US3673124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soluble oil composition
Assignee: Union Oil Company of California
•
Filing: 1969-08-27
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Granted: 1972-06-27
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Expires: 1989-08-27
Abstract
Abstract A soluble oil composition comprising a mixture of liquid hydrocarbon, a surface active agent and butyl Cellosolve that is particularly adapted for use as a displacement fluid in a miscible flooding process. The soluble oil composition can be employed as a substantially anhydrous liquid or as a water-in-oil microemulsion.
Inventors
- 👤 Le Roy W Holm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:29
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/58; Y; Y10; Y10S; Y10S507/00; Y10S507/935; Y10S507/936; Y10S507/937; Y10S507/938
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
24 words
The composition defined in claim 1 including water in an amount not greater than that amount of water causing inversion to an oil-in-water emulsion.
Claim 2
Dependent Claim
14 words
The composition defined in claim 2 including up to about 40 volume percent water.
Claim 3
Dependent Claim
18 words
The composition defined in claim 2 wherein said water is present in the form of a water-in-oil microemulsion.
Claim 4
Dependent Claim
25 words
The composition defined in claim 2 including a water-soluble alkali metal salt in an amount up to about 15,000 parts per million parts of water.
Claim 5
Dependent Claim
22 words
The composition defined in claim 1 wherein said petroleum crude oil contains a substantial proportion of constituents boiling above about 400* F.
Claim 6
Dependent Claim
37 words
The composition defined in claim 1 comprising 45 to 75 volume percent petroleum crude oil, 8 to 30 volume percent oil soluble surface active alkyl aryl sulfonates, and 3 to 8 volume percent ethylene glycol monobutyl ether.
Claim 7
Dependent Claim
63 words
A composition consisting essentially of 45 to 90 volume percent petroleum crude oil, 8 to 30 volume percent oil-soluble surface active mixed alkyl aryl monosulfonates, 0.5 to 8 volume percent ethylene glycol monobutyl ether, and water in an amount not greater than that amount of water causing inversion to an oil-in-water emulsion, said water being present in the form of a water-in-oil microemulsion.
Claim 8
Dependent Claim
18 words
The composition defined in claim 8 including a light liquid hydrocarbon to reduce the viscosity of the microemulsion.
Claim 9
Dependent Claim
26 words
The composition defined in claim 8 including a water-soluble monovalent alkali metal salt in an amount up to about 15,000 parts per million parts of water.
References Cited (Backward Citations)
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Cited
US3163214A
Cited
US3296129A
Cited
US3330343A
Cited
US3254714A
Cited
US3507331A
Cited
US3454095A
Cited
US3477511A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |