US2815078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inhibiting corrosion of deep well tubing
Assignee: Phillips Petroleum Co
•
Filing: 1955-03-18
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Granted: 1957-12-03
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Expires: 1975-03-18
Abstract
No abstract record available.
Inventors
- 👤 Orvel B Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:57
CPC Classifications
E; E21; E21B; E21B41/00; E21B41/02; Y; Y10; Y10S; Y10S166/00; Y10S166/902
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A METHOD FOR TREATING THE INNER WALL OF A DEEP WELL TUBING IN A DEEP WELL EXHIBITING A PRESSURE SUBSTANTIALLY GREATER THAN ATMOSPHERIC PRESSURE, COMPRISING, INTRODUCING A SWAB INTO THE UPPER PORTION OF THE DEEP WELL TUBING TO BE TREATED INTRODUCING TREATING LIQUID INTO SAID DEEP WELL TUBING ABOVE SAID SWAB, PRESSURING A FLUID INTO SAID DEEP WELL TUBING ABOVE SAID SWAB IN SUCH A MANNER AS TO FORCE SAID SWAB AND SAID TREATING LIQUID DOWNWARD IN SAID DEEP WELL TUBING IN SAID WELL, RELEASING THE PRESSURE OF THE PRESURE FLUID IN SAID DEEP WELL TUBING AND FORCING SAID PRESURE FLUID, SAID TREATING LIQUID AND SAID SWAB UPWARD IN SAID DEEP WELL TUBING BY SAID WELL PRESSURE SUBSTANTIALLY GREATER THAN ATMOSPHERIC PRESSURE.
Claim 2
Independent Claim
122 words
A METHOD FOR TREATING THE INNER WALL OF A DEEP WELL TUBING IN A DEEP WELL EXHIBITING A PRESSURE SUBSTANTIALLY GREATER THAN ATMOSPHERIC PRESSURE, COMPRISING, INTRODUCING A SWAB INTO THE UPPER PORTION OF THE DEEP WELL TUBING TO BE TREATED INTRODUCING TREATING LIQUID INTO SAID DEEP WELL TUBING ABOVE SAID SWAB, PRESSURING A FLUID INTO SAID DEEP WELL TUBING ABOVE SAID SWAB IN SUCH A MANNER AS TO FORCE SAID SWAB AND SAID TREATING LIQUID DOWNWARD IN SAID DEEP WELL TUBING IN SAID WELL, RELEASING THE PRESSURE OF THE PRESURE FLUID IN SAID DEEP WELL TUBING AND FORCING SAID PRESURE FLUID, SAID TREATING LIQUID AND SAID SWAB UPWARD IN SAID DEEP WELL TUBING BY SAID WELL PRESSURE SUBSTANTIALLY GREATER THAN ATMOSPHERIC PRESSURE.
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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) | 1960-12-02 | 1961-06-03 | 1961-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-02 | 1965-06-03 | 1965-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-02 | 1969-06-03 | 1969-12-03 | $7700.00 | Window Closed / Lapsed |