYSTEMS
MICROEMULSION FLOODING
MISCIBLE-PHASE DISPLACEMENT
MOBILITY
OIL WELLS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PETROLEUM
PETROLEUM SULFONATES
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
SULFONATES
SULFONIC ACID ESTERS
SURFACTANTS
WELLS