US3289416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage-cavern apparatus and process for treatment of the displacing water
Assignee: Phillips Petroleum Co
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Filing: 1964-01-14
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Granted: 1966-12-06
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Expires: 1984-01-14
Abstract
No abstract record available.
Inventors
- 👤 Charles W Varvel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:44
CPC Classifications
F; F17; F17C; F17C3/00; F17C3/005; F17C2205/00; F17C2205/03; F17C2205/0302; F17C2205/0341; F17C2221/00; F17C2221/03; F17C2221/032; F17C2221/035; F17C2223/00; F17C2223/01; F17C2223/0146; F17C2223/0153; F17C2223/03; F17C2223/033; F17C2225/00; F17C2225/01; F17C2225/0107; F17C2225/0123; F17C2227/00; F17C2227/01; F17C2227/0192; F17C2227/03; F17C2227/0302; F17C2227/0332; F17C2227/0367; F17C2227/0388; F17C2227/0393; F17C2250/00; F17C2250/01; F17C2260/00; F17C2260/05; F17C2260/053; F17C2265/00; F17C2265/01; F17C2265/012; F17C2265/05; F17C2270/00; F17C2270/01; F17C2270/0142; F17C2270/0144; F17C2270/0149; F17C2270/0152
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
IN A PROCESS FOR HANDLING LIQUEFIED STORED GAS IN AN UNDERGROUND CAVERN OVER WATER WHEREIN THE GAS IS DISPLACED FROM THE CAVERN INTO METAL CONVEYING EQUIPMENT SUCH AS A PIPELINE OR METAL CYLINDERS, BY WATER WHICH IS SATURATED WITH AT LEAST ONE GAS OF THE GROUP CONSISTING OF CO2 OR O2 AT A TEMPERATURE LOWER THAN RESERVOIR TEMPERATURE SO THAT UPON DISPLACING SAID LIQUEFIED SAID WATER, THE SATURATING GAS DIFFUSES INTO SAID LIQUEFIED GAS AT THE WATER-GAS INTERFACE AND CAUSES CORROSION IN SAID EQUIPMENT, THE IMPROVEMENT COMPRISING: (1) HEATING SAID WATER TO A TEMPERATURE AT LEAST AS HIGH AS CAVERN TEMPERATURE; (2) PASSING THE HEATED WATER OF STEP (1) THRU A STRIPPING ZONE IN COUNTERCURRENT FLOW WITH VAPORIZED LIQUEFIED GAS AS STRIPPING GAS; AND (3) PASSING THE STRIPPED WATER FROM STEP (2) INTO SAID CAVERN TO DISPLACE STORED LIQUEFIED GAS THEREFROM.
Claim 2
Dependent Claim
141 words
IN A PROCESS FOR HANDLING LIQUEFIED STORED GAS IN AN UNDERGROUND CAVERN OVER WATER WHEREIN THE GAS IS DISPLACED FROM THE CAVERN INTO METAL CONVEYING EQUIPMENT SUCH AS A PIPELINE OR METAL CYLINDERS, BY WATER WHICH IS SATURATED WITH AT LEAST ONE GAS OF THE GROUP CONSISTING OF CO2 OR O2 AT A TEMPERATURE LOWER THAN RESERVOIR TEMPERATURE SO THAT UPON DISPLACING SAID LIQUEFIED SAID WATER, THE SATURATING GAS DIFFUSES INTO SAID LIQUEFIED GAS AT THE WATER-GAS INTERFACE AND CAUSES CORROSION IN SAID EQUIPMENT, THE IMPROVEMENT COMPRISING: (1) HEATING SAID WATER TO A TEMPERATURE AT LEAST AS HIGH AS CAVERN TEMPERATURE; (2) PASSING THE HEATED WATER OF STEP (1) THRU A STRIPPING ZONE IN COUNTERCURRENT FLOW WITH VAPORIZED LIQUEFIED GAS AS STRIPPING GAS; AND (3) PASSING THE STRIPPED WATER FROM STEP (2) INTO SAID CAVERN TO DISPLACE STORED LIQUEFIED GAS THEREFROM.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |