US4260019A
Expired / Lapsed
US
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Method of recovering petroleum from a subterranean reservoir incorporating resinous polyalkylene oxide adducts
Assignee: Magna Corp
•
Filing: 1979-06-04
•
Granted: 1981-04-07
•
Expires: 1999-06-04
Abstract
Abstract The method of recovering petroleum from a subterranean reservoir preferably comprising the steps of: (1) introducing through an injection well a predeterminable amount of a polyalkylene oxide adduct of a fusible, water-insoluble organic aromatic hydrocarbon solvent-soluble synthetic resin, wherein said resin has from between about 4 to about 15 phenolic groups and is an alkyl or cycloaliphatic substituted phenol-aldehyde condensate of an ortho- or para-substituted phenol and an aldehyde, said condensate resin being thereafter further condensed with an alkylene oxide containing less than about five carbon atoms in an amount equal to at least one mole of alkylene oxide per phenolic moiety of said resin, said condensation product at about 25° C.: (a) being less than about 1% by volume soluble in water and in isooctane; (b) having a solubility parameter in the range of between about 6.9 and about 8.5; and (c) spreading at the interface between distilled water and refined mineral oil to form a film having a thickness no greater than about 20 Angstroms at a film pressure of about 16 dynes per cm, the weight ratio of oxide to condensation product in a solvent-free state being between about 1-to-10 and about 10-to-1; (2) contacting said petroleum in said reservoir with an effective thin film forming amount of said polyalkylene oxide adduct; (3) and introducing into the formation an aqueous injection medium to urge said petroleum toward and through a producing well.
Inventors
- 👤 Charles M. Blair, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:24
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/84; C09K8/86; C09K8/88; C09K8/885; C09K8/58; C09K8/588; C09K8/592; Y; Y10; Y10S; Y10S507/00; Y10S507/935; Y10S507/936; Y10S507/937; Y10S507/938
Claims Analysis
Total Claims: 43
Claim 1
Independent Claim
214 words
The method of recovering petroleum from a subterranean reservoir comprising the steps of: (1) introducing into said reservoir a predeterminable amount of a polyalkylene oxide adduct of a fusible, water-insoluble organic aromatic hydrocarbon solvent-soluble synthetic resin, wherein said resin has from between about 4 to about 15 phenolic groups and is an alkyl or cycloaliphatic substituted phenol-aldehyde condensate of an ortho- or para-substituted phenol and an aldehyde, said condensate resin being thereafter further condensed with an alkylene oxide containing less than about five carbon atoms in an amount equal to at least one mole of alkylene oxide per phenolic moiety of said resin, said condensation product at about 25° C.: (a) being less than about 1% by volume soluble in water and in isooctane; (b) having a solubility parameter in the range of between about 6.9 and about 8.5; and (c) spreading at the interface betweem distilled water and refined mineral oil to form a file having a thickness no greater than about 20 Angstroms at a film pressure of about 16 dynes per cm, the weight ratio of oxide to condensation product in a solvent-free state being between about 1-to-10 and about 10-to-1; and (2) contacting said petroleum in said reservoir with an effective thin film forming amount of said polyalkylene oxide adduct.
Claim 2
Independent Claim
214 words
The method of recovering petroleum from a subterranean reservoir comprising the steps of: (1) introducing into said reservoir a predeterminable amount of a polyalkylene oxide adduct of a fusible, water-insoluble organic aromatic hydrocarbon solvent-soluble synthetic resin, wherein said resin has from between about 4 to about 15 phenolic groups and is an alkyl or cycloaliphatic substituted phenol-aldehyde condensate of an ortho- or para-substituted phenol and an aldehyde, said condensate resin being thereafter further condensed with an alkylene oxide containing less than about five carbon atoms in an amount equal to at least one mole of alkylene oxide per phenolic moiety of said resin, said condensation product at about 25° C.: (a) being less than about 1% by volume soluble in water and in isooctane; (b) having a solubility parameter in the range of between about 6.9 and about 8.5; and (c) spreading at the interface betweem distilled water and refined mineral oil to form a file having a thickness no greater than about 20 Angstroms at a film pressure of about 16 dynes per cm, the weight ratio of oxide to condensation product in a solvent-free state being between about 1-to-10 and about 10-to-1; and (2) contacting said petroleum in said reservoir with an effective thin film forming amount of said polyalkylene oxide adduct.
Claim 3
Dependent Claim
15 words
The method of claim 1 wherein said alkylene oxide contains less than C 5 .
