US2772564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detection of leaks in hydrocarbon storage systems
Assignee: Sunoco Inc
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Filing: 1954-03-19
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Granted: 1956-12-04
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Expires: 1974-03-19
Abstract
No abstract record available.
Inventors
- 👤 Patrick F Dougherty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:09
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; E; E21; E21B; E21B47/00; E21B47/10; F; F16; F16L; F16L2101/00; F16L2101/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
182 words
IN THE METHOD OF STORING A HYDROCARBON IN A SUBSURFACE SALT CAVITY HAVING FLUID COMMUNICATION WITH THE GROUND SURFACE THROUGH A TUBING POSITIONED WITH THE BOREHOLE AND THROUGH THE BOREHOLE ANNULUS, SAID BOREHOLE ANNULUS PROVIDING FLUID COMMUNICATION BETWEEN THE GROUND SURFACE AND THE UPPER PORTION OF SAID CAVITY AND SAID TUBING PROVIDING FLUID COMMUNICATION BETWEEN THE GROUND SURFACE AND THE LOWER PORTION OF SAID CAVITY, IN WHICH METHOD THE HYDROCARBON TO BE STORED IS INTRODUCED INTO SAID CAVITY THROUGH SAID ANNULUS TO THEREBY DISPLACE BRINE FROM THE SYSTEM THROUGH SAID TUBING, AND IN WHICH METHOD THE STORED HYDROCARBON IS RECOVERED BY INTRODUCING BRINE INTO SAID CAVITY THROUGH SAID TUBING TO THEREBY DISPLACE STORED HYDROCARBON FROM THE SYSTEM THROUGH SAID ANNULUS, THE METHOD OF DETECTING AND LOCATING LEAKS IN SAID TUBING WHICH COMPRISES THE STEPS OF: (1) FILLING SAID CAVITY, SAID ANNULUS AND SAID TUBING WITH BRINE, (2) INTRODUCING A QUANTITY OF HYDROCARBON INTO SAID TUBING SUFFICIENT TO DISPLACE A PORTION OF THE BRINE THEREFROM AND FROM THE SYSTEM THROUGH SAID ANNULUS, (3) DISCONTINUING THE INTRODUCTION OF HYDROCARBON FOR A TIME SUFFICIENT TO
Claim 2
Dependent Claim
182 words
IN THE METHOD OF STORING A HYDROCARBON IN A SUBSURFACE SALT CAVITY HAVING FLUID COMMUNICATION WITH THE GROUND SURFACE THROUGH A TUBING POSITIONED WITH THE BOREHOLE AND THROUGH THE BOREHOLE ANNULUS, SAID BOREHOLE ANNULUS PROVIDING FLUID COMMUNICATION BETWEEN THE GROUND SURFACE AND THE UPPER PORTION OF SAID CAVITY AND SAID TUBING PROVIDING FLUID COMMUNICATION BETWEEN THE GROUND SURFACE AND THE LOWER PORTION OF SAID CAVITY, IN WHICH METHOD THE HYDROCARBON TO BE STORED IS INTRODUCED INTO SAID CAVITY THROUGH SAID ANNULUS TO THEREBY DISPLACE BRINE FROM THE SYSTEM THROUGH SAID TUBING, AND IN WHICH METHOD THE STORED HYDROCARBON IS RECOVERED BY INTRODUCING BRINE INTO SAID CAVITY THROUGH SAID TUBING TO THEREBY DISPLACE STORED HYDROCARBON FROM THE SYSTEM THROUGH SAID ANNULUS, THE METHOD OF DETECTING AND LOCATING LEAKS IN SAID TUBING WHICH COMPRISES THE STEPS OF: (1) FILLING SAID CAVITY, SAID ANNULUS AND SAID TUBING WITH BRINE, (2) INTRODUCING A QUANTITY OF HYDROCARBON INTO SAID TUBING SUFFICIENT TO DISPLACE A PORTION OF THE BRINE THEREFROM AND FROM THE SYSTEM THROUGH SAID ANNULUS, (3) DISCONTINUING THE INTRODUCTION OF HYDROCARBON FOR A TIME SUFFICIENT TO
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) | 1959-12-04 | 1960-06-04 | 1960-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-04 | 1964-06-04 | 1964-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-04 | 1968-06-04 | 1968-12-04 | $7700.00 | Window Closed / Lapsed |