Compositions – Leather or fur treating
Patent
1988-07-29
1990-05-15
Terapane, John F.
Compositions
Leather or fur treating
524 83, E21B 4322
Patent
active
049255789
ABSTRACT:
Improved solutions are proposed for an oil recovery process in which oil is displaced by a viscous alkaline aqueous solution. The improved aqueous alkaline solution contains a water-thickening partially hydrolyzed polyacrylamide polymer and a stabilizer consisting essentially of a 2-mercaptobenzothiazole in the presence of a sulfur-containing oxygen scavenger. A readily oxidizable alcohol or glycol may also be included.
REFERENCES:
patent: 3208518 (1965-09-01), Patton
patent: 3343601 (1967-09-01), Pye
patent: 3581824 (1971-06-01), Hurd
patent: 3676494 (1972-07-01), Biland et al.
patent: 3801150 (1974-04-01), Hitzman
patent: 3977470 (1976-08-01), Chang
patent: 4218327 (1980-08-01), Wellington
patent: 4317758 (1982-03-01), Bruning
patent: 4317759 (1982-03-01), Kanda et al.
patent: 4458755 (1984-07-01), Southwick et al.
patent: 4486340 (1984-12-01), Glass
patent: 4502541 (1985-03-01), Lawson et al.
patent: 4852652 (1989-08-01), Kuehne
Derwent Accession No. 80-46971c/27.
CAS No: 93(22):207252z.
Cotton & Wilkinson, Advanced Inorganic Chemistry, N.Y., John Wiley & Sons, 1980, pp. 535-536.
SPE Paper No. 13585, "Chemical Stability Limits of Water-Soluble Polymers Used in Oil Recovery Processes", by R. G. Ryles.
Nelson Richard C.
Southwick Jeffrey G.
Geist Gary L.
Shell Oil Company
Terapane John F.
LandOfFree
Polymer-thickened aqueous solutions containing a mercaptobenzoth does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polymer-thickened aqueous solutions containing a mercaptobenzoth, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polymer-thickened aqueous solutions containing a mercaptobenzoth will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-620100