Patent US3244229A successfully refreshed from Google Patents.
US3244229A
Expired / Lapsed
US
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Production of fluids from unconsolidated formations
Assignee: Pan American Petroleum Corp
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Filing: 1963-04-12
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Granted: 1966-04-05
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Expires: 1983-04-12
Abstract
No abstract record available.
Inventors
- 👤 Karol L Hujsak
- 👤 William G Bearden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:41
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/02; E21B43/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A METHOD OF FORMING A FIXED FILTER PACK ADJACENT AN INCOMPETENT OIL-PRODUCING ZONE PENETRATED BY A WELL, COMPRISING PLACING A GROUND HYDRAULIC CEMENT CLINKER SELECTED FROM A GROUP CONSISTING OF CALCIUM SILICATE, CALCIUM ALUMINATE, ANDHIGH ALUMINA CEMENTS IN CONTACT WITH THE PORTION OF SAID ZONE EXPOSED TO SAID WELL, SAID CLINKER HAVING A PARTICLE SIZE RANGING FROM ABOUT -10 TO ABOUT +40 MESH, ALLOWING THE PARTICLES OF SAID CLINKER TO BOND TOGETHER BY MEANS OF HYDRATION AT THE POINTS OF CONTACT TO FORM A RIGID OIL-PERMEABLE PACK, AND PRODUCING OIL FROM SAID ZONE THROUGH SAID PACK INTO SAID WELL SUBSTANTIALLY FREE FROM ABRASIVE SOLIDS.
Claim 2
Independent Claim
104 words
A METHOD OF FORMING A FIXED FILTER PACK ADJACENT AN INCOMPETENT OIL-PRODUCING ZONE PENETRATED BY A WELL, COMPRISING PLACING A GROUND HYDRAULIC CEMENT CLINKER SELECTED FROM A GROUP CONSISTING OF CALCIUM SILICATE, CALCIUM ALUMINATE, ANDHIGH ALUMINA CEMENTS IN CONTACT WITH THE PORTION OF SAID ZONE EXPOSED TO SAID WELL, SAID CLINKER HAVING A PARTICLE SIZE RANGING FROM ABOUT -10 TO ABOUT +40 MESH, ALLOWING THE PARTICLES OF SAID CLINKER TO BOND TOGETHER BY MEANS OF HYDRATION AT THE POINTS OF CONTACT TO FORM A RIGID OIL-PERMEABLE PACK, AND PRODUCING OIL FROM SAID ZONE THROUGH SAID PACK INTO SAID WELL SUBSTANTIALLY FREE FROM ABRASIVE SOLIDS.
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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) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |