Displacement of oil by polymer flooding. Pt. 1

Journal Article · Fri May 13 04:00:00 EDT 1966 · Prod. Mon.; (United States)

OSTI ID:6486163

Stahl, C D

Unconsolidated glass bead packs and consolidated Bera Sandstone cores were employed in certain oil displacement tests. After the porosity and permeability of a core had been determined, the core was saturated by pumping oil through the brine-saturated core until no more brine was recoverable. The oil-saturated core was then flooded with a 2% sodium chloride-brine. After a displacement run with brine, the core was resaturated with oil until the original oil-saturation was attained. The core was then usually flooded using a polymer solution as the displacing fluid. The test runs indicated that polymer remains behind in the small pore spaces and change the properties, in particular, the permeability of a core. Bearing this in mind, normally only one or two polymer runs were conducted using the same core. For each run, calculations were made of accumulative oil production, accumulative water production, the percentage of oil at any stage of recovery, and of the instantaneous water-oil ratio. Pits of the number of pore volumes of oil recovered vs. the number of pore volumes of fluid injected, as well as several other plots were made. One such plot is presented.

• Research Organization: Pennsylvania State Univ
• OSTI ID: 6486163
• Journal Information: Prod. Mon.; (United States), Journal Name: Prod. Mon.; (United States) Vol. 30:5; ISSN PROMA
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
ENERGY SOURCES
ENGINEERING
ENHANCED RECOVERY
FLUID FLOW
FLUID INJECTION
FOSSIL FUELS
FUELS
OIL WELLS
PERMEABILITY
PETROLEUM
POLYMERS
POROSITY
RECOVERY
RESERVOIR ENGINEERING
STIMULATION
WATERFLOODING
WELL STIMULATION
WELLS