Gel and process for preventing loss of circulation, and combinat

Wells – Processes – Cementing – plugging or consolidating

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

166281, 166300, 175 72, 523130, E21B 33138

Patent

active

046432558

ABSTRACT:
A rapid setting gel-forming composition is provided comprising a first substance selected from the group consisting of a polyvinyl alcohol, a polyvinyl alcohol copolymer, and mixtures thereof, and aldehyde, and water, which is useful in preventing the loss of circulation fluids in well drilling, completion of workover operations. A combination process is also provided using a slower setting gel-forming composition for retarding the flow of waters or brines in high permeable non-productive channels in combination with a subsequent acidizing step for increasing the permeability of low porous structure in subterranean formations. The combination process is particularly useful in waterflood operations to increase the sweep efficiency of the oil recovery process while improving the flow oil and drive water in the productive parts of the reservoir.

REFERENCES:
patent: Re31748 (1984-11-01), Block
patent: 2650195 (1953-08-01), Cardwell et al.
patent: 2720501 (1955-10-01), Van Ness
patent: 2787325 (1957-04-01), Holbrook
patent: 3047066 (1962-07-01), Mosely
patent: 3080207 (1963-03-01), Tanabe
patent: 3208524 (1965-09-01), Horner et al.
patent: 3251795 (1966-05-01), Fukushima et al.
patent: 3265536 (1966-08-01), Miller et al.
patent: 3316965 (1967-05-01), Watanabe
patent: 3396790 (1968-08-01), Eaton
patent: 3452817 (1969-07-01), Fallgatter
patent: 3593794 (1971-07-01), Fischer et al.
patent: 3640734 (1972-02-01), Oppenheimer et al.
patent: 3663470 (1972-05-01), Nishimura et al.
patent: 3713488 (1973-01-01), Ellenburg
patent: 3740360 (1973-06-01), Nimerick
patent: 3741307 (1973-03-01), Sandiford et al.
patent: 3746109 (1973-07-01), Darley
patent: 3757863 (1973-09-01), Clampitt et al.
patent: 3762476 (1973-10-01), Gall
patent: 3785437 (1974-01-01), Clampitt et al.
patent: 3794115 (1974-02-01), Skagerberg
patent: 3795276 (1974-03-01), Eilers et al.
patent: 3818998 (1974-06-01), Hessert
patent: 3859269 (1975-01-01), Maurer
patent: 3875074 (1975-04-01), Vassiliades et al.
patent: 3912529 (1975-10-01), Kotani et al.
patent: 3926918 (1975-12-01), Shibata et al.
patent: 3941730 (1976-03-01), Solenberger
patent: 4015995 (1977-04-01), Hess
patent: 4018286 (1977-04-01), Gall et al.
patent: 4154912 (1979-05-01), Phillips et al.
patent: 4261421 (1981-04-01), Watanabe
patent: 4262067 (1981-04-01), Phillips et al.
patent: 4272470 (1981-06-01), Hsu et al.
patent: 4336145 (1982-06-01), Briscoe
patent: 4349443 (1982-09-01), Block
patent: 4353804 (1982-10-01), Green et al.
patent: 4376183 (1983-03-01), Haskell
patent: 4385155 (1983-05-01), Michaels
patent: 4389319 (1983-06-01), Block et al.
patent: 4411800 (1983-10-01), Green et al.
patent: 4424302 (1984-01-01), Block et al.
patent: 4428845 (1984-01-01), Block
patent: 4447341 (1984-05-01), Block
patent: 4472552 (1984-09-01), Blouin
patent: 4473480 (1984-09-01), Green et al.
patent: 4485875 (1984-12-01), Falk
patent: 4486318 (1984-12-01), Green et al.
patent: 4498540 (1985-02-01), Marrocco
Journal of Colloid & Interface Science, vol. 90, No. 1, Nov. 1982, pp. 34-43.
Journal of the Electrochemical Society, vol. 130, No. 2, Feb. 1983, pp. 255-259.
U.S. Government Doc. N81-29531 (NASA Case No. LEW-13, 102-1).

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

Gel and process for preventing loss of circulation, and combinat does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Gel and process for preventing loss of circulation, and combinat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gel and process for preventing loss of circulation, and combinat will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1932395

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