US3259188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbohydrate sand consolidation
Assignee: Shell USA Inc
•
Filing: 1963-11-18
•
Granted: 1966-07-05
•
Expires: 1983-11-18
Abstract
No abstract record available.
Inventors
- 👤 Stephen M O'brien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:36
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/13; E21B33/138; C; C09; C09K; C09K8/00; C09K8/56; C09K8/57; C09K8/575; C09K8/5751; C09K8/5758
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
AN IMPROVED METHOD OF CONSOLIDATING LOOSE PARTICLES OF EARTHEN FORMATIONS IN SUBTERRANEAN RESERVOIRS PENETRATED BY A BOREHOLE WHICH GIVES SUPERIOR CONSOLIDATION INTEGRITY COMPRISING: (A) INJECTING INTO PORTIONS OF SAID RESERVOIR TO BBE CONSOLIDATED A FLUID HAVING A CARBOHYDRATE ENTRAINED THEREIN; AND (B) SUBSEQUENTLY HEATING SAID PORTIONS OF SAID RESERVOIR IN THE ABBSENCE OF OXYGEN TO A TEMPERATURE SUFFICIENT TO CARBONIZE SAID CARBOHYDRATE WHILE BALANCING THE DIFFERENTIAL PRESSURES BETWEEN THEBOREHOLE AND SAID PORTION OF SAID RESERVOIR BEING CONSOLIDATED TO CONSOLIDATE SAID LOOSE PARTICLES IN SAID RESERVOIR INTO A PERMEABBLE MASS.
Claim 2
Dependent Claim
89 words
AN IMPROVED METHOD OF CONSOLIDATING LOOSE PARTICLES OF EARTHEN FORMATIONS IN SUBTERRANEAN RESERVOIRS PENETRATED BY A BOREHOLE WHICH GIVES SUPERIOR CONSOLIDATION INTEGRITY COMPRISING: (A) INJECTING INTO PORTIONS OF SAID RESERVOIR TO BBE CONSOLIDATED A FLUID HAVING A CARBOHYDRATE ENTRAINED THEREIN; AND (B) SUBSEQUENTLY HEATING SAID PORTIONS OF SAID RESERVOIR IN THE ABBSENCE OF OXYGEN TO A TEMPERATURE SUFFICIENT TO CARBONIZE SAID CARBOHYDRATE WHILE BALANCING THE DIFFERENTIAL PRESSURES BETWEEN THEBOREHOLE AND SAID PORTION OF SAID RESERVOIR BEING CONSOLIDATED TO CONSOLIDATE SAID LOOSE PARTICLES IN SAID RESERVOIR INTO A PERMEABBLE MASS.
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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) | 1969-07-04 | 1970-01-03 | 1970-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-04 | 1974-01-03 | 1974-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-04 | 1978-01-03 | 1978-07-05 | $7700.00 | Window Closed / Lapsed |