Method of treating a subterranean formation to remove ammonium i

Details Method of treating a subterranean formation to remove ammonium i Method of treating a subterranean formation to remove ammonium i

1980-07-25

1981-11-17

Novosad, Stephen J.

Hydraulic and earth engineering

Earth treatment or control

Chemical

166252, 166266, 166305R, 299 5, C09K 1700, E21B 4322

Patent

active

043008607

ABSTRACT:
An improved method of restoring a subterranean clay-containing formation having ammonium ions absorbed on the clay, wherein the formation is flushed with a halogenated restoration fluid having a halogen therein which reacts with the ammonium ion in the formation to decompose the ammonium ions is disclosed. The barren ammonia-containing restoration fluid, after it passes through the formation, is withdrawn, reconstituted and recycled as fresh restoration fluid back into the formation. The barren fluid is treated with an appropriate base to raise the pH to a highly alkaline level, the treated highly alkaline barren fluid is passed through an airstripping tower to strip substantially all the ammonia from the fluid, chlorine gas is added to the fluid from which the ammonia has been stripped, while controlling the amount of chlorine to produce a reconstituted restoration fluid of a predetermined pH level. Finally, the reconstituted restoration fluid is recycled back into the formation.

REFERENCES:
patent: 2352832 (1944-07-01), Gunderson
patent: 2782859 (1957-02-01), Garst
patent: 2964380 (1960-12-01), Kolodney et al.
patent: 3278232 (1966-10-01), Fitch et al.
patent: 3309140 (1967-03-01), Gardner et al.
patent: 3382924 (1968-05-01), Veley et al.
patent: 3482636 (1969-12-01), Crowe
patent: 3556221 (1971-01-01), Haws et al.
patent: 3938590 (1976-02-01), Redford et al.
patent: 4079783 (1978-03-01), Snavely et al.
patent: 4114693 (1978-09-01), Foster et al.
patent: 4162707 (1979-07-01), Yan

Affiliated with

Also associated with

Rating

Method of treating a subterranean formation to remove ammonium i does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of treating a subterranean formation to remove ammonium i, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of treating a subterranean formation to remove ammonium i will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1290329