Wells – Processes – Distinct – separate injection and producing wells
Patent
1980-08-20
1982-02-02
Novosad, Stephen J.
Wells
Processes
Distinct, separate injection and producing wells
166274, 166175, 166305R, 252 855D, E21B 4322
Patent
active
043135005
ABSTRACT:
The present invention is directed to a sacrificial or competitive adsorbate for surfactants contained in chemical flooding emulsions for enhanced oil recovery operations. The adsorbate to be utilized in the method of the present invention is a caustic effluent from the bleach stage or the weak black liquor from the digesters and pulp washers of the kraft pulping process. This effluent or weak black liquor is injected into an oil-bearing subterranean earth formation prior to or concurrent with the chemical flood emulsion and is adsorbed on the active mineral surfaces of the formation matrix so as to effectively reduce adsorption of surfactant in the chemical flood. Alternatively, the effluent or liquor can be injected into the subterranean earth formation subsequent to a chemical flood to displace the surfactant from the mineral surfaces for the recovery thereof.
REFERENCES:
patent: 1823440 (1931-09-01), DeGroote et al.
patent: 4006779 (1977-02-01), Kalfoglou
patent: 4157115 (1979-01-01), Kalfoglou
patent: 4235290 (1980-11-01), Kalfoglou
Johnson, Jr. James S.
Westmoreland Clyde G.
Besha Richard G.
Hamel Stephen D.
Larcher Earl L.
Novosad Stephen J.
Suchfield George A.
LandOfFree
Sacrificial adsorbate for surfactants utilized in chemical flood does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sacrificial adsorbate for surfactants utilized in chemical flood, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sacrificial adsorbate for surfactants utilized in chemical flood will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1818079