US3869388A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil water separation
Assignee: ConocoPhillips Co
•
Filing: 1973-06-25
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Granted: 1975-03-04
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Expires: 1993-06-25
Abstract
Abstract A method for separating oil and water in storage vessels by adding a liquid inert to and insoluble in both the oil and the water and having a specific gravity higher than that of the oil and lower than that of the water to form a layer between the oil and the water.
Inventors
- 👤 Richard M Vennett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:23
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/04; B01D17/047; B01D12/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
82 words
A METHOD FOR SEPARATING AND PREVENTING MICROBIAL GROWTH BETWEEN OIL AND WATER IN STORAGE VESSELS BY ADDING A LIQUID INERT TO AND INSOLUBLE IN BOTH OIL AND WATER AND HAVING A SPECIFIC GRAVITY HIGHER THAN THE SPECIFIC GRAVITY OF SAID OIL AND LOWER THAN THE SPECIFIC GRAVITY OF SAID WATER TO FORM A LAYER BETWEEN SAID OIL AND SAID WATER, SAID LIQUID BEING SELECTED FROM THE GROUP CONSISTING OF DIMETHYLPOLYSILOXANE SILICONE FLUIDS AND METHYLPHENYLPOLY SILOXANE SILICONE FLUIDS AND CONTAINING AN ANTIMICROBIAL AGENT.
Claim 2
Independent Claim
82 words
A METHOD FOR SEPARATING AND PREVENTING MICROBIAL GROWTH BETWEEN OIL AND WATER IN STORAGE VESSELS BY ADDING A LIQUID INERT TO AND INSOLUBLE IN BOTH OIL AND WATER AND HAVING A SPECIFIC GRAVITY HIGHER THAN THE SPECIFIC GRAVITY OF SAID OIL AND LOWER THAN THE SPECIFIC GRAVITY OF SAID WATER TO FORM A LAYER BETWEEN SAID OIL AND SAID WATER, SAID LIQUID BEING SELECTED FROM THE GROUP CONSISTING OF DIMETHYLPOLYSILOXANE SILICONE FLUIDS AND METHYLPHENYLPOLY SILOXANE SILICONE FLUIDS AND CONTAINING AN ANTIMICROBIAL AGENT.
Claim 3
Dependent Claim
20 words
The method of claim 1 wherein said storage vessels are underwater crude oil storage vessels and said water is seawater.
Claim 4
Dependent Claim
33 words
The method of claim 2 wherein said liquid is a silicone fluid having a viscosity from about 5 to about 5,000 centistokes and a specific gravity from about 0.96 to about 1.05 cc/g.
Claim 5
Dependent Claim
19 words
The method of claim 3 wherein said silicone fluid has a viscosity from about 50 to about 2,000 centistokes.
Claim 6
Dependent Claim
12 words
The method of claim 3 wherein said fluid is dimethylpolysiloxane silicone fluid.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-03 | 1978-09-02 | 1979-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-03 | 1982-09-02 | 1983-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-03 | 1986-09-02 | 1987-03-04 | $7700.00 | Window Closed / Lapsed |