Claim 4
Dependent Claim
30 words
The method of claim 1 wherein said ethylene oxide is present in said adduct in an amount between about 1 and about 5 moles per phenolic moiety in said resin.
Claim 5
Dependent Claim
13 words
The method of claim 1 wherein said resin is an alkyl phenol-formaldehyde condensate.
Claim 6
Dependent Claim
20 words
The method of claim 1 wherein said condensate is further condensed with said alkylene oxide within a substantially solvent-free environment.
Claim 7
Dependent Claim
29 words
The method of claim 1 wherein the alkylene oxide is at least one of a member selected from the class consisting of ethylene oxide, propylene oxide, and butylene oxide.
Claim 8
Dependent Claim
21 words
The method of claim 1 wherein said weight ratio of oxide to condensation product is between about 1-to-5 and about 3-to-1.
Claim 9
Independent Claim
233 words
The method of recovering petroleum from a subterranean reservoir comprising the steps of: (1) introducing into said reservoir a predeterminable amount of a polyalkylene oxide adduct of a fusible, water-insoluble organic aromatic hydrocarbon solvent-soluble synthetic resin, wherein said resin has from between about 4 to about 15 phenolic groups and is an alkyl or cycloaliphatic substituted phenol-aldehyde condensate of an ortho- or a para-substituted phenol and an aldehyde, said condensate resin being thereafter further condensed with an alkylene oxide containing less than about five carbon atoms in an amount equal to at least one mole of alkylene oxide per phenolic moiety of said resin, said condensation product at about 25° C. (a) being less than about 1% by volume soluble in water and in isooctane; (b) having a solubility parameter in the range of between about 6.9 and about 8.5; and (c) spreading at the interface between distilled water and refined mineral oil to form a film having a thickness no greater than about 20 Angstroms at a film pressure of about 16 dynes per cm, the weight ratio of oxide to condensation product in a solvent-free state being between about 1-to-10 and about 10-to-1; (2) contacting said petroleum in said reservoir with an effective thin film forming amount of said polyalkylene oxide adduct; and (3) introducing into the reservoir an injection medium to urge said petroleum through and out of said reservoir.
Claim 10
Independent Claim
233 words
The method of recovering petroleum from a subterranean reservoir comprising the steps of: (1) introducing into said reservoir a predeterminable amount of a polyalkylene oxide adduct of a fusible, water-insoluble organic aromatic hydrocarbon solvent-soluble synthetic resin, wherein said resin has from between about 4 to about 15 phenolic groups and is an alkyl or cycloaliphatic substituted phenol-aldehyde condensate of an ortho- or a para-substituted phenol and an aldehyde, said condensate resin being thereafter further condensed with an alkylene oxide containing less than about five carbon atoms in an amount equal to at least one mole of alkylene oxide per phenolic moiety of said resin, said condensation product at about 25° C. (a) being less than about 1% by volume soluble in water and in isooctane; (b) having a solubility parameter in the range of between about 6.9 and about 8.5; and (c) spreading at the interface between distilled water and refined mineral oil to form a film having a thickness no greater than about 20 Angstroms at a film pressure of about 16 dynes per cm, the weight ratio of oxide to condensation product in a solvent-free state being between about 1-to-10 and about 10-to-1; (2) contacting said petroleum in said reservoir with an effective thin film forming amount of said polyalkylene oxide adduct; and (3) introducing into the reservoir an injection medium to urge said petroleum through and out of said reservoir.
Claim 11
Dependent Claim
15 words
The method of claim 8 wherein said alkylene oxide contains less than C 5 .
Claim 12
Dependent Claim
30 words
The method of claim 8 wherein said ethylene oxide is present in said adduct in an amount between about 1 and about 5 moles per phenolic moiety in said resin.
Claim 13
Dependent Claim
13 words
The method of claim 8 wherein said resin is an alkyl phenol-formaldehyde condensate.
Claim 14
Dependent Claim
20 words
The method of claim 8 wherein said condensate is further condensed with said alkylene oxide within a substantially solvent-free environment.
Claim 15
Dependent Claim
29 words
The method of claim 8 wherein the alkylene oxide is at least one of a member selected from the class consisting of ethylene oxide, propylene oxide, and butylene oxide.
Claim 16
Dependent Claim
21 words
The method of claim 8 wherein said weight ratio of oxide to condensation product is between about 1-to-5 and about 3-to-1.
Claim 17
Independent Claim
224 words
The method of recovering petroleum from a subterranean reservoir penetrated by an injection well and a producing well, comprising the steps of: (1) introducing through said injection well a predeterminable amount of a polyalkylene oxide adduct of a fusible, water-insoluble organic aromatic hydrocarbon solvent-soluble synthetic resin, wherein said resin has from between about 4 to about 15 phenolic groups and is an alkyl or cycloaliphatic substituted phenol-aldehyde condensate of an ortho- or para-substituted phenol and an aldehyde, said condensate resin being thereafter further condensed with an alkylene oxide containing less than about five carbon atoms in an amount equal to at least one mole of alkylene oxide per phenolic moiety of said resin, said condensation product at about 25° C.: (a) being less than about 1% by volume soluble in water and in isooctane; (b) having a solubility parameter in the range of between about 6.9 and about 8.5; and (c) spreading at the interface between distilled water and refined mineral oil to form a film having a thickness no greater than about 20 Angstroms at a film pressure of about 16 dynes per cm, the weight ratio of oxide to condensation product in a solvent-free state being between about 1-to-10 and about 10-to-1; and (2) contacting said petroleum in said reservoir with an effective thin film forming amount of said polyalkylene oxide adduct.
Claim 18
Independent Claim
224 words
The method of recovering petroleum from a subterranean reservoir penetrated by an injection well and a producing well, comprising the steps of: (1) introducing through said injection well a predeterminable amount of a polyalkylene oxide adduct of a fusible, water-insoluble organic aromatic hydrocarbon solvent-soluble synthetic resin, wherein said resin has from between about 4 to about 15 phenolic groups and is an alkyl or cycloaliphatic substituted phenol-aldehyde condensate of an ortho- or para-substituted phenol and an aldehyde, said condensate resin being thereafter further condensed with an alkylene oxide containing less than about five carbon atoms in an amount equal to at least one mole of alkylene oxide per phenolic moiety of said resin, said condensation product at about 25° C.: (a) being less than about 1% by volume soluble in water and in isooctane; (b) having a solubility parameter in the range of between about 6.9 and about 8.5; and (c) spreading at the interface between distilled water and refined mineral oil to form a film having a thickness no greater than about 20 Angstroms at a film pressure of about 16 dynes per cm, the weight ratio of oxide to condensation product in a solvent-free state being between about 1-to-10 and about 10-to-1; and (2) contacting said petroleum in said reservoir with an effective thin film forming amount of said polyalkylene oxide adduct.
Claim 19
Dependent Claim
15 words
The method of claim 15 wherein said alkylene oxide contains less than C 5 .
Claim 20
Dependent Claim
30 words
The method of claim 15 wherein said ethylene oxide is present in said adduct in an amount between about 1 and about 5 moles per phenolic moiety in said resin.
Claim 21
Dependent Claim
13 words
The method of claim 15 wherein said resin is an alkyl phenol-formaldehyde condensate.
Claim 22
Dependent Claim
20 words
The method of claim 15 wherein said condensate is further condensed with said alkylene oxide within a substantially solvent-free environment.
Claim 23
Dependent Claim
29 words
The method of claim 15 wherein the alkylene oxide is at least one of a member selected from the class consisting of ethylene oxide, propylene oxide, and butylene oxide.
Claim 24
Dependent Claim
21 words
The method of claim 15 wherein said weight ratio of oxide to condensation product is between about 1-to-5 and about 3-to-1.
Claim 25
Dependent Claim
23 words
The method of claim 1 or 15 wherein said polyalkylene oxide adduct is introduced into said reservoir in the form of an emulsion.
Claim 26
Dependent Claim
12 words
The method of claim 22 wherein said emulsion is a micellar emulsion.
Claim 27
Dependent Claim
18 words
The method of claim 1 or 15 wherein said polyalkylene oxide adduct is incrementally introduced into said reservoir.
Claim 28
Dependent Claim
21 words
The method of claim 1 or 15 wherein said polyalkylene oxide adduct is introduced into said reservoir with an organic solvent.
Claim 29
Dependent Claim
28 words
The method of claim 25 wherein said organic solvent is a member selected from the class consisting of benzene, xylene, toluene, an aromatic petroleum fraction, turpentine and tetralin.
Claim 30
Dependent Claim
27 words
The method of claim 25 wherein said organic solvent is a member selected from the class consisting of hexanol, cresol, butanol, diisobutyl ketone and hydrocarbon mixtures thereof.
Claim 31
Independent Claim
242 words
The method of recovering petroleum from a subterranean reservoir penetrated by an injection well and a producing well, comprising the steps of: (1) introducing through said injection well a predetermined amount of a polyalkylene oxide adduct of a fusible, water-insoluble organic aromatic hydrocarbon solvent-soluble synthetic resin, wherein said resin has from between about 4 to about 15 phenolic groups and is an alkyl or cycloaliphatic substituted phenol-aldehyde condensate of an ortho- or parasubstituted phenol and an aldehyde, said condensate resin being thereafter further condensed with an alkylene oxide containing less than about five carbon atoms in an amount equal to at least one mole of alkylene oxide per phenolic moiety of said resin, said condensation product at about 25° C.: (a) being less than about 1% by volume soluble in water and in isooctane; (b) having a solubility parameter in the range of between about 6.9 and about 8.5; and (c) spreading at the interface between distilled water and refined mineral oil to form a film having a thickness no greater than about 20 Angstroms at a film pressure of about 16 dynes per cm, the weight ratio of oxide to condensation product in a solvent-free state being between about 1-to-10 and about 10-to-1; (2) contacting said petroleum in said reservoir with an effective thin film forming amount of said polyalkylene oxide adduct; and (3) introducing into the reservoir an injection medium to urge said petroleum toward and through said producing well.
Claim 32
Independent Claim
242 words
The method of recovering petroleum from a subterranean reservoir penetrated by an injection well and a producing well, comprising the steps of: (1) introducing through said injection well a predetermined amount of a polyalkylene oxide adduct of a fusible, water-insoluble organic aromatic hydrocarbon solvent-soluble synthetic resin, wherein said resin has from between about 4 to about 15 phenolic groups and is an alkyl or cycloaliphatic substituted phenol-aldehyde condensate of an ortho- or parasubstituted phenol and an aldehyde, said condensate resin being thereafter further condensed with an alkylene oxide containing less than about five carbon atoms in an amount equal to at least one mole of alkylene oxide per phenolic moiety of said resin, said condensation product at about 25° C.: (a) being less than about 1% by volume soluble in water and in isooctane; (b) having a solubility parameter in the range of between about 6.9 and about 8.5; and (c) spreading at the interface between distilled water and refined mineral oil to form a film having a thickness no greater than about 20 Angstroms at a film pressure of about 16 dynes per cm, the weight ratio of oxide to condensation product in a solvent-free state being between about 1-to-10 and about 10-to-1; (2) contacting said petroleum in said reservoir with an effective thin film forming amount of said polyalkylene oxide adduct; and (3) introducing into the reservoir an injection medium to urge said petroleum toward and through said producing well.
Claim 33
Dependent Claim
15 words
The method of claim 28 wherein said alkylene oxide contains less than C 5 .
Claim 34
Dependent Claim
30 words
The method of claim 28 wherein said ethylene oxide is present in said adduct in an amount between about 1 and about 5 moles per phenolic moiety in said resin.
Claim 35
Dependent Claim
13 words
The method of claim 28 wherein said resin is an alkyl phenol-formaldehyde condensate.
Claim 36
Dependent Claim
20 words
The method of claim 28 wherein said condensate is further condensed with said alkylene oxide within a substantially solvent-free environment.
Claim 37
Dependent Claim
29 words
The method of claim 28 wherein the alkylene oxide is at least one of a member selected from the class consisting of ethylene oxide, propylene oxide, and butylene oxide.
Claim 38
Dependent Claim
21 words
The method of claim 28 wherein said weight ratio of oxide to condensation product is between about 1-to-5 and about 3-to-1.
Claim 39
Dependent Claim
15 words
The method of claim 8 or 28 wherein said injection medium is a flood water.
Claim 40
Dependent Claim
37 words
The method of claim 8 or 28 wherein said injection medium is a flood water and said polyalkylene oxide adduct is present in said medium in an amount of between about 5 ppm and about 2,000 ppm.
Claim 41
Dependent Claim
23 words
The method of claim 8 or 28 wherein said polyalkylene oxide adduct is introduced into said reservoir in the form of an emulsion.
Claim 42
Dependent Claim
12 words
The method of claim 37 wherein said emulsion is a micellar emulsion.
Claim 43
Dependent Claim
18 words
The method of claim 8 or 28 wherein said polyalkylene oxide adduct is incrementally introduced into said reservoir.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-04-06 | 1984-10-06 | 1985-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-06 | 1988-10-06 | 1989-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-06 | 1992-10-06 | 1993-04-07 | $7700.00 | Window Closed / Lapsed |