Method for imparting selectivity to otherwise nonselective polym

Details Method for imparting selectivity to otherwise nonselective polym Method for imparting selectivity to otherwise nonselective polym

1989-06-09

1991-03-26

Michl, Paul R.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

524 35, 524 36, C09K 702

Patent

active

050029800

ABSTRACT:
A method for selectively closing pores in a zone of greater permeability in a formation for profile control. A rehealable Xanthan biopolymer is combined with a crosslinked non-selective polyacrylamide polymer gel. The combined gel system is injected into a formation where the Xanthan biopolymer gel selectively enters a zone of greater permeability carrying therewith said non-selective gel. Once in the formation's zone of greater permeability, the gel reheals and forms a rigid gel with substantially better temperature stability.

REFERENCES:
patent: 3557562 (1971-01-01), McLaughlin et al.
patent: 4688639 (1987-08-01), Falk
Hawley's Condensed Chemical Dictionary 11th Ed. 1987, pp. 580-581, Guargum; p. 1241 Xanthan.

Affiliated with

Also associated with

Rating

Method for imparting selectivity to otherwise nonselective polym 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 for imparting selectivity to otherwise nonselective polym, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for imparting selectivity to otherwise nonselective polym will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-617600