Method for the removal of oxygen from water

Details Method for the removal of oxygen from water Method for the removal of oxygen from water

1983-11-30

1986-01-21

Fisher, Richard V.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

55 55, 210750, 261 96, B01D 1900

Patent

active

045656347

ABSTRACT:
Water intended for injection into an oil reservoir is freed from oxygen by gravitating the water through a vacuum tower. Gases liberated from the water by the vacuum process are drawn off at the bottom of the respective stages of the tower. Liberated nitrogen at the top of each stage will then flow down through the tower in cocurrent flow with the water and thus act as an internal stripping gas reducing the partial pressure of oxygen in the gaseous phase. Gases and vapors drawn off from the bottom of each vacuum stage after the first stage are pressurized to the pressure of the preceeding stage and reinjected into that stage.

REFERENCES:
patent: 2764533 (1956-09-01), Oetjen et al.
patent: 3815330 (1974-06-01), Lauley
patent: 4153556 (1979-05-01), Riedinger
patent: 4370151 (1983-01-01), Herbrechtsmeier
"How Conoco Floods with Seawater", Charles M. Hudgins, Jr. and R. T. Hanson, The Oil and Gas Journal, pp. 71-77, Feb. 15, 1971.
"Efficient Removal of Oxygen in a Waterflood by Vacuum Deaeration", Wallace J. Frank, American Institute of Mining, Metallurgical and Petroleum Engineers, Inc., Paper No. SPE 4064, pp. 1-5, 1972.
"The Forties Field Sea-Water Injection System", R. W. Mitchell, Society of Petroleum Engineers of AIME, pp. 877-884, Jun. 1978.
"How to Vacuum Deaerate Injection Water", James McGill, The Oil and Gas Journal, pp. 81-84, Oct. 1, 1973.

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