US3205946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Consolidation by silica coalescence
Assignee: Shell USA Inc
•
Filing: 1962-03-12
•
Granted: 1965-09-14
•
Expires: 1982-03-12
Abstract
No abstract record available.
Inventors
- 👤 Prats Michael
- 👤 Jr Tyler W Hamby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:25
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/13; E21B33/138; C; C09; C09K; C09K8/00; C09K8/56; C09K8/57; C09K8/572
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A METHOD OF CONSOLIDATING GRANULAR AGGREGATES SURROUNDING A BOREHOLE PENETRATING AN UNCONSOLIDATED SUBTERRANEAN RESERVOIR FORMATION IN THE PRESENCE OF SILICA COMPRISING: (A) CONTACTING SAID FORMATION WITH A HEATED AQUEOUS LIQUID AT A TEMPERATURE SUFFICIENT TO DISSOLVE SOME OF SAID SILICA PRESENT, SAID LIQUID BEING UNDER A PRESSURE WHICH IS AT LEAST EQUAL TO THE PRESSURE OF SAID RESERVOIR FORMATION; AND (B) COOLING SAID HEATED AQUEOUS LIQUID CONTAINING DISSOLVED SILICA TO CAUSE SAID DISSOLVED SILICA TO PRECIPITATE
Claim 2
Independent Claim
76 words
A METHOD OF CONSOLIDATING GRANULAR AGGREGATES SURROUNDING A BOREHOLE PENETRATING AN UNCONSOLIDATED SUBTERRANEAN RESERVOIR FORMATION IN THE PRESENCE OF SILICA COMPRISING: (A) CONTACTING SAID FORMATION WITH A HEATED AQUEOUS LIQUID AT A TEMPERATURE SUFFICIENT TO DISSOLVE SOME OF SAID SILICA PRESENT, SAID LIQUID BEING UNDER A PRESSURE WHICH IS AT LEAST EQUAL TO THE PRESSURE OF SAID RESERVOIR FORMATION; AND (B) COOLING SAID HEATED AQUEOUS LIQUID CONTAINING DISSOLVED SILICA TO CAUSE SAID DISSOLVED SILICA TO PRECIPITATE
References Cited (Backward Citations)
US1379656A
Cited
US2771952A
Cited
US3004597A
Cited
US3010513A
Cited
US3104704A
Cited
US3070159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |