Secondary recovery methods

Details Secondary recovery methods Secondary recovery methods

E - Fixed Constructions

21

B

31/30, 166/31

E21B 43/22 (2006.01) C09K 8/74 (2006.01)

Patent

CA 1054783

ABSTRACT OF THE DISCLOSURE A method for increasing the production of fluids from a subterranean fluid-bearing formation containing acid- soluble components which comprises injecting into said formation an aqueous acid solution comprising (a) from 0.5 to 28% by weight of a non-oxidizing mineral acid or from 0.01 to 5% by weight of carbon dioxide, and (b) from 0.005 to 2% by weight of at least one sulfonated anti-scale compound of the formula Image wherein A+ is an alkali metal or ammonium ion, and in which R1 and R2 which may be the same or different, are each a saturated or unsaturated aliphatic hydrocarbon group containing up to 20 carbon atoms, the total number of carbon atoms in R1 and R2 being from 9 to 30.

241737

Affiliated with

Also associated with

Rating

Secondary recovery methods does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Secondary recovery methods, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Secondary recovery methods will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-560600