Lignosulfonates carboxylated with carbon dioxide as additives in

Wells – Processes – Distinct – separate injection and producing wells

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

166274, 252 855D, 260124R, E21B 4322

Patent

active

042496063

ABSTRACT:
A process for producing petroleum from subterranean formations is disclosed wherein production from the formation is obtained by driving a fluid from an injection well to a production well. The process involves injecting via the injection well into the formation an aqueous solution of lignosulfonate salt carboxylated with carbon dioxide as a sacrificial agent to inhibit the deposition of surfactant and/or polymer on the reservoir matrix. The process may best be carried out by injecting the lignosulfonates carboxylated with carbon dioxide into the formation through the injection well mixed with either a polymer, a surfactant solution and/or a micellar dispersion. This mixture would then be followed by a drive fluid such as water to push the chemicals to the production well.

REFERENCES:
patent: 3384171 (1968-05-01), Parker
patent: 3469630 (1969-09-01), Hurd et al.
patent: 3476188 (1969-11-01), Harvey
patent: 3700031 (1972-10-01), Germer et al.
patent: 3797574 (1974-03-01), Feuerbacher et al.
patent: 3865803 (1975-02-01), Falkehag
Kirk-Othmer, Encyclopedia of Chemical Technology, vol. 12, 1967, pp. 369-374.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Lignosulfonates carboxylated with carbon dioxide as additives in does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Lignosulfonates carboxylated with carbon dioxide as additives in, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lignosulfonates carboxylated with carbon dioxide as additives in will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1661535

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.