Compositions and methods for reducing the permeability of underg

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

524596, 524799, 527400, 252 8551, 166295, E02B 312

Patent

active

047436336

ABSTRACT:
The invention provides a method for the enhanced recovery of oil from an oil-bearing stratum having a zone of high fluid permeability through plugging of this zone by introducing into the stratum a gelable solution which, in the case of use under moderately high operating temperatures in the stratum, comprises a polyphenolic lignin extract, a formaldehyde source and sufficient alkaline material to give a solution having a pH of at least 9.0 and which, in the case of higher operating temperatures, comprises a lignosulfonate and a source of formaldehyde or tannin in aqueous solution.

REFERENCES:
patent: 2649414 (1953-08-01), Salathiel
patent: 3325426 (1967-06-01), Marham
patent: 3395033 (1968-07-01), Remer
patent: 3599433 (1971-08-01), Murata
patent: 3686872 (1972-08-01), Whitworth
patent: 3696622 (1972-10-01), Tohma
patent: 3749172 (1973-07-01), Hessert et al.
patent: 3864291 (1975-02-01), Enkvist
patent: 3882938 (1975-05-01), Bernard
patent: 3884861 (1975-05-01), Whitworth
patent: 3897827 (1975-08-01), Felber et al.
patent: 4052359 (1977-10-01), Higgenbottom
patent: 4091868 (1978-05-01), Kozlowski et al.
patent: 4212747 (1980-07-01), Swanson
patent: 4246124 (1981-01-01), Swanson
patent: 4275789 (1981-06-01), Lawrence et al.
patent: 4663367 (1987-05-01), Navratil
Westvaco Polychemicals Data Bulletin #801218.
Westvaco Data Sheet REAX 27-A Resin Correactant.
Westvaco Lignochemicals and Their Applications.
Petroleum Society of CIM "Block and Diverting Agents for Enhanced Oil Recovery", Paper No. 82-33-54, M. Navratil, M. Mitchell, M. Slovak, Jun., 1982.
American Petroleum Institute Recommended Practice Standard Procedure for Testing Drilling Fluids (8th Ed., Apr. 80).
Reed, Inc., Data Sheet, Temsperse 5001.
Reed, Inc., Data Sheet, Lignosol NSX-135 (Jun. 1981).
Reed, Inc. Data Sheet, Lignosol SFX.
Reed Lignin, Data Sheet, Lignosol FTA (Jun. 1981).
Reed, Inc., Data Sheet, Lignosol HCX (Feb. 1978).
Reed, Inc. Data Sheet, Lignosol AXD (May 1978).
Reed, Inc., Data Sheet, Lignosol XD.
Reed, Inc., Data Sheet, Lignosol TSD.
Reed, Inc., Data Sheet, Lignosol BD.

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

Compositions and methods for reducing the permeability of underg does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Compositions and methods for reducing the permeability of underg, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compositions and methods for reducing the permeability of underg will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1321409

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