Patent US3245468A successfully refreshed from Google Patents.
US3245468A
Expired / Lapsed
US
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Method for creating a barrier around a well
Assignee: Gulf Research and Development Co
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Filing: 1962-11-06
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Granted: 1966-04-12
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Expires: 1982-11-06
Abstract
No abstract record available.
Inventors
- 👤 Jimmie L Huitt
- 👤 Jr Edward Topanelian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:19
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/13; E21B33/138
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
A METHOD OF CREATING A SUBSTANTIALLY HORIZONTAL BARRIER FOR THE PREVENTION OF COMING INTO WELLS EXTENDING FROM A WELL INTO AN UNDERGROUND FORMATION PENETRATED BY THE WELL COMPRISING CREATING A SUBSTANTIALLY HORIZONTAL FRACTURE EXTENDING FROM THE WELL INTO THE UNDERGROUND FORMATION, DISPLACING INTO THE FRACTURE A LIQUID HAVING A PROPPING AGENT SUSPENDED THEREIN, REDUCING THE PRESSURE IN THE WELL AT THE LEVEL OF THE FRACTURE WHEREBY THE FACES OF THE FRACTURE ENGAGE THE PROPPING AGENT AND HOLD THE PROPPING AGENT IN THE FRACTURE, DISPLACING A SLURRY OF CEMENT INTO THE FRACTURE AT A BOREHOLE PRESSURE AT THE LEVEL OF THE FRACTURE LESS THAN 150 P.S.I. HIGHER THAN THE FORMATION PRESSURE, AND MAINTAINING ON THE WELL AT THE LEVEL OF THE FRACTURE A PRESSURE LESS THEN 150 P.S.I. HIGHER THAN THE FORMATION PRESSURE AND ADAPTED TO HOLD THE CEMENT SLURRY IN THE FRACTURE UNTIL THE CEMENT SETS.
Claim 2
Independent Claim
146 words
A METHOD OF CREATING A SUBSTANTIALLY HORIZONTAL BARRIER FOR THE PREVENTION OF COMING INTO WELLS EXTENDING FROM A WELL INTO AN UNDERGROUND FORMATION PENETRATED BY THE WELL COMPRISING CREATING A SUBSTANTIALLY HORIZONTAL FRACTURE EXTENDING FROM THE WELL INTO THE UNDERGROUND FORMATION, DISPLACING INTO THE FRACTURE A LIQUID HAVING A PROPPING AGENT SUSPENDED THEREIN, REDUCING THE PRESSURE IN THE WELL AT THE LEVEL OF THE FRACTURE WHEREBY THE FACES OF THE FRACTURE ENGAGE THE PROPPING AGENT AND HOLD THE PROPPING AGENT IN THE FRACTURE, DISPLACING A SLURRY OF CEMENT INTO THE FRACTURE AT A BOREHOLE PRESSURE AT THE LEVEL OF THE FRACTURE LESS THAN 150 P.S.I. HIGHER THAN THE FORMATION PRESSURE, AND MAINTAINING ON THE WELL AT THE LEVEL OF THE FRACTURE A PRESSURE LESS THEN 150 P.S.I. HIGHER THAN THE FORMATION PRESSURE AND ADAPTED TO HOLD THE CEMENT SLURRY IN THE FRACTURE UNTIL THE CEMENT SETS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |