US3336982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well stimulation method employing hypergolic mixtures
Assignee: Dow Chemical Co
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Filing: 1964-11-25
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Granted: 1967-08-22
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Expires: 1984-11-25
Abstract
No abstract record available.
Inventors
- 👤 Paul E Woodward
- 👤 Raymond D Davidson
- 👤 Warren M Zingg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:13
CPC Classifications
E; E21; E21B; E21B43/00; E21B43/25; E21B43/26; E21B43/263
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
THE METHOD OF STIMULATING PRODUCTION FROM A WELL PENETRATING A FLUID-BEARING STRATUM IN A SUBTERRANEAN FORMATION HAVING PASSAGEWAYS THEREIN, EMPLOYING A FUEL AND AN OXIDIZING AGENT WHICH CONSISTS ESSENTIALLY OF (1) INJECTING A LIQUID DOWN THE WELL AT SUFFICIENT PRESSURE TO FRACTURE THE FORMATION; (2) PROVIDING THE WELL A LIQUID SELECTED FROM THE CLASS CONSISTING OF NON-COMBUSTIBLE LIQUIDS AND RELATIVELY UNREACTIVE FUELS; (3) INJECTING AN OXI-
Claim 2
Independent Claim
66 words
THE METHOD OF STIMULATING PRODUCTION FROM A WELL PENETRATING A FLUID-BEARING STRATUM IN A SUBTERRANEAN FORMATION HAVING PASSAGEWAYS THEREIN, EMPLOYING A FUEL AND AN OXIDIZING AGENT WHICH CONSISTS ESSENTIALLY OF (1) INJECTING A LIQUID DOWN THE WELL AT SUFFICIENT PRESSURE TO FRACTURE THE FORMATION; (2) PROVIDING THE WELL A LIQUID SELECTED FROM THE CLASS CONSISTING OF NON-COMBUSTIBLE LIQUIDS AND RELATIVELY UNREACTIVE FUELS; (3) INJECTING AN OXI-
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) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |