Patent US3220476A successfully refreshed from Google Patents.
US3220476A
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Method for fluid pressure vibratory fracture of formations and fluid recovery therefrom
Assignee: Individual
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Filing: 1963-10-11
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Granted: 1965-11-30
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Expires: 1983-10-11
Abstract
No abstract record available.
Inventors
- 👤 Clarence W Brandon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:31
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/003; E21B28/00; E21B43/25; E21B43/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
THE METHOD OF FRACTURING A PRODUCTIVE RELATIVELY BRITTLE STRATUM PENETRATED BY A WELL BORE WHEREIN A RELATIVELY DEFORMABLE NON-PRODUCTIVE STRATUM IS IN OPERATIVE PRESSURE TRANSMITTING AND VIBRATION TRANSMITTING RELATION WITH SAID BRITTLE STATUM, WHICH COMPRISES PACKING OFF SAID WELL BORE TO CONFINE A FACE OF SAID DEFORMABLE STRATUM REMOTE AND ISOLATED FROM SAID BRITTLE STRATUM, SUPPLYING PRESSURE FLUID THROUGH SAID WELL BORE TO SAID CONFINED FACE,
Claim 2
Independent Claim
66 words
THE METHOD OF FRACTURING A PRODUCTIVE RELATIVELY BRITTLE STRATUM PENETRATED BY A WELL BORE WHEREIN A RELATIVELY DEFORMABLE NON-PRODUCTIVE STRATUM IS IN OPERATIVE PRESSURE TRANSMITTING AND VIBRATION TRANSMITTING RELATION WITH SAID BRITTLE STATUM, WHICH COMPRISES PACKING OFF SAID WELL BORE TO CONFINE A FACE OF SAID DEFORMABLE STRATUM REMOTE AND ISOLATED FROM SAID BRITTLE STRATUM, SUPPLYING PRESSURE FLUID THROUGH SAID WELL BORE TO SAID CONFINED FACE,
References Cited (Backward Citations)
CA654454A
Cited
US2670801A
Cited
US2547778A
Cited
US2866509A
Cited
US2838117A
Cited
US2871943A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |