US2784787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of suppressing water and gas coning in oil wells
Assignee: Shell Development Co
•
Filing: 1953-08-11
•
Granted: 1957-03-12
•
Expires: 1973-08-11
Abstract
No abstract record available.
Inventors
- 👤 Charles S Matthews
- 👤 James W Killian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:10
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
IN A WELL BOREHOLE TRAVERSING AN OIL-BEARING FORMATION AND OTHER FORMATIONS ADJACENT THERETO CONTAINING UNDESIRABLE FLUIDS, THE METHOD OF SUPPRESSING THE MIGRATION OF A FLUID FROM SAID OTHER FORMATIONS INTO THE OILBEARING FORMATION ADJACENT THE BOREHOLD, SAID METHOD COMPRISING PACKING OFF THE SECTION OF BOREHOLE ADJACENT THE FORMATION TO BE SEALED, INJECTING A FLUID WATER AND OIL SOLUBLE SEALING MATERIAL UNDER PRESSURE RADIALLY INTO THE
Claim 2
Dependent Claim
65 words
IN A WELL BOREHOLE TRAVERSING AN OIL-BEARING FORMATION AND OTHER FORMATIONS ADJACENT THERETO CONTAINING UNDESIRABLE FLUIDS, THE METHOD OF SUPPRESSING THE MIGRATION OF A FLUID FROM SAID OTHER FORMATIONS INTO THE OILBEARING FORMATION ADJACENT THE BOREHOLD, SAID METHOD COMPRISING PACKING OFF THE SECTION OF BOREHOLE ADJACENT THE FORMATION TO BE SEALED, INJECTING A FLUID WATER AND OIL SOLUBLE SEALING MATERIAL UNDER PRESSURE RADIALLY INTO THE
References Cited (Backward Citations)
US2368424A
Cited
US2258616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-03-11 | 1960-09-10 | 1961-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-03-11 | 1964-09-10 | 1965-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-03-11 | 1968-09-10 | 1969-03-12 | $7700.00 | Window Closed / Lapsed |