Oil recovery process employing thickened aqueous driving fluid

Details Oil recovery process employing thickened aqueous driving fluid Oil recovery process employing thickened aqueous driving fluid

1976-04-28

1978-03-21

Bagwill, Robert E.

Plant husbandry

Algae culture

252 855R, A01G 700, C09K 300

Patent

active

040795446

ABSTRACT:
This specification discloses a process for the production of petroleum from a petroleum-containing subterranean reservoir employing an aqueous driving fluid containing, as a thickening agent, a biopolymer. The biopolymer is an extracellular heteropolysaccharide synthesized by an alga. A particular bipolymer is one synthesized by the alga Porphyridium aerugineum. The biopolymer may be employed in the aqueous driving fluid as an in-vivo solution or in a reconstituted form. There is also disclosed a process for the growth of, and synthesis of, biopolymer by an alga such as Porphyridium aerugineum.

REFERENCES:
patent: 2731414 (1956-01-01), Binder et al.
patent: 3879890 (1975-04-01), Chen et al.
patent: 3889418 (1975-06-01), Porter et al.
patent: 3958364 (1976-05-01), Schenck et al.
patent: 3969844 (1976-07-01), Fogel et al.
The Production of ------, Ramus, Jul. Phycol. 8, 1972, pp. 97-111.

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