Method for treating a produced hydrocarbon-containing fluid

Details Method for treating a produced hydrocarbon-containing fluid Method for treating a produced hydrocarbon-containing fluid

1988-01-05

1989-09-26

Wyse, Tom

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210774, 210790, 210799, 210806, 208187, B01D 1704

Patent

active

048698300

ABSTRACT:
A method and system for reducing the oil concentration of a produced, hydrocarbon-containing fluid to no more than about 10 ppm and softening the deoiled fluid to reduce scale-forming constituents. The method and system are capable of treating fluids having temperatures within the range from approximately 120.degree. C. to approximately 160.degree. C., without the need for cooling the fluid to perform either the deoiling step or the softening step. In a preferred embodiment, the deoiling step is performed by first filtering the hot fluid in a first set of coalescing filters and then in a second, identical set of coalescing filters, and the softening step is performed in a thermal softening unit wherein steam is directly sparged into the deoiled fluid in a reaction zone under pressure sufficient to prevent boiling at the reaction zone temperature.

REFERENCES:
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patent: 4392944 (1983-07-01), Kessick
patent: 4424113 (1984-01-01), Mitchell
patent: 4466885 (1984-08-01), Ronden
patent: 4518505 (1985-05-01), Lim et al.

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