Method of miscible flooding

Patent · Tue Feb 23 04:00:00 EST 1965

OSTI ID:6705639

Dew, J N; Reed, P W

This is a method of secondary recovery of hydrocarbons wherein a volume of low molecular weight hydrocarbons is injected as the displacement hydrocarbon, together with water. This is followed by injection of gas with water, to push the displacement hydrocarbon through the oil- bearing formation, thus displacing the reservoir oil to recovery wells. Injection of the displacement hydrocarbon, together with water, is done in such volume that a sufficient amount is placed in the reservoir to permit a miscible displacement of the reservoir oil by the displacement hydrocarbon, and miscible displacement thereof by the gas. The relation of the displacement hydrocarbon and the water injected in combination provides water movement at a velocity greater than the velocity of the displacement hydrocarbon, and the relation of the gas and the water injected in combination provides gas movement at a velocity greater than the velocity of the water. (5 claims)

• Assignee: TUL; EDB-81-025588
• Patent Number(s): US 3170513
• OSTI ID: 6705639
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
03 NATURAL GAS
030900 -- Natural Gas-- Artificial Stimulation
Plowshare-- (-1989)
ENERGY SOURCES
ENHANCED RECOVERY
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GAS INJECTION
GASES
MISCIBLE-PHASE DISPLACEMENT
NATURAL GAS
NATURAL GAS WELLS
OIL WELLS
PETROLEUM
RECOVERY
WATERFLOODING
WELLS