Patent US2680487A successfully refreshed from Google Patents.
US2680487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for well operations employing hydrogen peroxide
Assignee: Phillips Petroleum Co
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Filing: 1949-01-04
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Granted: 1954-06-08
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Expires: 1969-01-04
Abstract
No abstract record available.
Inventors
- 👤 Paul G Carpenter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:57
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/14; E21B29/00; E21B43/00; E21B43/11; E21B43/114
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
103 words
THE PROCESS OF REMOVING SOLID MATERIAL FROM A PORTION OF A WALL OF A WELL BORE IN THE EARTH COMPRISING POSITIONING A SUPPLY OF AT LEAST 70% BY WEIGHT HYDROGEN PEROXIDE ADJACENT THE POINT OF SAID REMOVAL IN SAID BORE HOLE, EJECTING SAID HYDROGEN PEROXIDE FROM SAID SUPPLY, CONTACTING SAID EJECTED HYDROGEN PEROXIDE WITH A HYDROGEN PEROXIDE DECOMPOSITION CATALYST SELECTED FROM THE GROUP CONSISTING OF FINELY DIVIDED SILVER, FINELY DIVIDED PLATINUM, ALKALI METAL AND ALKALINE EARTH METAL PERMANGANATES AND MANGANESE DIOXIDE, AND DIRECTING THE VOLUME OF STREAM AND OXYGEN PRODUCED BY SAID DECOMPOSITION IN AJET AGAINST SAID SOLID MATERIAL TO REMOVE THE SAME.
Claim 2
Dependent Claim
103 words
THE PROCESS OF REMOVING SOLID MATERIAL FROM A PORTION OF A WALL OF A WELL BORE IN THE EARTH COMPRISING POSITIONING A SUPPLY OF AT LEAST 70% BY WEIGHT HYDROGEN PEROXIDE ADJACENT THE POINT OF SAID REMOVAL IN SAID BORE HOLE, EJECTING SAID HYDROGEN PEROXIDE FROM SAID SUPPLY, CONTACTING SAID EJECTED HYDROGEN PEROXIDE WITH A HYDROGEN PEROXIDE DECOMPOSITION CATALYST SELECTED FROM THE GROUP CONSISTING OF FINELY DIVIDED SILVER, FINELY DIVIDED PLATINUM, ALKALI METAL AND ALKALINE EARTH METAL PERMANGANATES AND MANGANESE DIOXIDE, AND DIRECTING THE VOLUME OF STREAM AND OXYGEN PRODUCED BY SAID DECOMPOSITION IN AJET AGAINST SAID SOLID MATERIAL TO REMOVE THE SAME.
Claim 3
Dependent Claim
57 words
APPARATUS FOR PRODUCING A JET OF HYDROGEN PEROXIDE DECOMPOSITION PRODUCTS COMPRISING IN COMBINATION A TANK FOR SAID HYDROGEN PEROXIDE, MEANS TO POSITION SAID TANK IN A WELL, MEANS TO SUPPLY GAS PRESSURE TO SAID TANK TO EJECT SAID HYDROGEN PEROXIDE, AN OUTLET CONDUIT COMPRISING A ROTATABLE REACTION JET TURBINE, A HYDROGEN PEROXIDE DECOMPOSITION CATALYST SECURED IN POSITION
Claim 4
Dependent Claim
57 words
APPARATUS FOR PRODUCING A JET OF HYDROGEN PEROXIDE DECOMPOSITION PRODUCTS COMPRISING IN COMBINATION A TANK FOR SAID HYDROGEN PEROXIDE, MEANS TO POSITION SAID TANK IN A WELL, MEANS TO SUPPLY GAS PRESSURE TO SAID TANK TO EJECT SAID HYDROGEN PEROXIDE, AN OUTLET CONDUIT COMPRISING A ROTATABLE REACTION JET TURBINE, A HYDROGEN PEROXIDE DECOMPOSITION CATALYST SECURED IN POSITION
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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) | 1957-06-07 | 1957-12-07 | 1958-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-07 | 1961-12-07 | 1962-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-07 | 1965-12-07 | 1966-06-08 | $7700.00 | Window Closed / Lapsed |