Plugging of water-producing zones in a subterranean formation

Wells – Processes – Distinct – separate injection and producing wells

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

166292, E21B 33138

Patent

active

040319580

ABSTRACT:
A method of selectively plugging permeable water-producing zones in a subterranean formation of nonuniform permeability comprising sequentially injecting into the formation (1) an aqueous solution of a first reactant material rendered more viscous than the subsequently injected liquids by the addition of a viscosity increasing agent, (2) a low viscosity inert aqueous spacer liquid, (3) a low viscosity aqueous solution containing a second reactant material which, on contact, will react with the first reactant material to produce an insoluble precipitate, (4) a low viscosity inert aqueous spacer liquid and (5) an additional amount of the aqueous solution of a first reactant material, which aqueous solution is optionally rendered more viscous than the previously injected aqueous solution containing the second reactant material by the addition thereto of a viscosity increasing agent.

REFERENCES:
patent: 2208766 (1940-07-01), Lawton
patent: 2365039 (1944-12-01), Andresen
patent: 2402583 (1946-06-01), Andresen
patent: 2747670 (1956-05-01), King et al.
patent: 2807324 (1957-09-01), King et al.
patent: 3202214 (1965-08-01), McLaughlin
patent: 3285338 (1966-11-01), Boston
patent: 3307629 (1967-03-01), Sharp
patent: 3342262 (1967-09-01), King et al.
patent: 3396790 (1968-08-01), Eaton
patent: 3530937 (1970-09-01), Bernard
patent: 3656550 (1972-04-01), Wagner et al.
patent: 3658131 (1972-04-01), Biles
patent: 3805893 (1974-04-01), Sarem
patent: 3871452 (1975-03-01), Sarem
patent: 3882938 (1975-05-01), Bernard

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

Plugging of water-producing zones in a subterranean formation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Plugging of water-producing zones in a subterranean formation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Plugging of water-producing zones in a subterranean formation will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1515986

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