US3075463A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Well fracturing
Assignee: Dow Chemical Co
•
Filing: 1959-09-04
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Granted: 1963-01-29
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Expires: 1979-09-04
Abstract
No abstract record available.
Inventors
- 👤 Louis H Eilers
- 👤 Park Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:50
CPC Classifications
F; F42; F42D; F42D3/00; F42D3/04; C; C06; C06B; C06B47/00; E; E21; E21B; E21B43/00; E21B43/25; E21B43/26; E21B43/263
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
THE METHOD OF TREATING A FORMATION TRAVERSED BY A WELL WHICH COMPRISES INJECTING DOWN THE WELL AND INTO THE FORMATION A COMPOSITION CONSISTING OF (1) A LIQUID OXIDIZING AGENT SELECTED FROM THE CLASS CONSISTING OF NITRIC ACID, RED FUMING NITRIC ACID, WHITE FUMING NITRIC ACID MIXTURES OF CONCENTRATED SULFURIC ACID AND A NITRIC ACID, MIXTURES OF CONCENTRATED SULFURIC ACID AND A FUMING NITRIC ACID, LIQUID HALOGENS, HYDROGEN PEROXIDE, AND PERCHLORIC ACID AND (2) A LIQUID FUEL SELECTED FROM THE CLASS CONSISTING OF LOWER CARBON CHAIN LENGTH HYDROCARBONS, NITROALKANES, ALIPHATIC ALCOHOL, ETHERS, AN ESTERS, ARYL AND ALKARYL ESTERS, AND COMBUSTIBLE ORGANIC LIQUID DISPERSIONS OF FINELY DIVIDED SOLID FUELS SELECTED FROM THE CLASS CONSISTING OF BITUMEN, TARS, ASPHALT, AND PARTICULATE CARBON. AND THEREAFTER DETONATING THE COMPOSITION THUS INJECTED BY CONTACTING IT WITH A LIQUID CHEMICAL IGNITER CAPABLE OF RENDERING THE LIQUID OXIDIZING AGENT AND LIQUID MIXTURE HYPERGOLIC.
Claim 2
Independent Claim
145 words
THE METHOD OF TREATING A FORMATION TRAVERSED BY A WELL WHICH COMPRISES INJECTING DOWN THE WELL AND INTO THE FORMATION A COMPOSITION CONSISTING OF (1) A LIQUID OXIDIZING AGENT SELECTED FROM THE CLASS CONSISTING OF NITRIC ACID, RED FUMING NITRIC ACID, WHITE FUMING NITRIC ACID MIXTURES OF CONCENTRATED SULFURIC ACID AND A NITRIC ACID, MIXTURES OF CONCENTRATED SULFURIC ACID AND A FUMING NITRIC ACID, LIQUID HALOGENS, HYDROGEN PEROXIDE, AND PERCHLORIC ACID AND (2) A LIQUID FUEL SELECTED FROM THE CLASS CONSISTING OF LOWER CARBON CHAIN LENGTH HYDROCARBONS, NITROALKANES, ALIPHATIC ALCOHOL, ETHERS, AN ESTERS, ARYL AND ALKARYL ESTERS, AND COMBUSTIBLE ORGANIC LIQUID DISPERSIONS OF FINELY DIVIDED SOLID FUELS SELECTED FROM THE CLASS CONSISTING OF BITUMEN, TARS, ASPHALT, AND PARTICULATE CARBON. AND THEREAFTER DETONATING THE COMPOSITION THUS INJECTED BY CONTACTING IT WITH A LIQUID CHEMICAL IGNITER CAPABLE OF RENDERING THE LIQUID OXIDIZING AGENT AND LIQUID MIXTURE HYPERGOLIC.
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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) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |